Patent ID: 8393400

Claim:
A wellhead assembly with an axis, comprising: an outer wellhead member having a bore; an inner wellhead member located in the bore; an annular seal assembly, comprising: upper and lower metal seals, each of the seals having a base with a pair of legs extending therefrom with tips that form opposing seal surfaces to sealingly engage the bore of the outer wellhead member and an exterior portion of the inner wellhead member when set into place between the outer wellhead member and the inner wellhead member, the legs of the upper metal seal extending upward, and the legs of the lower metal seal extending downward, the bases being axially spaced apart from each other; a central section located between the bases of the metal seals that is deformable so that when the seal assembly is set, the bases move toward each other and the central section deforms inward and outward into sealing engagement with the bore of the outer wellhead member and an exterior portion of the inner wellhead member; and wherein the central section is made out of an elastomeric material, the elastomeric material being attached to a side of each of the bases opposite the legs and directly attached to a portion of the outer surface of each of the legs, the elastomeric material of the central section having a greater radial thickness prior to setting the seal assembly than a thickness of the upper and lower metal seals prior to setting the seal assembly, to thereby wipe the bore of the outer wellhead member during installation.