The invention relates to a fluid drain plug (10) for a fluid reservoir (50) with a drain hole (51), the plug having an extension in an axial direction (A) and comprising a body part (16) rotationally insertable into the drain hole (51), the body part having a proximal axial end (15), a distal axial end (17) and a substantially circular cross section with an outer surface (18), wherein the body part comprises a drain channel (92) having an inlet (91) located at the distal axial end and an outlet opening (94) disposed on the outer surface (18), the body part further comprising a bayonet-type connection slot (40) for accommodating a part of a radial projection (52) of a circumferential surface surrounding the drain hole (51), the bayonet-type connection slot being disposed on the outer surface and comprising an entrance (40a) at the distal axial end, a first path (41) and a second path (42), the first path (41) extending from the entrance, in the axial direction (A) and in one circumferential direction (C), to a first path terminal portion (70), wherein the first path terminal portion (70) is adapted to accommodate the radial projection (52), and the second path (42) extending from the first path terminal portion, in the axial direction (A) and in an opposite direction to the one circumferential direction (C), to a second path terminal portion (72), wherein the second path terminal portion (72) is adapted to accommodate the radial projection.

The invention is a device for releasing and disconnecting a fitting body off of a pipe, which is held with a gripping ring that holds the pipe in fixed position inside the fitting body. Particularly, the device is integrated into valves for disconnecting domestic valves installed over pipes, which are fixed to and extending out of walls. The essential parts of the device are a nut, a pushing sleeve matching into the nut and one or more spiral tracks that couple with bump(s)/ball(s) on the surfaces of the nut and sleeve. This coupling enables radial movement of the nut in a defined spiral forward direction over the fitting body and pushes the sleeve into the fitting body for releasing the pipe off of the gripping ring.

The invention is a device for releasing and disconnecting a fitting body off of a pipe, which is held with a gripping ring that holds the pipe in fixed position inside the fitting body. Particularly, the device is integrated into valves for disconnecting domestic valves installed over pipes, which are fixed to and extending out of walls. The essential parts of the device are a nut, a pushing sleeve matching into the nut and one or more spiral tracks that couple with bump(s)/ball(s) on the surfaces of the nut and sleeve. This coupling enables radial movement of the nut in a defined spiral forward direction over the fitting body and pushes the sleeve into the fitting body for releasing the pipe off of the gripping ring.

A connector for circuit elements of hydraulic or pneumatic systems, comprising: a first connecting body (10) extending along an axis (X); a second connecting body (20) extending along an axis (Y); wherein the first connecting body (10) and the second connecting body (20) can be installed on respective portions of circuit elements and are configured to provide a reversible fluid connection between the circuit elements in which the connector comprises: a first coupling member comprising a male tubular portion on the first connecting body (10) and a respective female tubular portion (23) on the second connecting body (20) to realize a fluid sealing connection by inserting the male tubular portion into a cavity of the female tubular portion (23) configured to guide the male tubular portion; a second coupling member comprising at least one protuberance (14) on an outer surface (11) of the first connecting body (10) and a respective groove (24) on the second connecting body (20) for making a mechanical reversible connection between the first connecting body (10) and the second connecting body (20) in which the protuberance (14) is configured to fit into the groove (24) and prevent an axial extraction between the first connecting body (10) and the second connecting body (20); a third coupling member comprising on the first connecting body (10) at least one flexible tab (15) having a projection (16) on the outer surface (11) and an opening on an external surface (21) of the second connecting body (20) suitable to contain the projection (16) to prevent a relative rotation between the first connecting body (10) and the second connecting body (20) around the respective development axes (X, Y).

A connector for circuit elements of hydraulic or pneumatic systems, comprising: a first connecting body (10) extending along an axis (X); a second connecting body (20) extending along an axis (Y); wherein the first connecting body (10) and the second connecting body (20) can be installed on respective portions of circuit elements and are configured to provide a reversible fluid connection between the circuit elements in which the connector comprises: a first coupling member comprising a male tubular portion on the first connecting body (10) and a respective female tubular portion (23) on the second connecting body (20) to realize a fluid sealing connection by inserting the male tubular portion into a cavity of the female tubular portion (23) configured to guide the male tubular portion; a second coupling member comprising at least one protuberance (14) on an outer surface (11) of the first connecting body (10) and a respective groove (24) on the second connecting body (20) for making a mechanical reversible connection between the first connecting body (10) and the second connecting body (20) in which the protuberance (14) is configured to fit into the groove (24) and prevent an axial extraction between the first connecting body (10) and the second connecting body (20); a third coupling member comprising on the first connecting body (10) at least one flexible tab (15) having a projection (16) on the outer surface (11) and an opening on an external surface (21) of the second connecting body (20) suitable to contain the projection (16) to prevent a relative rotation between the first connecting body (10) and the second connecting body (20) around the respective development axes (X, Y).

A fluid coupling (R) comprising a male element (A) and a female element, a ring delimiting an inner channel of the female element (B), and a piston slidably mounted with respect to the ring (28) between a closed position and an open position of the inner channel. Between a disconnected configuration of the coupling and the connected configuration, the ring is moved rotationally with respect to the female body and the ring is held longitudinally in the female body, the piston is moved longitudinally from its closed position to its open position. The male body comprises an outer body and an inner body, the inner body delimiting an inner duct of the male element (A). During connecting, the outer body and the ring are rotationally fixed around the central longitudinal axis. In the connected configuration, the outer body and the ring are rotationally fixed. During connecting and in the connected configuration, the outer body and the inner body are free to rotate but unable to move in translation. The female element (B) comprises at least one locking device (45) movable between a position locking the rotation of the ring, and a release position, and in the disconnected configuration, the locking device (45) does not prevent the rotation of the ring.

A shower nozzle assembly includes a shower nozzle, a nozzle attachment, and a bayonet connector. The shower nozzle has a water inlet opening and a water outlet part spaced from the water inlet opening, with the water outlet opening being configured to direct a flow of water out of the shower nozzle. The nozzle attachment has a through bore configured to receive the water outlet part therein. The bayonet connection is operative to secure the nozzle attachment to the shower nozzle, and includes a radial projection and a female bayonet receptor part configured to receive the radial projection therein to secure the shower nozzle to the nozzle attachment.

A shower nozzle assembly includes a shower nozzle, a nozzle attachment, and a bayonet connector. The shower nozzle has a water inlet opening and a water outlet part spaced from the water inlet opening, with the water outlet opening being configured to direct a flow of water out of the shower nozzle. The nozzle attachment has a through bore configured to receive the water outlet part therein. The bayonet connection is operative to secure the nozzle attachment to the shower nozzle, and includes a radial projection and a female bayonet receptor part configured to receive the radial projection therein to secure the shower nozzle to the nozzle attachment.

Quick coupling device 1 for transferring liquid for an aircraft, comprising a female member 7 configured to be connected to a first reservoir, said female member 7 forming a passage and comprising a cylindrical portion 13 and a radial portion 14, a male member 2 configured to be connected to a second reservoir, said male member 2 forming a passage, slidably mounted in a liquid-tight manner in the female member 7 and comprising a cylindrical portion 3 and a radial portion 4, and a member 40 for locking the male member 2 in the female member 7, the locking member 40 being disposed between the radial portion 14 of the female member 7 and the radial portion 4 of the male member 2, the locking member 40 surrounding the male member 2 and leaving a limited sliding extent for the male member 2 with respect to the female member 7, engaging with the female member 7 in the locked position and releasing the female member 7 in the unlocked position, the locking member 40 comprising an axial blocking lock that can be actuated by an axial then rotating movement and that can be released by an axial then rotating movement, and a rotation brake, the lock and the brake being active in the locked position.

Quick coupling device 1 for transferring liquid for an aircraft, comprising a female member 7 configured to be connected to a first reservoir, said female member 7 forming a passage and comprising a cylindrical portion 13 and a radial portion 14, a male member 2 configured to be connected to a second reservoir, said male member 2 forming a passage, slidably mounted in a liquid-tight manner in the female member 7 and comprising a cylindrical portion 3 and a radial portion 4, and a member 40 for locking the male member 2 in the female member 7, the locking member 40 being disposed between the radial portion 14 of the female member 7 and the radial portion 4 of the male member 2, the locking member 40 surrounding the male member 2 and leaving a limited sliding extent for the male member 2 with respect to the female member 7, engaging with the female member 7 in the locked position and releasing the female member 7 in the unlocked position, the locking member 40 comprising an axial blocking lock that can be actuated by an axial then rotating movement and that can be released by an axial then rotating movement, and a rotation brake, the lock and the brake being active in the locked position.