Method of providing selective communication between two enclosures

Abstract

A method is described for providing selective communication between two enclosures. The first enclosure includes a first flange and a first door. The second enclosure includes a second flange and a second door. The method includes performing sequentially the steps of arranging the second flange on the first flange, axially maintaining the second flange on the first flange by snap-fitting, securing the first flange to the second flange, securing the first door to the second door, releasing the first door from the first flange, releasing the second door from the second flange, opening the first door relative to the first flange, closing the first door relative to the first flange, securing the first door to the first flange and securing the second door to the second flange, unlocking the first door from the second door, and separating the first door from the second door.

Claims

1. A method of providing selective communication between a first enclosure and a second enclosure of an assembly, the first enclosure defining a first space and comprising a first flange and a first door for providing selective access to the first space through an opening delimited by the first flange, the second enclosure defining a second space and comprising a second flange and a second door for providing selective access to the second space through an opening delimited by the second flange, the method comprising the steps of: arranging the second flange on the first flange; and then axially maintaining the second flange on the first flange by snap-fitting; and then securing the first flange to the second flange; and then securing the first door to the second door, wherein the step of securing the first door to the second door includes locking the first door to the second door so as to inhibit rotation of the first door relative to the second door; and then releasing the first door from the first flange and releasing the second door from the second flange; and then opening the first door relative to the first flange; and then closing the first door relative to the first flange, and then securing the first door to the first flange and securing the second door to the second flange; and then unlocking the first door and second door by detaching the first door from the second door; and then separating the first door from the second door.

2. A method of providing selective communication between a first enclosure and a second enclosure of an assembly, the first enclosure defining a first space and comprising a first flange and a first door for providing selective access to the first space through an opening delimited by the first flange, the second enclosure defining a second space and comprising a second flange and a second door for providing selective access to the second space through an opening delimited by the second flange, the method comprising the steps of: arranging the second flange on the first flange; and then axially maintaining the second flange on the first flange; and then securing the first flange to the second flange; and then securing the first door to the second door, wherein the step of securing the first door to the second door includes locking the first door to the second door so as to inhibit rotation of the first door relative to the second door; and then releasing the first door from the first flange and releasing the second door from the second flange; and then opening the first door relative to the first flange; wherein the assembly comprises: a first securing device for securing the first flange to the second flange, a second securing device for securing the first door to the second door, a first releasing device for releasing the second door from the second flange, a second releasing device for releasing the first door from the first flange, an opening device for opening the first door relative to the first flange, and a controller that is operable to sequentially actuate the first securing device, the second securing device, the first releasing device, the second releasing device, and the opening device, and the method comprises the step of operating the controller to sequentially actuate the first securing device, the second securing device, the first releasing device, the second releasing device, and the opening device.

3. A method of providing selective communication between a first enclosure and a second enclosure of an assembly, the first enclosure defining a first space and comprising a first flange and a first door for providing selective access to the first space through an opening delimited by the first flange, the second enclosure defining a second space and comprising a second flange and a second door for providing selective access to the second space through an opening delimited by the second flange, the method comprising the steps of: securing the first flange to the second flange; and then securing the first door to the second door; and then releasing the first door from the first flange and releasing the second door from the second flange; and then opening the first door relative to the first flange; wherein the assembly comprises: a first securing device for securing the first flange to the second flange, a second securing device for securing the first door to the second door, a first releasing device for releasing the second door from the second flange, a second releasing device for releasing the first door from the first flange, an opening device for opening the first door relative to the first flange, and a controller that is operable to sequentially actuate the first securing device, the second securing device, the first releasing device, the second releasing device, and the opening device, and the method comprises the step of operating the controller to sequentially actuate the first securing device, the second securing device, the first releasing device, the second releasing device, and the opening device.

4. The method of claim 3, wherein the step of securing the first door to the second door includes locking the first door to the second door so as to inhibit rotation of the first door relative to the second door.

5. The method of claim 4, further comprising the steps of: closing the first door relative to the first flange, and then securing the first door to the first flange and securing the second door to the second flange, and then unlocking the first door from the second door by detaching the first door from the second door, and then separating the first door from the second door.

6. The method of claim 3, wherein: the first securing device comprises a securing ring that is rotatable about a longitudinal axis of the assembly, the securing ring comprising a bayonet connector configured to secure the second flange to the first flange upon rotation of the securing ring about the longitudinal axis, and the method comprises the step of operating the controller to actuate the first securing device by rotating the securing ring about the longitudinal axis.

7. The method of claim 6, wherein the securing ring comprises one or more imprints, each of the one or more imprints having a first portion extending axially and a second portion extending laterally from the first portion in a downstream zone.

8. The method of claim 6, wherein the securing ring comprises a sector gear and the method further comprises the step of operating the controller to actuate the first securing device by rotating a pinion that engages the sector gear.

9. The method of claim 3, wherein: the assembly comprises a control ring that is rotatable about a longitudinal axis of the assembly such that rotation of the control ring sequentially actuates the second securing device, the first releasing device, the second releasing device, and the opening device, and the method comprises the step of operating the controller to sequentially actuate the second securing device, the first releasing device, the second releasing device, and the opening device by rotating the control ring.

10. The method of claim 9, wherein the controller comprises: a pinion that engages a gear sector provided on the control ring, and a crank that is operable to rotate the pinion and cause rotation of the control ring.

11. The method of claim 9, wherein the control ring comprises a gear sector that engages and drives a pinion during rotation of the control ring to cause actuation of the second securing device.

12. The method of claim 9, wherein the control ring comprises a gear sector that engages and drives a pinion during rotation of the control ring to cause actuation of both the second securing device and the first releasing device.

13. The method of claim 9, wherein: the second releasing device comprises a locking cam and a locking roller, the locking roller being movable between a first position wherein said locking roller cooperates with the locking cam preventing opening of the first door and a second position wherein said locking roller is separated from the locking cam, and the method comprises the step of operating the controller to actuate the second releasing device by moving the locking roller from the first position to the second position.

14. The method of claim 13, wherein the second releasing device comprises an actuating roller that cooperates with a radial cam surface of the control ring during actuation of the second releasing device to move the locking roller from the first position to the second position.

15. The method of claim 9, wherein: the control ring comprises a gear sector and the opening device comprises a pinion coupled to a hinge that rotatably attaches the first door to the first flange, and the method comprises the step of operating the controller to actuate the opening device by rotating the control ring such that the gear sector of the control ring engages with and drives the pinion.

16. The method of claim 3, wherein: the assembly comprises a securing plate rotatably mounted on an external surface of the first door, rotation of the securing plate actuates the second securing device to secure the first door to the second door, and the controller actuates the second securing device by rotating the securing plate.

17. The method of claim 3, wherein: the assembly comprises a securing plate rotatably mounted on an external surface of the first door, and the method comprises the steps of: performing a first phase of rotation of the securing plate that actuates the second securing device to secure the first door to the second door by a bayonet connection, performing a second phase of rotation of the securing plate that actuates the first releasing device to release the second door from the second flange, and operating the controller to sequentially actuate the second securing device and the first releasing device by rotating the securing plate.

18. The method of claim 3, further comprising the step of axially maintaining the second flange on the first flange by snap-fitting prior to the step of securing the first flange to the second flange.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) This invention shall be better understood using the following description and annexed drawings, wherein:

(2) FIG. 1 is a perspective partial view of an embodiment example of a connection device between a cell and a container, with the container being shown as a dotted line,

(3) FIG. 2 is a perspective view of the device for the sealed connection seen from the exterior of the cell,

(4) FIG. 3 is a detailed view in perspective of the means of axial securing by snap-fitting of the container flange and of the cell flange of the device for the sealed connection,

(5) FIG. 4A is a perspective view of the means of axial securing by snap-fitting of FIG. 3,

(6) FIG. 4B is a top view of the means of securing of FIG. 4A,

(7) FIG. 4C is a cross-section view of FIG. 4B according to the plane I-I,

(8) FIG. 4D is a top view of the means of securing of FIG. 4A, with the container in place,

(9) FIG. 4E is a cross-section view of FIG. 4D according to Ie plan II-II,

(10) FIG. 5 is a front view of the cell flange and of the cell door and of the device for the sealed connection according to the invention, with the control ring and the actuating means omitted,

(11) FIG. 6 is a perspective view of the device for the sealed connection seen from the interior of the cell, with certain elements being shown with transparency,

(12) FIG. 7 is a perspective view of the device for the sealed connection seen from the interior of the cell, with certain elements being shown with transparency according to a point of view different from that of FIG. 6, in an unlocked position of the cell door and of the container door,

(13) FIG. 8 is a view similar to that of FIG. 7, with the device for the sealed connection shown in a locked position of the cell door and of the container door,

(14) FIG. 9 is a cross-section view of the means for inter-door locking along the plane in an unlocked state,

(15) FIG. 10 is a perspective view of the device for the sealed connection seen from the inside of the cell, with certain elements being shown with transparency according to a point of view different from that of FIG. 6, in an unlocked position of the cell door in relation to the cell flange,

(16) FIG. 11 is a perspective view in open position of the connection device, with the container cover omitted,

(17) FIG. 12 is a longitudinal cross-section view diagrammatically showing the connection of a container onto a cell by means of a double door sealed connection device,

(18) FIG. 13A is isometric perspective view with a partial cross-section of a cover of the connection device shown alone,

(19) FIG. 13B is a cross-section view according to Ie plan III-III of FIG. 13A,

(20) FIG. 14A is a top view of another embodiment of the means of axial securing by snap-fitting,

(21) FIG. 14B is a perspective view of the securing means of FIG. 14A,

(22) FIG. 14C is a front view of the securing means of FIG. 14A in an unlocked state,

(23) FIG. 14D is a cross-section view according to Ie plan IV-IV of FIG. 14C,

(24) FIG. 14E is a front view of the securing means of FIG. 14A with the container in place but which is not shown,

(25) FIG. 14F is a cross-section view according to Ie plan V-V of FIG. 14E.

DETAILED DESCRIPTION OF PARTICULAR EMBODIMENTS

(26) The terms upstream and downstream are considered in the direction of the setting into place of the container in the connection device.

(27) In the embodiment shown in the figures, the two closed spaces that are to be connected using a double door sealed connection device provided with the actuating mechanism in accordance with the invention correspond respectively to a confinement cell 10 and to a container 12. It is understood however that the invention also applies in the case where the closed spaces would for example be for one a glove box and for the other a container or two glove boxes.

(28) FIG. 12 diagrammatically shows the cell 10 and the container 12 in a connected state and in a disconnected state.

(29) The cell 10 is delimited by a wall 14 of which only a portion can be seen in FIG. 12. It is provided, conventionally, with means for remote manipulation such as remote handling devices and/or gloves (not shown) secured to the wall 14. The container 12 is also delimited by a wall 16, as shown in particular in FIG. 12.

(30) The cell comprises a cell flange 18 mounted in a sealed manner in a wall 14 of the cell and delimiting an opening 20 that is closed off in a sealed manner by a removable door 22, referred to as a cell door or door.

(31) The container comprises a reservoir 24 and a container flange 26 that is closed off in a sealed manner by a removable door 28. For the purposes of clarity, the container door 28 shall be designated as container cover or cover in order to clearly distinguish it from the cell door. The reservoir 24, the container flange 26 and the cover 28 delimit a sealed space. The cover 28 is secured to the container flange by a bayonet connection 29.

(32) The device for the sealed connection comprises the cell flange 18, the container flange 26, the cell door 22 and the container cover 28. The cell door 22 is articulated on the cell flange 18 by a hinge 30 with axis Y orthogonal to the longitudinal axis X.

(33) The axial direction corresponds to the axis of the cell flange 18 and of the door 22, as well as that of the container flange 26 and of the cover 28 when the latter are secured to the cell. The axial direction is represented by the axis X which is the axis of the connection device.

(34) FIGS. 1 to 11 show in detail an embodiment of a device for the sealed connection according to the invention. The connection device is mounted on the wall of the cell around the opening 20. The connection device is mobile in relation to the wall of the cell 14.

(35) The connection device comprises first means A of securing the container flange 26 onto the cell flange 18.

(36) In the example shown, the container flange 26 comprises four lugs 32 arranged at 90 from each other radially protruding towards the exterior of the container flange 26. The container flange 26 could comprise two lugs, three lugs or more than four lugs, furthermore the angular arrangement is not restrictive.

(37) The first means A comprise a securing ring 100 mounted coaxial to the cell flange 18 onto the outer surface of the latter and able to pivot in relation to it around the longitudinal axis X.

(38) In the example shown, the securing ring 100 comprises four imprints 102 intended to each receive a lug 32 of the container flange 26. The rotation of the securing ring 100 in the anti-clockwise direction provides a securing by bayonet connection between the container flange 26 and the securing ring 100 and therefore between the container flange 26 and the cell flange 18. The imprints 102 have a first portion extending axially 102.1 that allows for the inserting and the removing of the lugs 32 according to an axial direction and a second portion 102.2 extending laterally in relation to the axial portion in a downstream zone. The second portion 102.2 receives the lugs 32 when the securing ring 100 has pivoted, which provides an axial maintaining of the lugs 32 and therefore of the container flange 28 in relation to the cell flange 18.

(39) In the example shown, the securing ring 100 is mounted mobile in relation on the cell flange 18 by means of four rollers 106. It is understood that the number of rollers is not restrictive.

(40) Advantageously, sensors are provided in order to know the various states of the system: door closed, door open, door opening or closing, etc., for example by detecting the displacement and/or the position of the securing ring, more particularly in a motorised embodiment and in an embodiment wherein the operator would not be in a position to visually identify in what state the system is in.

(41) The actuating mechanism comprises an actuating device 108 of the securing ring 100 in rotation around the longitudinal axis X.

(42) The actuating device 108 is arranged advantageously outside of the cell in such a way as to be able to be activated by the operator from the exterior. In the example shown this actuating device 108 comprises a crank 110. Any other mechanical actuating device can be considered. According to a variant, it could be provided to motorise the actuating of the securing ring 100. The motorised means could also be located inside the cell.

(43) The securing ring 100 comprises a radially exterior sector gear 112 which is engaged by a pinion 114 of the actuating device 108. This actuating device is simple and robust. Other means for transmitting the movement between the actuating means and the securing ring could be provided.

(44) Very advantageously, the device for the sealed connection comprises a system for the axial maintaining of the container against the wall of the cell.

(45) Preferably, this system for maintaining comprises at least one device for the axial maintaining with snap-fitting 34 intended to axially maintain the container flange 26 in relation to the cell flange 18, such as shown in the FIGS. 1 to 4E and 5.

(46) This device for maintaining, designated in what follows as snap-fitting device, is intended to be implemented prior to the securing of the two flanges 18, 26 by the securing ring 100. For example, the device is particularly advantageous in providing for the maintaining of the container on the wall 14 of the cell when the container is intended to be positioned horizontally for example for the transfer. This snap-fitting device then makes the assembly of the container on the cell easier for the operator since he no longer has to maintain for example at the end of his arm the container until the container flange 26 is secured to the cell flange 18 by the securing ring 100.

(47) In the example shown, the connection device comprises a snap-fitting device on two lugs 32 diametrically opposite the container flange 26. The snap-fitting devices 34 are located in a diametrically opposite manner on the cell flange 18.

(48) In the FIGS. 3, 4A to 4E, an embodiment of a snap-fitting device 34 can be seen in more detail.

(49) As the two snap-fitting devices are similar, only one of the two devices shall be described. The snap-fitting device 34 comprises a base 36 fastened onto the cell flange 18 at the periphery of the opening 20, an actuating connecting rod 38 articulated in rotation on the base 36 around an axis Y1 perpendicular to the axial direction and to the diametrical direction of the cell flange 18.

(50) The snap-fitting device 34 also comprises a locking connecting rod 40 articulated in rotation on the base 36 around an axis Y2 parallel to the axis Y1, and a return means 42 restoring the locking connecting rod 40 to an unlocked position. The return means 42 is fastened to the base and to the locking connecting rod 40. The actuating connecting rod 38 and the locking connecting rod 40 are in contact by one of their ends 38.1, 40.1 respectively, in such a way that a pivoting of the actuating connecting rod 38 in the clockwise direction causes a rotation of the locking connecting rod 40 in the clockwise direction. The ends 38.2, 40.2 of the connecting rods are located on the side of the opening 20.

(51) The snap-fitting device 34 also comprises means for locking in order to block the locking connecting rod 40 in a locked state. The locking means comprise a finger 44 articulated in rotation on the base 36 around an axis perpendicular to the axes Y1 and Y2 in such a way that an end of the finger 44 can move closer to and move away from the locking connecting rod 40. An elastic return means, such as a spring (not visible) pushes the finger 44 in the direction of the connecting rod. According to a variant, the finger 44 can be formed from a blade which is deformed elastically in flexion and integrating the elastic return means.

(52) The operation of the snap-fitting device is as follows and is shown in FIGS. 4D and 4E. A lug 32 of the container flange 28 is brought closer according to the direction of the arrow F towards the snap-fitting device, until it bears via a first transverse surface against the actuating connecting rod 38. Under the effort applied by the lug 32 towards the cell 14, the actuating connecting rod 38 pivots around its axis Y1 in the clockwise direction, causing the rotation in the clockwise direction of the locking connecting rod 40 around its axis Y2. The locking connecting rod 40 then comes to bear by its other end 40.2 against a second transverse surface 32.2 of the lug 32 opposite the first transverse surface 32.1. The lug 32 is then axially maintained against the cell flange 18. Moreover, the pivoting of the locking connecting rod 40 in the clockwise direction is such that the finger 44 passes over the end 40.2 of the locking connecting rod 40 locking it by bearing against the lug 32. The finger 44 is pivoted in such a way as to separate the end 40.2 of the locking connecting rod 40 in order to release the latter. This releasing takes place when it is desired to detach the container from the cell flange. The pivoting of the finger 44 can be obtained by means of an actuator (not shown) or by a slight rotation of the container.

(53) Another very advantageous embodiment of a snap-fitting device 34 can be seen in FIGS. 14A to 14F, this device differs from device 34 in that it uses a locking cam. The number of moving parts is reduces, reliability of the device is then increased and the manufacturing is easier.

(54) The snap-fitting device 34 comprises a base 36 fastened onto the cell flange 18 at the periphery of the opening 20, an locking cam 40 articulated in rotation on the base 36 around an axis Y2 perpendicular to the axial direction and to the diametrical direction of the cell flange 18, and a return means 42 restoring the locking cam 40 to an unlocked position. The return means 42 is fastened to the base and to the locking cam 40.

(55) The locking cam 40 comprises on its face which is oriented towards the longitudinal axis of the device a downstream area 40.1 in the direction of insertion of the flange in the snap-fitting device, which forms an actuating area, and an upstream area 40.1 which forms an abutment.

(56) The actuating area 40.1 forms a cam surface which protrudes towards the inside of the device in an unlocking position, in such manner that, when the container flange is brought closer towards the snap-fitting device, one of the lugs 32 bears against the cam surface 40.1, resulting in its rotation, the abutment area 40.1 then faces the rear face of the lug, more preferably bears against the rear face of the lug, preventing the withdrawal of the lug.

(57) The snap-fitting device 34 also comprises means for locking in order to block the locking cam 40 in a locked state. The locking means comprise a finger 44 articulated in rotation on the base 36 around an axis perpendicular to the axe Y2 in such a way that an end of the finger 44 can move closer to and move away from the locking connecting rod 40. An elastic return means, such as a spring (not visible) pushes the finger 44 in the direction of the connecting rod. According to a variant, the finger 44 can be formed from a blade which is deformed elastically in flexion and integrating the elastic return means.

(58) The operation of the snap-fitting device is as follows and is shown in FIGS. 14C to 14F.

(59) A lug 32 of the container flange 28 is brought closer according to the direction of the arrow F towards the snap-fitting device, until it bears via a first transverse surface against the cam surface 40.1. Under the effort applied by the lug 32 towards the cell 14, the locking cam 40 pivots around its axis Y2 in the clockwise direction. The abutment area 40.2 bears against the rear face of the lug 32. The lug 32 is then axially maintained against the cell flange 18. Moreover, the pivoting of the locking cam 40 in the clockwise direction is such that the finger 44 passes over the abutment area 40.2 locking it by bearing against the lug 32. To release the locking cam 40, finger 44 is separated from the abutment area. This releasing takes place when it is desired to detach the container from the cell flange. The pivoting of the finger 44 can be obtained by means of an actuator (not shown) or by a slight rotation of the container.

(60) In the example shown, two devices for the axial maintaining by snap-fitting are provided.

(61) In an advantageous variant, a single device for the axial maintaining by snap-fitting can be provided and in place of the second snap-fitting device a base comprising a groove in the shape of an arc of circle that opens radially towards the longitudinal axis X able to house a lug 32 and to maintain it axially. A lug is then engaged in the groove, providing its axial maintaining, then the other lug 32 is engaged in the snap-fitting device.

(62) According to a variant, the system for the axial maintaining could implement magnetic means, the cell flange 18 and the container flange 26 would then be maintained by magnetisation.

(63) More preferably, in the case of a vertical cell wall, the device for the axial maintaining by snap-fitting is located in the lower zone of the cell flange and the base provided with the groove is located in the upper zone of the cell flange.

(64) According to a variant, a system with more than two devices for the maintaining by snap-fitting can be considered.

(65) Particularly advantageously, the snap-fitting device or devices cooperate with the securing ring 100.

(66) As is shown in FIGS. 1 and 3, the snap-fitting devices are located downstream of two imprints radially opposite the securing ring 100, in the direction of insertion of the lugs 32 into the securing ring 100.

(67) As such, after the lugs 32 have been introduced into the imprints 102, they engage the actuating connecting rods 38 which causes the tipping of the locking connecting rods, maintaining the lugs axially.

(68) In the absence of the container flange, the end 40.2 of the locking connecting rod 40 is located in the upper zone of the first portion 102.1 of the window 102 when no container is in place and penetrates into a notch 102.3 made in the first portion 102. The locking connecting rods 40 thus also provide a locking in rotation of the securing ring 100 in the absence of a container. As such, any manipulation of the ring 100 in the absence of the container is avoided.

(69) In this particularly advantageous embodiment, the container flange 26 is maintained axially by the snap-fitting device or devices 34 and then the cell flange 18 and the container flange 26 are secured by the securing ring 100.

(70) The snap-fitting maintaining devices are very advantageous in particular when the cell wall is in a vertical or inclined plane, as such when the container is maintained by the means 34, the operator can easily actuate the first means A.

(71) The device for the sealed connection also comprises second means B intended to secure the container cover 28 and the cell door 22 and to unlock the cover.

(72) The connection device also comprises third means C in order to release the cell door from the cell flange, and fourth means D for releasing the passage between the inside of the container and the inside of the cell.

(73) The device for the sealed connection advantageously has a common actuating system of the second and third means.

(74) The common actuating system is formed by a control ring 48 mounted in rotation on the cell flange 18 around the axial direction and arranged outside of the cell in the example shown. In the example shown, the control ring 48 is a ring gear of which the teeth are oriented radially outwards from the control ring 48. The common actuating system comprises a device for actuating intended to place in rotation the control ring 48 around the longitudinal axis X. Very advantageously, the device for actuating is formed by the device for actuating 108 of the securing ring 100, which makes it possible to simplify the structure and reduce is cost price. According to a variant, a separate device for actuating can be provided.

(75) FIG. 2 shows the ring gear 48. The latter is mounted upstream of the securing ring 100 in the direction of the setting into place of the container and has an inner diameter that is greater than the outer diameter of the securing ring 100 in order to allow for the penetration of the container flange 28 into the securing ring 100.

(76) FIG. 6 shows the connection device from the interior of the cell, with the protective cover being shown with transparency.

(77) The securing ring 100 can be seen of which the sector gear 112 is engaged by the pinion 114 and the ring gear 48 is engaged by a pinion 52 coaxial to the pinion 114.

(78) The control ring 48 comprises a driving tooth 48.1 meshing with the pinion 52 which provides for its putting into rotation and sector gears intended to actuate the various means of the connection device. In the example shown, the sector gear 48.1 extends over only a portion of the periphery of the control ring 48, the angle on which extends the drive sector is determined in order to allow for the actuating of the various means B, C, D. According to a variant a drive sector could cover the entire periphery of the control ring 100.

(79) The control ring 48 is advantageously maintained axially and radially by rollers 54 which allow for the rotation of the ring gear 48 around the axial direction while still limiting friction.

(80) The second B, third C and fourth D means are arranged on the periphery of the ring gear 48 and are actuated successively by setting the ring into rotation.

(81) The second means B of securing the cell door 22 and the cover of the container 28 comprise an inter-door securing plate designated as 80.

(82) The inter-door securing plate 80 is mounted in rotation on the cell door 22. The locking of the cell door 22 and of the container cover 28 is obtained by a bayonet connection. In the example shown, the securing plate 80 comprises four lugs 82 radially protruding outwards and the cover 28 comprises a hollow imprint provided with four radially external notches in order to receive the lugs of the securing plate 80 and a peripheral groove that connects the notches. A relative rotation of the securing plate 80 and of the cover 26 provides an at least partial masking of the lugs of the securing plate 80 forming an axial abutment for the lugs 82 and an axial securing of the securing plate and of the cover

(83) The securing plate 80 is set into rotation by the actuating of the control ring 48. In the example shown, the second means B comprise a straight-toothed pinion 62 engaged by a first actuating sector gear 48.2 of the control ring 48, a bevel pinion 64 secured in rotation with the pinion 62. In the example shown, they are located at the two ends of the same axis. The bevel pinion 64 meshes with a bevel pinion 65 which forms the input of a chain of gears, with the gears designated as 66, 68, 70, 72, 74, 76, 77. The pinion 77 meshes with a sector gear or rack 78 secured in rotation with the inter-door securing plate 80 as can be seen in FIG. 6.

(84) The unit formed by the pinion 62, 64 and the chain of gears makes it possible to reduce the rotation torque of the handle and facilitate the manipulation by the operator.

(85) On FIGS. 13A and 13B, the chain of gears allowing for the rotation of the securing plate 80 is shown alone. The chain of gears is located in a cover 81 which is also shown on FIGS. 6-8 and 10, ensuring the sealed passage of the chain of gears between the outside and the inside of the cell. The cover comprises three parts 81.1, 81.2, 81.3 which are linked to each other in a sealed manner by means of seals 69.

(86) In the example shown, parts 81.1 and 81.3, so-called blocks are identical. Part 81.2 which is located between parts 81.1 and 81.3 is called arm.

(87) The linkages between block 81.1 and arm 81.2 and between block 81.2 and 81.3 allow for the opening of the door 22. Rotation is ensured by roller bearings, but bearing may be used instead of roller bearings.

(88) Chain of gears is located in block 81.1, the chain of gears controlling the securing plate 80. Opening means D is located in block 81.3.

(89) In the example shown, block 81.1 comprises a sleeve 81.11 surrounding the axis connecting gears 62 and 64.

(90) Block 81.3 also comprises a sleeve 81.31 (FIG. 13B).

(91) Arm 81.2 surrounds the axis connecting gears 76 and 77. Sleeves 81.11 and 81.21 pass through the cell flange and through the door respectively in a sealed manner, static seals are mounted between the sleeves 81.11, 81.31 and the cell flange and between the sleeve 81.21 and the door 22.

(92) According to a variant and in the specific case of device having a small diameter for which strength are reduced, the cover can have only one block and one arm, the opening means D being combined with the securing means B. In this case, block can be made in one piece with the cell flange. No seal is then required to carry out sealing between the block and the flange.

(93) The chain of gears comprises two biggest axes 67, 73 between gears 65 and 66 and between gears 72 and 74 respectively. According to a variant, these axes and the gears can be replaced by chain sprockets or by pulleys with belt system or chain system.

(94) A first phase of the rotation of the inter-door securing plate 80 provides the axial locking of the door 22 and of the cover 28 and a second phase of rotation of the securing plate 80 drives in rotation the cover 28 in relation to the container flange 26 and provides an unlocking of the cover 28 in relation to container flange 26.

(95) Particularly advantageously, the mechanism comprises means 118 for locking that prevent the detaching of the cell door 22 and of the cover 28 when the passage between the inside of the container and the inside of the cell is open, i.e. when the door and cover unit is in detached position from the cell and container flanges.

(96) The means 118 can be seen in FIG. 7 and as a cross-section in FIG. 9.

(97) The locking means 118 are arranged between the upstream surface of the cell door and the downstream surface of the plate 80.

(98) The locking means 118 comprise a finger 120 radially protruding from the plate 80 in a zone between two lugs of the plate 80. The finger 120 is able to be axially retracted inside the plate. An elastic means 122, for example a helical spring in the example shown, returns the finger outwards from the plate 80 upstream. The finger can be seen in FIG. 2.

(99) The locking means comprise a roller support 124, carrying the finger 120, which is arranged between the door 22 and the plate 80 and a roller 126 able to roll around an axis perpendicular to the longitudinal axis X.

(100) The locking means 118 also comprise a frame 128 fastened onto the plate 80 which carries an axis 130 parallel to the longitudinal axis X whereon is mounted and able to slide the roller support 124. The spring 122 is mounted in compression between the roller support 124 and the frame 128 around the axis 130.

(101) The locking means 118 also comprise a cam 132 formed by a ramp fastened onto the upstream surface of the cell door, with the cam 132 having the shape of an arc of circle centred on the longitudinal axis X. The locking means also comprise stops 134 located across from the ends of the ramp 132. In the example shown, the stops 134 are formed by rods parallel to the longitudinal axis and fastened onto the cell door.

(102) The operation of the locking means 118 is as follows.

(103) During the positioning of the container flange 26 into the securing ring 100, the lugs of the container cover 28 are placed between the lugs 82 of the securing plate 80, one of them comes into contact with the finger 120 and due to the axial displacement of the container pushes the finger 120 which penetrates into the plate 80 against the restoring force of the spring 122. The roller 126 is released from the cam 132 and from one of the stops 134.

(104) Another rotation of the ring gear 48 causes a rotation of the plate, the roller 126 is also driven in rotation and rolls on the cam 132 until the roller 126 is positioned in the bottom part of the cam 132 (FIG. 8).

(105) The finger has then pivoted enough to no longer be facing the lug 82 of the plate 80. However due to the restoring force of the spring 122, the finger is pushed back towards the exterior of the disc and forms a stop in rotation for the lug which is then blocked between the finger 120 and one of the stops 134.

(106) The third means C for maintaining the door of the cell closed against the cell flange 18 can be seen for example in FIG. 8 in closed position and in FIG. 10 in open position.

(107) The door 22 is locked in closed position on the cell flange 18 by means of a locking cam 84 which is fastened onto the inside surface of the cell door 22 and of locking roller 86. The locking roller 86 is mounted mobile in rotation on the cell flange 18 around an axis parallel to the axial direction X between a locked position wherein the locking roller 86 is in contact with the locking cam 84 and locks the door in closed position against the cell flange 18, and an unlocked position, wherein the locking roller 86 is separated from the locking cam, and allows for a disengagement of the cell door from the cell flange 18.

(108) The locking roller 86 is carried by a roller-holder of which an axial end comprises an actuating roller 88 which cooperates with a radial cam surface 48.3 of the toothed wheel 48.

(109) According to a variant, it could be provided that the locking roller-holder comprises a pinion meshing with a sector gear of the toothed wheel.

(110) Advantageously, in locked position, the locking cam 84 cooperates with safety means mounted on the inside surface of the door in order to detect the locked position of the cam 84. The third means D in order to open the door 22 and the cover 28 and as such allow for the sealed transfer between the container and the cell, can be seen in FIGS. 7 and 11.

(111) The means for opening D set into rotation the cell door 22 and the cover 28 secured to one another by the securing plate 80 around the hinge 30. In the example shown, the means D comprise a first straight-toothed pinion 90 meshing with a second sector gear 48.4 of the ring gear 48 a bevel pinion 92 secured in rotation with the pinion 90. In the example shown, they are located at the two ends of the same axis. The bevel pinion 92 meshes with a bevel pinion 94 coaxial to the axis of the hinge 30 and secure in rotation with the latter. As such the ring gear 48, by driving the pinion 90, causes a rotation of the bevel pinion 94 which drives the cell door 22 in rotation around its hinge 30 and allows for the transfer between the inside of the container and the inside of the cell.

(112) Seals are provided between the cover and the container flange, between the cell door and the cell flange and between the outer faces of the cell door and of the cover in such a way as to provide a sealed contact between the door 22 and the cover 28 and to provide a confining of these surfaces which are in contact with the outside environment when they are not in contact.

(113) The ring gear 48 is comprised of several actuating angular sectors, with each one controlling separate means. According to the angle of rotation of the ring gear, a pinion is engaged by the ring gear driving the given means. The means are not actuated simultaneously but successively and in an order given by the arrangement of the angular sectors in a given direction of rotation. In the example shown, the actuating sector gears are arranged in separate planes perpendicular to the longitudinal axis X, which are separate from the plane that contains the gear sector drive.

(114) A cycle for the putting into communication of the interior space of the container and of that of the cell thanks to the connection device according to the invention shall now be described, considering a vertical cell wall.

(115) The container flange 26, wherein is arranged the cover 28, is introduced into the securing ring 100, the lugs 32 of the container flange 26 penetrate into the imprints 104. One of the lugs drives the finger 120. Furthermore, two lugs 32 diametrically opposite come into contact with the actuating connecting rods 38, cause them to pivot in the clockwise direction and the pivoting of the locking connecting rods 40. The finger 42 blocks the locking connecting rods 40 in position. The container flange 26 is then maintained against the wall 14 of the cell. The operator can let go of the container.

(116) The operator then turns the crank 108 in the clockwise direction, which sets into rotation the securing ring 100 in the anti-clockwise direction, which is free to turn, then the locking connecting rods 40 have tipped, their ends 40.2 being released from the notches 102.3. The securing ring 100 rotates, the lugs 32 are then maintained by a bayonet connection thanks to the securing ring 100. The container flange 26 is then secured to the cell flange 18.

(117) Then, the operator again turns the crank 108 in the clockwise direction, which sets into rotation the ring gear 48 in the anti-clockwise direction, the sector gear 48.2 meshes with the pinion 52 which causes the rotation of the securing plate 80. The plate 80 then provides the securing of the cell door 22 and of the container cover 28. Simultaneously the roller 126 rolls on the ramp 132 until its bottom position and the finger 120 is pushed back towards the exterior of the plate 80 (FIG. 10), one of the lugs of the cover 28 is then blocked between a stop 134 and the finger 120. No rotation of the cover 28 in relation to the door is possible in the absence of manipulation of the locking plate.

(118) The operator again turns the crank 108 in a clockwise direction, the sector gear 48.2 moves away from the pinion 62 and the radial cam path encounters the actuating roller 88 causing a pivoting of the roller-holder and a separation of the locking roller 86 from the locking cam 84. The door 22 is then released from the cell flange 18.

(119) The operator again turns the crank 108 in the clockwise direction, the sector gear 48.4 meshes with the pinion, causing the rotation of the door 22 and of the cover 28 around the hinge 30.

(120) The passage between the inside of the cell and the inside of the container is then open as is shown in FIG. 11 (the cover 26 is not shown).

(121) In this position, the cover cannot be separated from the door due to the presence of the finger 120. As explained hereinabove, the movement of a lug of the cover 28 is limited by the finger 120 and a stop 134. The cover 26 therefore cannot pivot enough in relation to the door 22 in order to separate them. The retracting of the finger 120 is possible only by setting the securing plate 80 into rotation in the opposite direction, but this rotation in the opposite direction is possible only after closing of the access between the two spaces. Consequently, the separation of the cover and of the door is prevented when the passage between the cell and the container is open. As such there is no risk of pollution of the interior of one or the other of the spaces by the outer surfaces of the cell and of the container.

(122) The closing of the passage and the separation of the container from the cell is carried out according to the steps hereinabove in the reverse order. For this, the operator pivots the crank 108 in an anti-clockwise direction, causing: the putting back into place of the door 22 and of the cover 28 in their respective flange 18, 26, then the returning into position of the locking roller 86 in the locking cam 84, the rotation in the clockwise direction of the plate 80 which locks the cover 28 in the container flange 26 and the detaching of the door 22 and the cover 26, simultaneously the finger 120 penetrates into the plate 80 thanks to the cam 132, the securing ring 100 then pivots in the clockwise direction, releasing the lugs 32 from the container flange 22, finally the snap-fitting devices 34 are deactivated in such a way as to release the locking connecting rods 40. The container can then be removed from the securing ring.

(123) The connection device allows for a connection between a container and a cell, without rotation of the container, which simplifies the operations for the operator and allows for the manipulation of fragile objects contained in the container.

(124) The connection device can offer greater facility for cleaning since it can comprise no element inside the cell. The entire mechanism is located outside of the cell.

(125) The outside control offers greater handling for the operator.

(126) The connection device furthermore makes it possible to improve the rates of closing/opening per day, allowing for a gain in productivity, with all of the steps of transfer carried out by the manipulation of the outside crank or activation of the motor.

(127) It moreover has maintenance and repair that is facilitated due to its simple structure, all the more so when its actuating means are located outside of the cell. Moreover, the arrangement of the actuating means outside allow for a motorisation of the device in a very simple way. By arranging the actuating means outside of the cell, the latter is no longer in contact with the sterilising agent, which reduces the risks of damage and malfunction.

(128) In addition, safety is improved, since in the case of actuating by the outside, it is no longer required to access the inside of the cell by means of gloves mounted in a sealed manner through a wall of the cell in order to actuate the mechanism, or for maintenance.

(129) According to a variant, it can be considered that the securing ring 100 be set into rotation via the ring gear 48, the ring gear would then be the sole control member for all of the steps.