Patent ID: 8702106

Claim:
A seal assembly disposed within a radial seal groove to sealingly engage a bonnet within a bore, the seal assembly comprising: a radial seal surface; an axial seal surface; a vent surface opposite to the radial seal surface, the vent surface having a first recessed area and a first raised area; an axial preload surface having a second recessed area and a second raised area, the axial preload surface being opposite to the axial seal surface; and a backup ring at least partially bonded adjacent to the axial seal surface, wherein at least one vent of the bonnet is configured to allow communication between a high-pressure zone and the first recessed area but not the first raised area of the vent surface, wherein the radial seal surface sealingly engages against the bore and the axial seal surface sealingly engages against a longitudinal wall of the radial seal groove, wherein the seal assembly is thrust towards the longitudinal wall and away from a radial wall of the radial seal groove when pressure in the high-pressure zone increases, and wherein the first raised area is adjacent to the second raised area.