A fluidic connection assembly and methods for quickly connecting or disconnecting a tube to a port by hand and without the use of tools. A body is adapted to receive a tube therethrough, and may have at least two sides which are hinged. Each of the hinged sides has corresponding latching portions or projections located near a lower end of the body. These projections are adapted to fit into a port or other fitting and be securely held in place. The assembly may include a tube extending through a body and through a spring located between the end of the body and the end of the tube, whereby the spring exerts a force directly or indirectly against the end of the tube and against the body, thus holding the tubing securely and sealingly engaged in the port when the assembly is connected. The body may further comprise an additional body or an adapter, and/or a cap and latch. A second spring may be used to push a projecting member into a groove or notch of an adapter when an end of the adapter is inserted into one end of the latch or the body. The fluidic connection assembly is useful in analytical instrument systems, such as for in vitro applications and/or in high pressure applications, among other things, and may be used in methods for connecting, or disconnecting, tubing or a fluidic connection assembly from a port or other fitting or connection.

A tube connector comprising a male portion having a male portion thread on an outer surface, a first tube having a first tube surface disposed at a seat angle (θ) of approximately 37° to a tube connector centerline, the male portion having a clearance engagement with the first tube, a nut having a clearance engagement with a second tube, the nut engagable with the male portion thread, the second tube having a second tube surface disposed at a seat angle (θ′) in the range of (θ′)=(θ+x)°, were x=+0° up to 1°, and the first tube surface compressed by the nut and the male portion against the second tube surface for a sealing engagement between the first tube surface and the second tube surface.

Various novel connectors are provided. In one embodiment, the connector includes a collar configured to receive first and second components. In this embodiment, the connector may also include a load ring configured to be received in a groove of the second component and to move into and out of engagement with the collar when the second component is received by the collar. The connector of this illustrative embodiment may also include a cotter configured for installation to the second component and to inhibit disengagement of the load ring from the collar. In some embodiments, engagement of the load ring and the collar effects securing of the first and second components to one another. Other devices, systems, and methods related to connectors are also disclosed.

In a method for influencing the thread geometry of an internal thread of a first component of an injection device for internal combustion engines, which is provided for carrying high-pressure fluid, wherein the first component has a tubular end portion and an internal thread is formed on the interior surface of the tubular end portion, and a second component having an exterior surface on at least a portion thereof so as to be received in the tubular end portion of the first component wherein the exterior surface is threaded so said second component can be screwed and clamped against a support surface of the first component, and wherein the tubular end portion on the external side is acted upon by a radial compression force allowing a plastic deformation. The tubular end portion is transformed thereby in such a manner that the internal thread obtains an inner diameter (D) continuously decreasing towards the free end.

A connector element is disclosed in accordance with one embodiment of the present disclosure. The connector element is for coupling a first tubular element to a second tubular element, wherein the second tubular element is having an end configuration selected from a threaded end configuration and a non-threaded plain configuration. The connector element is having a threaded element complementary to the threads of the threaded end configuration of the second tubular element, a tube lock that is co-axially arranged with respect to and disposed downstream of the threaded element for holding the second tubular element, and a guide element that is co-axially arranged with respect to and disposed down-stream of the tube lock for guiding the second tubular element.

A pipeline connection device includes a first connecting member, a second connecting member and a sealing member. The first connecting member includes a first channel and an abutting portion. The second connecting member includes a second channel and a first groove portion. The first groove portion includes a first side wall and a first receiving groove to receive the sealing member. At least part of the abutting portion is received in the first receiving groove and abuts against the sealing element. A first gap not greater than 0.3 mm is provided between the abutting portion and the first side wall; or the first connecting member and the second connecting member include at most two annular friction surfaces. As a result, mutual jamming of the first connecting member and the second connecting member can be avoided. Besides, a pipeline adapting assembly having the pipeline connection device is disclosed.

A system and method for joining tubing of different sizes including a first connector including a first and a second projection and a lumen extending therethrough. The first projection has an outer diameter larger than an outer diameter of the second projection. A first coupling includes a first and second coupling member. The first coupling member has a first body including a first aperture extending therethrough along a length thereof, the first body including threads. The second coupling member includes a second body having a second aperture extending therethrough along a length thereof. The second body includes threads complimentary with the threads of the first coupling member permitting the first and second member to be threadedly engaged, and the first aperture has a diameter larger than a diameter of the second aperture.

A connector for connecting a fluid pipeline includes an inner socket, which is a columnar body having a channel, and both ends defined as a first end and a second end. The inner socket has a guide portion, an attaching portion, an anti-leak portion and a connecting portion sequentially arranged on the outer side from the first end to the second end; the first end is socketed into an end of a tube by the guide portion; the attaching portion is a spiral concave groove on an outer side of the inner socket for attaching an inner side of the tube; the anti-leak portion is between an end of the tube and the connecting portion for sealing an opening of the tube; and the connecting portion is between the anti-leak portion and the second end and exposed from the tube for connecting another connecting portion of another connector.

The invention relates to a coupling (110) for connecting a compressed air source to an air motor, comprising a housing (116) with a housing channel leading to a compressed air connection (118) and a piston (124) axially adjustable in the housing channel (122) and force-loaded by a spring element (126) having a piston channel (132) which, when the coupling is connected to the air motor, merges into a connecting channel (138) present in a pin element (140) of the air motor. The piston can be adjusted in the direction of the compressed air connection by means of the pin element against the force applied by the spring element. The spring element (126) runs between the compressed air connection (118) and the compressed air connection side area of the piston (124). Radial openings (34, 36, 134, 136), through which compressed air flows, extend from the compressed air connection side area of the piston channel (132). At least one exhaust air channel (160, 162) connected to the air motor extends in the wall of the housing (116) and passes through the wall in the end face of the housing.

A gland includes an annular ring, the annular ring defining a gland bore, the gland bore defining a gland axis extending through the annular ring; and a joint restraint assembly, the joint restraint assembly including a restraint base, the restraint base attached to the annular ring, the restraint base defining a restraint pocket, the restraint base including a structural rail; a gripper, the gripper disposed within the restraint pocket and configured to move in the restraint pocket; a spring biasing the gripper to move inwards towards the gland axis; and a cover contacting at least a portion of the restraint base.