Patent ID: 7419194

Claim:
A flush cap for removable mounting onto a tube coupling having a flush passage lined with an annular seal member and at least one radially movable lock finger, said flush cap comprising: a generally cylindrical barrel sized for slide-fit reception into the tube coupling flush passage; said barrel having a relatively smooth-surfaced inboard end nose portion with an annular sealing surface for sealing engagement with the seal member, a radially outwardly open locking groove formed in said barrel generally at an outboard end of said nose portion for seated reception of the at least one lock finger to prevent removal of said barrel from the tube coupling, and at least one radially outwardly protruding cam for forming a rotational engagement with the lock finger to retract radially outwardly the at least one tube lock finger from said locking groove upon rotation of said barrel within the flush passage to permit removal of said barrel from the tube coupling; an end wall on said barrel to prevent water flow therethrough; and a grip tab fixed for rotation with the at least one radially outwardly protruding cam for manual manipulation of said barrel for slide-fit insertion into the flush passage and for rotational displacement within the flush passage.