Adapter suitable to connect a device for allowing compressed gas to pass through the adapter into an inflatable member, where the adapter comprises: —Means for attaching the adapter to a source of compressed gas, said means having a gas passage, and where the means for attaching the adapter is in gas communication with —A main housing, where the housing has an inner open-ended cavity, suitable to receive a valve body of the inflatable member, and where inside said open-ended cavity, a gas outlet is arranged, and further where means for releasably holding the valve body of the inflatable member is provided and further —A resilient gasket is provided surrounding the gas outlet, where in one end of the gasket towards the opening of the open-ended cavity is provided an engagement surface and in a lower section of the gasket opposite the engagement surface is provided a cavity, where the cavity is limited by an inner lip and an outer lip, where said inner lip is in sealing and sliding engagement with the gas outlet and the outer lip is in sealing and sliding engagement with the main housing, such that the cavity in the low-er end of the gasket creates a substantially gas tight chamber and where the gasket is further provided with a shoulder, and where a ridge is provided inside said open-ended cavity, where the open-ended cavity in a first cross-section perpendicular to the gas passage through the ridge has a smaller cross-sectional area of the gas passage than in a second cross-section adjacent the shoulder, such that the ridge limits the movement of the gasket in the gas passage's direction, and where the gas passage has a gas connection to the substantially gas tight chamber provided between the lower section of the gasket, and the housing.

Adapter suitable to connect a device for allowing compressed gas to pass through the adapter into an inflatable member, where the adapter comprises: —Means for attaching the adapter to a source of compressed gas, said means having a gas passage, and where the means for attaching the adapter is in gas communication with —A main housing, where the housing has an inner open-ended cavity, suitable to receive a valve body of the inflatable member, and where inside said open-ended cavity, a gas outlet is arranged, and further where means for releasably holding the valve body of the inflatable member is provided and further —A resilient gasket is provided surrounding the gas outlet, where in one end of the gasket towards the opening of the open-ended cavity is provided an engagement surface and in a lower section of the gasket opposite the engagement surface is provided a cavity, where the cavity is limited by an inner lip and an outer lip, where said inner lip is in sealing and sliding engagement with the gas outlet and the outer lip is in sealing and sliding engagement with the main housing, such that the cavity in the low-er end of the gasket creates a substantially gas tight chamber and where the gasket is further provided with a shoulder, and where a ridge is provided inside said open-ended cavity, where the open-ended cavity in a first cross-section perpendicular to the gas passage through the ridge has a smaller cross-sectional area of the gas passage than in a second cross-section adjacent the shoulder, such that the ridge limits the movement of the gasket in the gas passage's direction, and where the gas passage has a gas connection to the substantially gas tight chamber provided between the lower section of the gasket, and the housing.

A male element (10) for a fluid connection with a male body (12) including a tubular extension (20) and a crown (22) fixed around the tubular extension and having at least one radial recess opening onto an inner face (44) and onto an outer face of the crown (22). The male element comprises an integral ring (16) mounted around the crown, and for each radial recess, a locking element (14), movable between an inner position and an outer position, the outward movement of which is limited by the ring. Each radial recess is delimited by an inner wall (52) forming part of the crown and extending around a radial central axis of the radial recess. The ring has at least one longitudinal slot, which passes radially through the ring, and comprises a resiliently deformable end portion (112) with at least one inner tooth which is engaged in an outer groove, recessed in the crown.

A coil spring is disposed in a fluid passage between a cylindrical body and a valve element to urge the valve element toward a closed position. The coil spring comprises a valve support portion supporting the valve element, a secured portion secured to an inner peripheral surface of the fluid passage, an expanding-contracting portion extending from the secured portion, and a connecting portion between the expanding-contracting portion and the valve support portion. The connecting portion comprises a first portion curved so as to pass radially outward of an end winding portion of the expanding-contracting portion, a second portion passing through the center of the valve support portion, a third portion extending curvedly so as to overlap the first portion, and a fourth portion extending to the valve support portion. When the coil spring is compressed, the valve support portion is supported to the expanding-contracting portion 54 through the connecting portion.

A receiving unit of a coupling device for fluid lines, and the coupling device. The receiving unit comprises a closure element which fluidically seals the fluid flow channel in a closed position. The closure element is preloaded into the closed position using a spring element. The closure element comprises a perforation-free cylindrical portion. The entire spring element, in the release position of the closure element, is arranged within a region that is completely overlapped by the cylindrical portion along the entire longitudinal extent thereof, as viewed in a radial direction of the cylindrical portion.

A receiving unit of a coupling device for fluid lines, and the coupling device. The receiving unit comprises a closure element which fluidically seals the fluid flow channel in a closed position. The closure element is preloaded into the closed position using a spring element. The closure element comprises a perforation-free cylindrical portion. The entire spring element, in the release position of the closure element, is arranged within a region that is completely overlapped by the cylindrical portion along the entire longitudinal extent thereof, as viewed in a radial direction of the cylindrical portion.

A valve guide for a coupling including a circular, longitudinally extending portion, including a substantially circular channel extending therethrough; a ring portion; a plurality of ports radially disposed around a centerline of the valve guide; and one of more collar supports disposed radially about the circular, longitudinally extending portion. The valve guide comprises a unitary one-piece component. A male portion for a coupling that includes a valve guide with integral assembly support and a method for assembling a coupling assembly are also disclosed.

A valve guide for a coupling including a circular, longitudinally extending portion, including a substantially circular channel extending therethrough; a ring portion; a plurality of ports radially disposed around a centerline of the valve guide; and one of more collar supports disposed radially about the circular, longitudinally extending portion. The valve guide comprises a unitary one-piece component. A male portion for a coupling that includes a valve guide with integral assembly support and a method for assembling a coupling assembly are also disclosed.

This female element of a quick connector that connects to a male element and has a hollow body, which extends along an insertion axis and which delimits a receiving volume for the male element. Radial openings, formed in the body along a radial axis, open into the receiving volume. Each radial opening receives a latch, translatable in relation to the body along the corresponding radial axis, between a locked and an unlocked position. The female element has an actuating ring arranged about the body and translatable between a locked and an unlocked position. The ring has guide grooves, which interact with pins of each latch. The guide grooves associated with each latch are geometrically carried by a guide plane inclined in relation to the insertion axis so that each latch is driven between its locked and unlocked positions when the actuating ring is moved between its locked and unlocked positions.

The invention relates to a coupling 10 for transferring fluids, having a valve 30, the valve tappet 32 of which is coupled in terms of movement with a valve sleeve 31, which is pre-tensioned by spring force in the flow direction D of the fluid, and having a locking mechanism 40 for releasably locking the coupling 10 to a tank nipple 50, and a securing mechanism 60 for releasably blocking the closed valve 30, wherein the locking mechanism 40 and the securing mechanism 60 are coupled in terms of movement via a sliding sleeve 70 which is pre-tensioned by spring force against the flow direction D of the fluid, so that in a first control position A of the sliding sleeve 70, the locking mechanism 40 is unlocked and the valve 30 is closed, and in a second control position B of the sliding sleeve 70, the securing mechanism 60 unlocks the valve sleeve 31, so that the valve 30 is unblocked and at least partially opened, and the valve sleeve 31 can be moved subject to pressure against the flow direction D of the fluid, wherein the securing mechanism 60 locks the sliding sleeve and completely opens the valve 30.