Abstract: A quick connect coupling includes female and male assemblies. The female and male assemblies include first and second valves, respectively, operable between open and closed positions. The male assembly connects to the female assembly by axial movement and relative rotation, wherein the male assembly disconnects from the female assembly by relative rotation and axial separation, wherein relative rotation of the assemblies moves the second valve between the open and closed positions. Moving the second valve from the closed to the open position allows the first valve to be movable from the closed position to the open position and moving the first valve from the closed to the open position limits relative rotation between the assemblies and prevents disconnection. Disconnection can only occur when the first valve has been moved to the closed position. Disconnection moves the second valve from the open to the closed position.

Abstract: A quick connect coupling includes female and male assemblies. The female and male assemblies include first and second valves, respectively, operable between open and closed positions. The male assembly connects to the female assembly by axial movement and relative rotation, wherein the male assembly disconnects from the female assembly by relative rotation and axial separation, wherein relative rotation of the assemblies moves the second valve between the open and closed positions. Moving the second valve from the closed to the open position allows the first valve to be movable from the closed position to the open position and moving the first valve from the closed to the open position limits relative rotation between the assemblies and prevents disconnection. Disconnection can only occur when the first valve has been moved to the closed position. Disconnection moves the second valve from the open to the closed position.

Abstract: A coupling assembly including a union member having a first receiving portion with internal threads and a second receiving portion with oppositely oriented internal threads, a first coupling member (e.g., a hose adapter) having external threads that are threadingly engaged to the internal threads of the union member, and a second coupling member (e.g., an elbow fitting) having external threads that are threadingly engaged to the oppositely oriented internal threads of the union member. Upon rotation of the union member, the length and/or phase angle between the first and second coupling members changes.

Abstract: A coupling assembly including a union member having a first receiving portion with internal threads and a second receiving portion with oppositely oriented internal threads, a first coupling member (e.g., a hose adapter) having external threads that are threadingly engaged to the internal threads of the union member, and a second coupling member (e.g., an elbow fitting) having external threads that are threadingly engaged to the oppositely oriented internal threads of the union member. Upon rotation of the union member, the length and/or phase angle between the first and second coupling members changes.