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:
May. 28, 1991
Filed:
Apr. 19, 1990
Applicant:
Inventor:
Larry D Thomas, Beatrice, NE (US);
Assignee:
Hoover Group, Inc., Alpharetta, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ; F16J / ;
U.S. Cl.
CPC ...
277152 ; 277187 ; 277205 ; 2772 / ; 2772 / ;
Abstract
A shaft seal consisting of a generally tubular hollow body formed of plastic and having lip seal portions at each end. Flexure grooves in the body enable lip seals on the inner surface of the body to be biased into sealing engagement with a shaft extending through the seal body.