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.

A self-contained breathing connector apparatus, includes a manifold having a manifold inlet, a first manifold outlet and a second manifold outlet, an inlet connector coupled to the manifold inlet, a first outlet connector coupled to the first manifold outlet, and a second outlet connector coupled to the second manifold outlet. The first outlet connector has a first valve and the second outlet connector has a second valve. The first manifold outlet includes a first valve housing for accommodating at least part of the first valve of the first outlet connector, and the second manifold outlet includes a second valve housing for accommodating at least part of the second valve of the second outlet connector.

A coupling includes a socket housing that receives a plug. A plunger operates as a fluid valve and side orifices in the plunger allow fluid flow therethrough and is longitudinally movable from a forward sealed position where a sealing ring is in sealed engagement with a fluid channel to prevent fluid flow, and a retracted, unsealed position engaging a connected plug allowing fluid flow into the tubular plunger via the side orifices into the fluid channel. A plunger spring as a preferred wave spring engages the first end of the plunger and biases the plunger into the forward sealed position. First and second conical gaskets at the plunger spring allow the plunger spring as a preferred wave spring, plunger, and any connected plug to rotate within the socket housing and minimize torsion forces and stress on the plunger spring and within the socket housing.

A coupling includes a socket housing that receives a plug. A plunger operates as a fluid valve and side orifices in the plunger allow fluid flow therethrough and is longitudinally movable from a forward sealed position where a sealing ring is in sealed engagement with a fluid channel to prevent fluid flow, and a retracted, unsealed position engaging a connected plug allowing fluid flow into the tubular plunger via the side orifices into the fluid channel. A plunger spring as a preferred wave spring engages the first end of the plunger and biases the plunger into the forward sealed position. First and second conical gaskets at the plunger spring allow the plunger spring as a preferred wave spring, plunger, and any connected plug to rotate within the socket housing and minimize torsion forces and stress on the plunger spring and within the socket housing.

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 quick coupler assembly includes inlet and outer valve parts axially spaced inside a housing unit. The inlet valve part has an inlet chamber. A quick release locking sleeve is sleeved on the housing unit to control locking elements for engaging/disengaging a pipe connector inserted into the outlet valve part. An inner slide sleeve sleeves around the inlet valve part in the housing unit and has a control chamber around the inlet valve part to communicate the inlet chamber through radial passage holes. An outer operating sleeve extends around the housing unit to move the inner slide sleeve relative to the inlet valve part, and is able to abut and immobilize the quick release locking sleeve during passage of fluid.

This document describes devices and methods for reducing liquid spillage, such as fluid coupling devices that include one or more apertures that reduce spillage when the fluid coupling devices are disconnected. In some embodiments, the one or more apertures are designed with features to increase a level of acceleration that liquid within an internal volume of the fluid coupling devices would need to be exposed to in order to spill from the internal volume via the one or more apertures.

This document describes devices and methods for reducing liquid spillage, such as fluid coupling devices that include one or more apertures that reduce spillage when the fluid coupling devices are disconnected. In some embodiments, the one or more apertures are designed with features to increase a level of acceleration that liquid within an internal volume of the fluid coupling devices would need to be exposed to in order to spill from the internal volume via the one or more apertures.

An example wire ring is configured as a partial polygon. The partial polygon has a plurality of curved sections interposed between a plurality of straight sections. The wire ring is configured to contact a base of an annular groove of an external component of a valve at multiple contact points. The wire ring is also configured to contact a respective base of a respective annular groove of an internal component of the valve disposed, at least partially, within the external component at multiple respective contact points.