Patent ID: 6926312
Filing Date: 2005-08-09
Classification: F16L,Y10S

Abstract:
1. Quick coupler for selectively connecting and disconnecting two pipes through which a fluid under pressure passes, said coupler comprising a male and a female element adapted to fit axially in each other, a body of the female element carrying a latch resiliently biased by elastic means, said latch being mounted to slide transversely with respect to a conduit defined through said body and having an opening for receiving said male element or a piece displaced by said male element therethrough, a wall defining the opening of said latch being equipped with teeth offset with respect to one another along a median axis of said opening, said male element or said piece being provided with a shoulder adapted to rest selectively against one of said teeth, a safety member movably mounted within said female element so as to be subjected to pressure exerted by the fluid, and said safety member being provided with a surface adapted to come into abutment on a complementary surface of said latch to block the movement of said latch by said elastic means until pressure of the fluid within the quick coupler drops to a pressure which is safe to permit said male element to be disconnected from said female element.