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:
Apr. 13, 1993
Filed:
Jul. 20, 1992
Applicant:
Inventor:
Frederick E Lederman, Sandusky, OH (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277152 ; 277 35 ; 384147 ; 384484 ;
Abstract
A unitized seal uses two casings and two attached disks of sealing material to provide four total lines of sealing contact. The casings have interleaved, axially and radially overlapping walls, the inner two of which carry the sealing disks. Radial overlap between the sealing disks, which flex easily past one another as the casings are assembled together, prevents casing pull apart during shipping and handling.