Patent ID: 7147206

Claim:
A male or female element of a safety quick connection for removably joining pipes and/or reservoirs of fluid under pressure, one of said elements including a closure valve adapted to be moved to an open position by the other element of the connection, while, when said valve is in abutment and in a closed position against a seat, at least one surface of said valve, adapted to be engaged by a part of said other element, is recessed with respect to an open annular transverse section S 3 through which said part of said other element is received for opening the valve and wherein a ratio of a mean width l 3 of said open annular transverse section S 3 , taken in a radial direction with respect to an axis of fit of said male and female elements, and of a depth of recess d 2 of said at least one surface from said open annular transverse section S 3 , is less than 1.