The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 1996
Filed:
May. 31, 1994
Frederick E Lederman, Sandusky, OH (US);
General Motors Corporation, Detroit, MI (US);
Abstract
A seal assembly for a vehicle wheel assembly is provided for use between its two relatively rotatable coaxial parts, to seal the bearing chamber. The seal assembly includes a pair of nested casings forming a C-shaped recess in cross section. An annular wafer seal is disposed within the recess and pressed firmly against the adjacent sealing surface by inside and outside frustoconical springs. The inner and outer peripheral edges of the wafer seal form two seal interfaces along circular lines of contact. In addition, the center ring section of the wafer seal is attached by adhesive to a generally flat, annular face of one of the casings. In accordance with the method of assembly/installation, the springs are first installed and retained on the casing to which the seal is attached, thereby urging the peripheral edges of the wafer seal away from it. The casings are then pressed together, flexing the peripheral edges in the opposite direction and forming the circular lines of contact for sealing.