SEAL ASSEMBLY FOR LIMITING THE MOVEMENT OF A SEAL WITHIN A SEAL HOUSING

摘要

An improvement in a seal assembly of the type including a seal element retained by a seal housing, where one of the seal element and the seal housi ng is constructed from a compressible material, where the seal element includes a seal engagement surface and where the seal housing includes a housing engagement surface. The improvement includes at least one of the seal engagement surfac e and the housing engagement surface defining a depression for providing an isolated g ap between the seal engagement surface and the housing engagement surface.