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:
Jul. 08, 1997
Filed:
Apr. 30, 1996
Applicant:
Inventors:
Rolf Drucktenhengst, Lampertheim, DE;
Rolf Vogt, Oftersheim, DE;
Assignee:
Carl Freudenberg, Weinheim, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277153 ; 277134 ; 277152 ; 277 29 ;
Abstract
A radial shaft seal comprises a gasket and an anti-dust lip made of polymer and resting axially separated against the shaft with concentric sealing edges around it. The anti-dust lip has at least two sealing edges separated by a gap. Each edge is interrupted by at least one groove that opens toward the shaft at points distributed around the seal circumference.