Patent ID: 8267434

Claim:
A hose coupling comprising: a male part including a circumferential groove; and a female part, the male part being configured to be insertable within the female part, the female part including: a locking and stop pawl having a proximal detent and a distal detent at opposite ends of the locking and stop pawl; and a non-return valve configured to control the flow through the coupling; wherein the female part is surrounded by a spring loaded axially displaceable sleeve, the spring loaded sleeve including: an axially extended position, in which the locking and stop pawl is held in engagement, via the distal detent, with the circumferential groove of the male part to fully lock the male part to the female part; and an axially retracted position, in which the distal detent of the locking and stop pawl is positioned to obstruct, during uncoupling, the partially withdrawn male part to place the male part in a partially uncoupled position; and wherein the female part includes at least one axially oriented elongated slot configured to cooperate with the locking and stop pawl, the spring loaded sleeve including an oblique interior circumferential surface configured to bring the locking and stop pawl into fully locked engagement with the circumferential groove of the male part upon coupling insertion of the male part and the female part.