Patent ID: 6299215
Filing Date: 2001-10-09
Classification: F16L,Y10S

Abstract:
A coupling fitting comprising:a first coupling member having a proximal end and a distal end with a passageway therethrough, the first coupling member including a pipe receiving section open at the proximal end thereof for threadably engaging with a first threaded fluid conduit, a ramp support section with a pair of spiral ramps formed therearound that terminate in a pair of lock seats;a second coupling member having a proximal end and a distal end with a passageway therethrough, the second coupling member including a sealing member at the proximal end thereof for engaging the distal end of the first coupling member, and a threaded extension portion protruding away from the sealing member for threadably engaging a second threaded fluid conduit; anda locking collar movably engaged with the second coupling member and having a pair of lock buttons disposed on an interior surface at the proximal end of the collar that is slidably engaged with the pair of spiral ramps of the first coupling member, wherein leak-proof communication from a first threaded fluid conduit to a second threaded fluid conduit is provided by five engagements which consist of:the engagement of the first coupling member to a first threaded fluid conduit;the engagement of the second coupling member to a second threaded fluid conduit;the engagement of the second coupling member to the first coupling member;the engagement of the first coupling member to the locking collar; andthe engagement of the second coupling member to the locking collar.