Patent ID: 6935614
Filing Date: 2005-08-30
Classification: F16L

Abstract:
1. A coupling for an air hose, the coupling comprising a one-piece plug member, the plug member comprising a fitting at a first axial end, the fitting being adapted for connection to an air hose, an external circumferential groove, a beveled external shoulder forming a wall of the groove, an axial bore, the axial bore being closed at a second axial end of the plug member, and a plurality of air passages intersecting the axial bore near the closed end of the bore; a two-piece coupler member, the coupler member receiving the plug member and releasably locking with the groove on the plug member; the coupler member comprising a ring seal trapped between the two pieces of the coupler member, and a valve member seatable on an axial side of the ring seal; the plug member, when coupled with the coupler member, forming a seal with an interior of the ring seal, displacing the valve member, and putting the air passages in the plug member functionally on the same axial side of the ring seal as the valve member.