An apparatus comprising an inner ferrule and an outer ferrule. The inner ferrule comprises a plurality of engagement sections that define a plurality of gaps between the plurality of engagement sections. The outer ferrule is disposed around at least a portion of the inner ferrule. The outer ferrule comprises an engagement area mechanically joined to the plurality of engagement sections to join the inner ferrule to the outer ferrule.

A fluid connector for removably joining two lines includes a male element and a complementary female element, which each include a body defining an inner passage and an outer passage, a male drawer, which is axially movable inside the outer passage between an uncoupled position of the connector, where it tightly closes off a distal mouth of the outer passage, and a coupled position, where it does not oppose the passage of fluid in the mouth and wherein the male or female body delimits a connecting passage between the outer passage of the female element and the outer passage of the male element during the coupling of the elements and which connecting passage extends between at least one distal opening and at least one proximal opening, which each emerge in one or the other of the outer passages.

A magnetic quick connect for a fluid delivery system includes a male coupling member and a female coupling member. The male coupling member defines a first outer fluid communication path and includes a first magnetic material. A first inner member is disposed within the first outer fluid communication path and defines a first inner communication path. The female coupling member defines a second outer fluid communication path and includes a second magnetic material. A second inner member is disposed within the second outer fluid communication path and defines a second inner communication path. The male and female coupling members are detachably held together by an attractive force between the first and second magnetic materials such that the first and second outer communication paths are held in fluid communication, and the first and second inner communication paths are held in fluid communication.

A tube coupling component (4;6) serves for use in a tube coupling system and an irrigation system. The tube coupling component (4;6) comprises a male coupling part (12) opposite a respective female coupling part (11), or a first end fitting (33) opposite a respective second end fitting (34), which tube coupling component (4;6) has an interior pipe (13;31) that extends axially inside an exterior pipe (14;32), wherein the interior pipe (13;31) and the exterior pipe (14;32) are concentric.

A coaxial coupling 10 includes a female coupling half 50 and a male coupling half 130. The coupling 10 is used in a hydraulic circuit 100 that includes a multistage hydraulic pump 101 and a hydraulic machine 102. The coupling is used in the circuit 100 to connect components when the pump is running. The coupling halves have a disconnected configuration (FIG. 1), a connection initiation configuration (FIG. 2), and a fully connected configuration (FIG. 3). Coupling half 50 includes a manually actuated restrictor 1 that signals the pump 101 to move to a low flow condition independently of load demand from the machine 102 in the connection initiation configuration. This reduces the forces required to move the coupling halves from the connection initiation configuration to the fully connected configuration.

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 tube coupling component (4;6) serves for use in a tube coupling system and an irrigation system. The tube coupling component (4;6) comprises a male coupling part (12) opposite a respective female coupling part (11), or a first end fitting (33) opposite a respective second end fitting (34), which tube coupling component (4;6) has an interior pipe (13;31) that extends axially inside an exterior pipe (14;32), wherein the interior pipe (13;31) and the exterior pipe (14;32) are concentric.

A magnetic quick connect for a fluid delivery system includes a male coupling member and a female coupling member. The male coupling member defines a first outer fluid communication path and includes a first magnetic material. A first inner member is disposed within the first outer fluid communication path and defines a first inner communication path. The female coupling member defines a second outer fluid communication path and includes a second magnetic material. A second inner member is disposed within the second outer fluid communication path and defines a second inner communication path. The male and female coupling members are detachably held together by an attractive force between the first and second magnetic materials such that the first and second outer communication paths are held in fluid communication, and the first and second inner communication paths are held in fluid communication.

A method of sealing the interstice in double-walled pipe includes the steps of applying a first sealing piece to an inner pipe of the double-walled pipe, wherein the first sealing piece covers a portion of the circumference of the inner pipe; and applying a second sealing piece to the inner pipe of the double-walled pipe, wherein the second sealing piece covers the remainder of the circumference of the inner pipe. The method further includes the step of attaching the first sealing piece to the second sealing piece forming a sealer; wherein the sealer is disposed in an annular space located between the inner pipe and an outer pipe. A sealer configured to seal an opening between pipes in a double-walled pipe includes a first sealing piece having a rounded cross-section with an attachment portion configured to engage a corresponding attachment portion disposed on a second sealing piece.

A tube coupling system serves for providing annular flow through a flexible annular double lumen tube between fluid reservoir(s) and flexible connection pieces of an annular double lumen device. The tube coupling system has a first coupling component and a second coupling component and an end fitting system. The first coupling component that has a female coupling part and a male coupling part adapted for coupling to a proximal end of the flexible annular double lumen tube. The second coupling component has a second interior pipe that axially extends inside a second exterior pipe, a first end fitting adapted for coupling to at least the female coupling part of the first coupling component, and a second end fitting adapted for coupling to any of the flexible annular double lumen tube or the flexible connection pieces of an annular double lumen device.