Patent ID: 8397646
Filing Date: 2013-03-19
Classification: B29C,B29K,B29L,B61D

Abstract:
1. A seal comprising: a compression limiting carrier, said carrier being annular and being of rigid relatively incompressible material, said carrier having longitudinally spaced apart, radially aligned, oppositely facing compression limiting surfaces, said carrier having generally concentric, radially spaced apart, circular, ring like inner and outer peripheral surfaces extending longitudinally between said compression limiting surfaces; an elastomeric thermosetting expander of generally annular configuration, said expander having longitudinally spaced apart, radially aligned, oppositely facing expander surfaces, the longitudinal distance between at least a portion of said expander surfaces of said expander being greater than the longitudinal distance between said compression limiting surfaces of said carrier when said expander is in an at rest position, said expander having inner and outer peripheral surfaces extending longitudinally between said expander surfaces, one of said peripheral surfaces of said expander being bonded to one of said peripheral surfaces of said carrier, the volume defined by said peripheral surfaces and said expander surfaces of said expander being substantially filled by the material of said expander; first and second longitudinally spaced apart seal members, said seal members each being annular and of thermoplastic fluoroelastomer material, said seal members each being bonded to one of said expander surfaces of said expander, said seal members being spaced apart by a longitudinal distance substantially greater than the longitudinal distance between said compression limiting surfaces of said carrier when said seal members are in an at rest position.