Patent ID: 8087700

Claim:
A female hydraulic coupling member comprising: (a) a body having a first longitudinal bore, the first bore having adjacent first and second circumferential shoulders therein; (b) a retainer adapted to be inserted into a first end of the first longitudinal bore and to seat on the first shoulder, the retainer having a second longitudinal bore; (c) an annular probe seal having a generally C-shaped cross section within the first longitudinal bore interposed between the second shoulder and the retainer upon insertion of the retainer into the first longitudinal bore and oriented such that the opening in the C-shaped seal faces the longitudinal axis of the first bore, the seal comprising a first curved section and a second, opposing curved section such that when the probe section of a male hydraulic coupling member is inserted in the female hydraulic coupling member and contacts the probe seal, the first curved section of the probe seal is pressure-energized if the fluid pressure within the coupling exceeds the ambient pressure and second curved section of the probe seal is pressure-energized if the ambient pressure exceeds the fluid pressure within the coupling.