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. 16, 1993
Filed:
Jun. 25, 1991
Applicant:
Inventors:
Richard A Romero, Farmington Hills, MI (US);
Jesus Bengoa, Durango, ES;
Assignee:
Federal-Mogul Corporation, Southfield, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277 37 ; 277 38 ; 277 53 ; 277152 ; 277153 ;
Abstract
A unitized seal includes a first seal casing having a radially-extending unitizing flange and a second seal casing having an annular elastomeric bumper. The bumper has an engagement surface which confronts the unitizing flange for engagement therewith. Upon installation of the seal, the unitizing flange compresses the bumper. Upon initial rotation of the seal, the unitizing flange slices into the bumper so as to form a labyrinth-type seal. This arrangement reduces running torque and seal lip temperature.