Patent ID: 7100925

Claim:
A pressure-energized, metallic seal for sealing axially facing annular surfaces, comprising: a central annular portion extending around a central axis, said central annular portion having a first end and a second end; a first annular leg portion extending from said first end of said central portion to an annular first free end, said first annular leg portion having a first annular convex sealing surface lying in a first sealing plane that is perpendicular to said central axis; and a second annular leg portion extending from said second end of said central portion to a second free end, said second annular leg portion having a second annular convex sealing surface lying in a second sealing plane that is perpendicular to said central axis, said second free end of said second leg portion having an annular flange extending parallel to said first and second sealing planes and offset from said second sealing plane in an axial direction towards said first sealing plane, said annular flange extending beyond said annular first free end of said first annular leg portion such that said annular flange is exposed when viewed in an axial direction from said first sealing plane toward said second sealing plane, said central annular portion, said first annular leg portion, said second annular leg portion and said annular flange are formed as a monolithic member.