Patent ID: 7070208

Claim:
A male hydraulic coupling member comprised of: a tubular member with at least two ends including a first end, an externally threaded second end angled relative to said first end, a bore extending from said first end to said second end, a first cylindrical peripheral undercut portion longitudinally adjacent said threaded second end with a substantially uniform diameter slightly less than the minor diameter of said second end threads, an intermediate external threaded portion longitudinally adjacent said first undercut portion having a first longitudinal end and a second longitudinal end, said first longitudinal end of said intermediate external threaded portion being located immediately adjacent said first cylindrical peripheral undercut portion, a second cylindrical undercut portion of a substantially uniform diameter longitudinally extending from said second longitudinal end of said intermediate external threaded portion second longitudinal end to a shoulder portion; a seal member positioned within and in peripheral sealing contact with said first undercut portion; an annular ring member, positioned in close internal contact around said first undercut portion, located between said seal member and said intermediate external threaded portion first longitudinal end; and a lock nut, located on the side of the annular ring remote from said seal member, having a first longitudinal end and a second longitudinal end, an inner diameter of said lock nut being in threaded engagement with said intermediate external threaded portion, said lock nut first longitudinal end at a location immediately adjacent said inner diameter of said lock nut, regardless of the axial position of said lock nut relative to said intermediate external portion, always being located between said annular ring member and said intermediate external threaded portion first longitudinal end.