Disclosed herein are embodiments of an oxygen quick connect device and method of using the same, the quick connect device includes a female coupling that has a first end and second end and a bore extending longitudinally through the first and second ends and further includes a biased plunger disposed within the bore of the female coupling and configured to reciprocate within, a seal member disposed on the plunger and configured to seal at a location on the bore of the female coupling, a catch device disposed at a second end of the female coupling body, and mechanism for connecting the female coupling to an oxygen supply source. The device also includes a male insert that has a first end and a second end and a first bore extending longitudinally through the first and second ends and groove for engaging with the catch device.

A female fluid connection element (5), configured to be coupled with a male element (4). A female body (21), which has an insertion channel (27) of the male element (4); locking elements (31) movable between positions; and a maneuvering ring (71) with an inner sleeve (75) for driving the locking element (31) to their proximal position. In order to have a small bulk and to offer particularly easy and reliable locking and unlocking, the female element (5) has a return plunger (33), returning the locking elements (31) toward their distal position, and a resilient member (43), exerting a return force to bring the return plunger (33) back toward a forward position. By being moved toward its withdrawn position, the maneuvering ring (71) drives the return plunger (33) toward a rear position, such that it does not exert a return force on the locking elements (31).

A method for selectively coupling or uncoupling a coupling with a release, arranged between the supply conduit and a cylinder, on the basis of pressure in a supply conduit. The method includes providing an operating pressure prevailing in the supply conduit in order to provide hydraulic liquid to the cylinder on the basis thereof, and providing an uncoupling pressure prevailing in the supply conduit for the purpose of activating shut-off valves in the supply conduit and on the cylinder, and activating a release which uncouples the coupling. A coupling for respectively coupling and uncoupling a supply conduit which is connected to the coupling to/from a cylinder, as well as to an assembly including a pump, a cylinder, a supply conduit between the pump and the cylinder, and such a coupling.

A method for selectively coupling or uncoupling a coupling with a release, arranged between the supply conduit and a cylinder, on the basis of pressure in a supply conduit. The method includes providing an operating pressure prevailing in the supply conduit in order to provide hydraulic liquid to the cylinder on the basis thereof, and providing an uncoupling pressure prevailing in the supply conduit for the purpose of activating shut-off valves in the supply conduit and on the cylinder, and activating a release which uncouples the coupling. A coupling for respectively coupling and uncoupling a supply conduit which is connected to the coupling to/from a cylinder, as well as to an assembly including a pump, a cylinder, a supply conduit between the pump and the cylinder, and such a coupling.

A disconnect assembly for operationally attaching a hose or other fluid conduit to a fluid inlet, and selectively decoupling the hose or conduit from the fluid inlet. In a first locked position, a fluid pressure seal is formed permitting pressurized flow of fluids through the disconnect assembly. In a second unlocked position, the hose or other fluid conduit can be quickly, safely and efficiently decoupled from the disconnect assembly such as, for example, during an emergency or unforeseen crisis. Following such decoupling, fluid is automatically contained and prevented from discharging into a surrounding environment.

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.

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.

A pipe connector for connecting with an additional pipe connector includes a first leak-proof pipe, a first sleeve, at least one clamping element and a restricting structure. The first sleeve covers the first leak-proof pipe and allows the first leak-proof pipe to relatively slide therein. The clamping element and the restricting structure are disposed on the first sleeve. The restricting structure is capable of driving the clamping element to clamp or release the additional pipe connector at different positions.

A coupling arrangement for a hydraulic device, in particular for a brake hose of a hydraulic brake of a vehicle. The coupling arrangement includes first and second coupling components, and the first and second coupling components can be transferred from an uncoupled state into a coupled state. The first coupling component has a hydraulic chamber which is prefilled with a first hydraulic liquid, and the second coupling component has a hydraulic cylinder which is prefilled with a second hydraulic liquid. The hydraulic chamber and the hydraulic cylinder are fluidically connected to one another in the coupled, a first flow opening is incorporated in the hydraulic chamber, and the first coupling component has a first sealing device which closes the first flow opening in a flow-tight manner in the uncoupled state and frees it in the coupled state.

A coupling arrangement for a hydraulic device, in particular for a brake hose of a hydraulic brake of a vehicle. The coupling arrangement includes first and second coupling components, and the first and second coupling components can be transferred from an uncoupled state into a coupled state. The first coupling component has a hydraulic chamber which is prefilled with a first hydraulic liquid, and the second coupling component has a hydraulic cylinder which is prefilled with a second hydraulic liquid. The hydraulic chamber and the hydraulic cylinder are fluidically connected to one another in the coupled, a first flow opening is incorporated in the hydraulic chamber, and the first coupling component has a first sealing device which closes the first flow opening in a flow-tight manner in the uncoupled state and frees it in the coupled state.