Quick coupling including casing defining longitudinal axis, outlet and inlet, to receive at the inlet at least part of external connector to fluidity connect external connector and outlet, shutter housed within casing to translate along longitudinal axis in opposition to opposing element, housing at least part of external connector and including retainer to lock at least part of external connector within shutter in at least one position along longitudinal axis, controller accessible from outside and including first slider housed within casing to translate along locking direction skewed relative to longitudinal axis in opposition to second opposing element, to house at least part of the shutter and including lock to lock the shutter within first slider in position along locking direction, and safety to lock shutter when subjected to pressures above predetermined threshold by fluid present within coupling, wherein the shutter locks external connector at least when safety locks shutter.

The invention relates to a coupling device (1) comprising a tubular body (2) defining a channel (3) having successively along an axis a first segment (31) for receiving an endpiece (1000) and a second segment (32) in which a valve member (8) is mounted to be axially movable under thrust from the endpiece (1000) from a closed position closing a seat (7) that extends between the first segment (31) and the second segment (32), towards a disengaged position disengaging the seat (7), the first segment (31) being provided with a housing (10) in which a latch (11) is movably mounted to move transversely relative to the channel (3) between an unlocking position and a locking position into which the latch (11) is urged by a spring (9), the latch (11) being provided with a transverse bore (111) enabling the endpiece (1000) to pass through the latch (11) to push against the valve member (8), a first step (112) and a second step (113) projecting into the bore (111) in axially offset positions in such a manner that, when the latch (11) is in the locking position, the first step (112) retains the endpiece (1000) in a pushed-in position holding the valve member (8) in its disengaged position, and when the latch (11) is in the unlocking position, the second step (113) retains the endpiece (1000) in an intermediate position leaving the valve member (8) in its closed position, thereby enabling the endpiece (1000) to be purged.

The invention relates to a coupling device (1) comprising a tubular body (2) defining a channel (3) having successively along an axis a first segment (31) for receiving an endpiece (1000) and a second segment (32) in which a valve member (8) is mounted to be axially movable under thrust from the endpiece (1000) from a closed position closing a seat (7) that extends between the first segment (31) and the second segment (32), towards a disengaged position disengaging the seat (7), the first segment (31) being provided with a housing (10) in which a latch (11) is movably mounted to move transversely relative to the channel (3) between an unlocking position and a locking position into which the latch (11) is urged by a spring (9), the latch (11) being provided with a transverse bore (111) enabling the endpiece (1000) to pass through the latch (11) to push against the valve member (8), a first step (112) and a second step (113) projecting into the bore (111) in axially offset positions in such a manner that, when the latch (11) is in the locking position, the first step (112) retains the endpiece (1000) in a pushed-in position holding the valve member (8) in its disengaged position, and when the latch (11) is in the unlocking position, the second step (113) retains the endpiece (1000) in an intermediate position leaving the valve member (8) in its closed position, thereby enabling the endpiece (1000) to be purged.

A quick release coupling includes male and female connector assemblies releasably secured together. The male connector assembly includes two parallel male connectors and the female connector assembly includes two parallel female connectors. A sleeve assembly is releasably connected to one ends of the female connectors. A plunger assembly is provided in each of the sleeve assembly and female connector. A sleeving assembly is provided on each of the female connector and the sleeve assembly. The parallel female connectors can be disconnected from the parallel male connectors or connected together at the same time. After the female connectors have disengaged from the male connectors, leakproof arrangements in the female connector assembly act to prevent water in the female connector assembly from leaking.

Methods and apparatus are disclosed for a coupling nozzle for cryogenic fluid. An example nozzle includes a flow body defining a conduit. The flow body is configured to permit cryogenic fluid to flow through the conduit. The nozzle includes a mounting ring through which the flow body slidably extends and a bushing fixedly positioned adjacent the mounting ring. The bushing slidably receives the flow body in a keyed manner to prevent rotation of the flow body. The nozzle includes a flow control assembly at least partially disposed in the conduit of the flow body. The flow control assembly is configured to permit the cryogenic fluid to flow through the flow body in an open position and prevent the cryogenic fluid from flowing through the flow body in a closed position.

The present invention provides a socket and a pipe joint which facilitate coupling and uncoupling of the socket and a plug and which can prevent the plug from jumping out of the socket in the uncoupling. In a socket 10 of the present invention, fluid in a built-in plug part 22 is released to the outside via communication holes 40 of a second base portion 18 and a through hole 51 of a third base portion 19 in a semi-inserted state. Accordingly, the pressure in a hole portion 34 does not become excessively high and an engaged part 42 is not unexpectedly pushed upward. Thus, an engagement portion 38 and a second engaged portion 26 can surely engage with each other. Hence, the plug 12 can be prevented from jumping out toward the front end side in the semi-inserted state.

A dispensing fitment assembly includes a fitment assembly and a dispensing probe. The fitment assembly includes a fitment housing and a plug. The fitment housing is configured to operatively couple to a container opening of a fluid container. The plug is positioned within an interior portion of the fitment housing. The plug is slidingly movable between an open and closed position. Engagement between the dispensing probe and the interior surface of the plug is configured to move the plug from the closed position to the open position. Disengagement between the dispensing probe and the interior surface of the plug is configured to move the plug from the open to closed position.

A universal quick connector comprising a bolt body, a connector hub, a hub outer sleeve and a connector valve core. Rear end of the connector hub is in threaded connection with front end of the bolt body, and the connector valve core is movably arranged in the connector hub. Inner wall of front end of the connector valve core is provided with a first and a second annular grooves. A first and a second sealing rings are embedded in the first and second annular grooves. Front end and rear end of the first annular groove is provided with a first and a second annular step surface. The first and second annular step surfaces extend to sidewall of the first annular groove. An annular step is formed at rear end of the second annular step surface. The present disclosure has a simple structure and may be quickly connected with various plugs.

A dispensing fitment assembly includes a fitment assembly and a dispensing probe. The fitment assembly includes a fitment housing and a plug. The fitment housing is configured to operatively couple to a container opening of a fluid container. The plug is positioned within an interior portion of the fitment housing. The plug is slidingly movable between an open and closed position. Engagement between the dispensing probe and the interior surface of the plug is configured to move the plug from the closed position to the open position. Disengagement between the dispensing probe and the interior surface of the plug is configured to move the plug from the open to closed position.

A valve fitting includes a fitting body defining a fitting passageway, supply and working ports in fluid communication with the fitting passageway, a supply port coupler operable to connect the supply port with an associated feed port coupler providing a pressurized fluid, a working port coupler operable to connect the working port with an associated tire of a tire assembly of an associated work vehicle, a supply valve moveable in the fitting passageway between a first position closing the fitting passageway from the supply port and a second position opening the fitting passageway to the supply port, a biasing assembly biasing the supply valve towards the first position, and an actuator assembly comprising an actuator member operable to urge the supply valve towards the second position against the bias of the biasing assembly in response to the associated feed port coupler being connected with the supply port coupler.