A fluid connector that connects a first fluid system with a fluid port of a second fluid system for transferring fluids, including gaseous or liquid fluids, between the first and second fluid systems. The fluid connector can be used with differently configured, non-matching threaded fluid ports and allow for misalignment/tipping of the fluid connector to maintain a seal with the fluid port.

A refueling adapter configured for permitting a vehicle having a twist-lock coupling-style fuel receiver to be fueled from a fuel source having a dry-break coupling-style fuel dispenser. The refueling adapter having a body portion and a mating assembly. The body portion has a first end and second end. The first end of the body portion is configured for dry-break coupling with a fuel dispenser. The second end of the body portion is configured for rotatable engagement with the mating assembly. The mating assembly is configured for engagement with a twist-lock coupling-style fuel receiver.

A refueling adapter configured for permitting a vehicle having a twist-lock coupling-style fuel receiver to be fueled from a fuel source having a dry-break coupling-style fuel dispenser. The refueling adapter having a body portion and a mating assembly. The body portion has a first end and second end. The first end of the body portion is configured for dry-break coupling with a fuel dispenser. The second end of the body portion is configured for rotatable engagement with the mating assembly. The mating assembly is configured for engagement with a twist-lock coupling-style fuel receiver.

A plumbing fitting couplable with a free-end portion of a pipe. The fitting has a chamber with an opening and an interior chamber wall with a circumferentially extending chamber groove, and an end bushing with an interior opening sized to receive the pipe free-end portion and an exterior wall portion having an outwardly projecting, circumferentially extending locking member within the chamber groove to resist movement of the end bushing out of the first chamber opening. A seal and gripper ring within the chamber seal with and releasably grip the pipe free-end portion. The end bushing interior opening has an end bushing interior wall portion sized to be engaged by the free-end portion of the pipe when within the end bushing interior opening to resist disengagement of the locking member from the chamber groove while the free-end portion of the pipe is within the end bushing interior opening.

An extraction device for discharging a mixed fluid, in particular containing feces, from a collecting tank of a rail vehicle comprises a housing having a mixed fluid inlet and a mixed fluid outlet, a flow passage which extends in the housing between the inlet and the outlet, a retaining latch mounted to the housing and adapted to cooperate with a corresponding recess on the collecting tank and is pivotably reciprocal between a locked position and an unlocked position, a shut-off member reciprocable between a release position and a blocking position, and a handling means or actuator mounted to the housing for actuation of the shut-off member. The handling means is operatively connected to the retaining latch in such a way that upon the movement of the retaining latch into the unlocked position the shut-off member is put into the blocking position.

A one-touch high-pressure fluid fitting using a spring, in which the spring is used to press a sealing ring and simultaneously elastically support an inward inclined surface of a fitting cap, and the fitting cap is expanded upon unfastening so as to maintain an internal airtightness of a fitting body and allow a detachable structure between the fitting body and the fitting cap to be smoothly implemented.

A one-touch high-pressure fluid fitting using a spring, in which the spring is used to press a sealing ring and simultaneously elastically support an inward inclined surface of a fitting cap, and the fitting cap is expanded upon unfastening so as to maintain an internal airtightness of a fitting body and allow a detachable structure between the fitting body and the fitting cap to be smoothly implemented.

A rapid-connect coupler includes: an end fitting for conveying a fluid stream; a probe for conveying the fluid stream; a valve configured to occupy a closed position blocking fluid communication between the probe and the end fitting and an open position enabling fluid communication between the probe and the end fitting; a handle configured to actuate the valve between the closed and open positions; a sleeve moveable between a first sleeve position and a second sleeve position. The sleeve, in the first sleeve position, is configured to prevent the handle from actuating the valve from the closed position to the open position.

A rapid-connect coupler includes: an end fitting for conveying a fluid stream; a probe for conveying the fluid stream; a valve configured to occupy a closed position blocking fluid communication between the probe and the end fitting and an open position enabling fluid communication between the probe and the end fitting; a handle configured to actuate the valve between the closed and open positions; a sleeve moveable between a first sleeve position and a second sleeve position. The sleeve, in the first sleeve position, is configured to prevent the handle from actuating the valve from the closed position to the open position.

A push-to-connect and quick-release coupler can be provided. In an example, the coupler can be used with or coupled to a fire extinguisher nozzle. The coupler can include a socket body and an automatic locking assembly. In an example, the locking assembly can include a collar movably coupled with the socket body, and a movable locking element. In a locked configuration, a fire extinguisher nozzle can be retained in the socket body, and the collar can be disposed in a first position, and the locking element can be biased by the collar toward the plug portion of the fire extinguisher nozzle. In a released or unlocked configuration, the nozzle can be removable from the socket body, the collar can be disposed in a second position, and the locking element can be unbiased by the collar.