A coupling for use with comestible products having a first body with a first flow path extending therethrough and a second body with a second flow path extending therethrough. The first and second bodies are configured for coupling together such that the first and second flow paths form a continuous flow path through the coupling. The coupling further comprises a first valve member actuable between an open position, wherein product can pass through the first flow path, and a closed position, wherein the passage of product through the first flow path is prevented, and a first biasing member for biasing the first valve member into the closed position. The coupling is configured such that, if the first and second bodies become decoupled from one another, the first valve member is moved into the closed position. The first biasing member is isolated from the flow path passing through the coupling.

A coupling for use with comestible products having a first body with a first flow path extending therethrough and a second body with a second flow path extending therethrough. The first and second bodies are configured for coupling together such that the first and second flow paths form a continuous flow path through the coupling. The coupling further comprises a first valve member actuable between an open position, wherein product can pass through the first flow path, and a closed position, wherein the passage of product through the first flow path is prevented, and a first biasing member for biasing the first valve member into the closed position. The coupling is configured such that, if the first and second bodies become decoupled from one another, the first valve member is moved into the closed position. The first biasing member is isolated from the flow path passing through the coupling.

A self-sealing end fitting includes a valve, an adaptor, and a connector. The valve may define a longitudinal axis and may include a first end portion, a second end portion, a flange disposed therebetween, and a central bore. The adaptor may have a first end portion surrounding at least the second end portion of the valve, and the connector may surround at least the first end portion of the valve. A portion of the connector, a portion of the flange, and a portion of the first end portion of the adaptor may define a pocket. The valve may be configured to move axially relative to the adaptor. In embodiments, a sealing surface of the flange may contact a corresponding sealing surface of the first end portion of the adaptor to form a first seal within the pocket, and the first seal may comprise a metal-to-metal seal.

A self-sealing end fitting includes a valve, an adaptor, and a connector. The valve may define a longitudinal axis and may include a first end portion, a second end portion, a flange disposed therebetween, and a central bore. The adaptor may have a first end portion surrounding at least the second end portion of the valve, and the connector may surround at least the first end portion of the valve. A portion of the connector, a portion of the flange, and a portion of the first end portion of the adaptor may define a pocket. The valve may be configured to move axially relative to the adaptor. In embodiments, a sealing surface of the flange may contact a corresponding sealing surface of the first end portion of the adaptor to form a first seal within the pocket, and the first seal may comprise a metal-to-metal seal.

A fluid coupler includes: an outer body; an end connector being at least partially received inside the outer body and configured to receive pressurized fluid; an inner body received inside the outer body, the inner body being moveable with respect to the outer body; a seat holder and a valve seat both located inside of the inner body, the valve seat being configured to press against an inner surface of the inner body to close the fluid coupler; a connector partially housed within the inner body, the connector comprising a first end secured to the seat holder and a second end. The fluid coupler defines a pressurized fluid flow path enabling pressurized fluid to contact and pressurize the end connector, the inner body, the seat holder, and the connector without contacting and pressurizing the outer body.

A fluid coupler includes: an outer body; an end connector being at least partially received inside the outer body and configured to receive pressurized fluid; an inner body received inside the outer body, the inner body being moveable with respect to the outer body; a seat holder and a valve seat both located inside of the inner body, the valve seat being configured to press against an inner surface of the inner body to close the fluid coupler; a connector partially housed within the inner body, the connector comprising a first end secured to the seat holder and a second end. The fluid coupler defines a pressurized fluid flow path enabling pressurized fluid to contact and pressurize the end connector, the inner body, the seat holder, and the connector without contacting and pressurizing the outer body.

A connector for the reciprocal connection of an end member of a water supply or of a sprayer with a flexible hose includes a tubular main body defining an axis and having a first end portion for coupling with the end member and a second end portion that includes an elongated spigot, on which an end of the flexible hose may be fitted, and further includes an abutment wall, from which the elongated spigot extends. The connector also includes a substantially tubular shaped ring nut placed peripherally to the spigot and reciprocally screwable with the main body, and an annular pressure element interposed coaxially between the ring nut and the spigot.

A connector for the reciprocal connection of an end member of a water supply or of a sprayer with a flexible hose includes a tubular main body defining an axis and having a first end portion for coupling with the end member and a second end portion that includes an elongated spigot, on which an end of the flexible hose may be fitted, and further includes an abutment wall, from which the elongated spigot extends. The connector also includes a substantially tubular shaped ring nut placed peripherally to the spigot and reciprocally screwable with the main body, and an annular pressure element interposed coaxially between the ring nut and the spigot.

The invention relates to domestics appliance system which makes use of a push-fit fluid coupling (1) comprising a fluid feeding portion (2) and a fluid receiving portion (3) adapted to cooperate with each other to enable fluid to flow in a downstream direction (D1) from the fluid feeding portion (2) to the fluid receiving portion (3). The fluid receiving portion (3) comprises an actuator (65) comprising a fluid conduit (67) for fluid to flow from the fluid feeding portion (2) to the fluid receiving portion (3). The fluid feeding portion (2) comprises a housing (4) defining a fluid flow path (5) and comprising an opening (6) in which the actuator (65) is intended to be inserted, a chamber (37) arranged in the housing (4) in which fluid is intended to flow, a valve seat (8) and a valve member (7) engaging the valve seat (8) for closing the fluid flow path (5), a first piston (9) slidably received in the chamber (37) downstream of the valve member (7). The fluid feeding portion (2) and the fluid receiving portion (3) are adapted to cooperate with each other such that when the actuator (65) is inserted in the opening (6), the actuator (65) and the opening (6) cooperate with each other to form a fluid seal preventing fluid in chamber (37) to leak out from the chamber (37), then, when the actuator (65) is further inserted in the opening (6), the actuator (65) is adapted to contact the first piston (9) and to displace the first piston (9) in an upstream direction (D2) until the first piston (9) contacts the valve member (7) and lifts the valve member (7) off the valve seat (8) for opening the fluid flow path (5) and allowing fluid to flow in the downstream direction (D1). This invention prevents leak of fluid between the fluid feeding portion (2) and the fluid receiving portion (3).

The invention relates to domestics appliance system which makes use of a push-fit fluid coupling (1) comprising a fluid feeding portion (2) and a fluid receiving portion (3) adapted to cooperate with each other to enable fluid to flow in a downstream direction (D1) from the fluid feeding portion (2) to the fluid receiving portion (3). The fluid receiving portion (3) comprises an actuator (65) comprising a fluid conduit (67) for fluid to flow from the fluid feeding portion (2) to the fluid receiving portion (3). The fluid feeding portion (2) comprises a housing (4) defining a fluid flow path (5) and comprising an opening (6) in which the actuator (65) is intended to be inserted, a chamber (37) arranged in the housing (4) in which fluid is intended to flow, a valve seat (8) and a valve member (7) engaging the valve seat (8) for closing the fluid flow path (5), a first piston (9) slidably received in the chamber (37) downstream of the valve member (7). The fluid feeding portion (2) and the fluid receiving portion (3) are adapted to cooperate with each other such that when the actuator (65) is inserted in the opening (6), the actuator (65) and the opening (6) cooperate with each other to form a fluid seal preventing fluid in chamber (37) to leak out from the chamber (37), then, when the actuator (65) is further inserted in the opening (6), the actuator (65) is adapted to contact the first piston (9) and to displace the first piston (9) in an upstream direction (D2) until the first piston (9) contacts the valve member (7) and lifts the valve member (7) off the valve seat (8) for opening the fluid flow path (5) and allowing fluid to flow in the downstream direction (D1). This invention prevents leak of fluid between the fluid feeding portion (2) and the fluid receiving portion (3).