Patent ID: 7857319
Filing Date: 2010-12-28
Classification: F16J

Abstract:
1. A mechanical end face seal assembly to provide a fluid tight seal between a housing and a relatively rotatable shaft comprising: a pair of annular seal rings surrounding the shaft each including an annular generally planar sealing face disposed in fluid tight sealing relation to the annular generally planar sealing face of the other of said rings, one of said rings being associated with the housing in fluid tight sealing relation, the other of said rings being associated with said shaft in fluid tight relation, one of said rings being axially moveable and biased toward the other of said rings, said axially moveable ring including a radially outer cylindrical surface, and a compression contact ring surrounding said radially outer cylindrical surface having a plurality of arcuate contact surfaces in compressive contact with said radially outer cylindrical surface of said axially moveable seal ring at asymmetrical locations about said seal ring.