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:
Mar. 25, 1980
Filed:
Mar. 09, 1978
Applicant:
Inventors:
Hans Forch, Birkenau, DE;
Helmut Niklas, Weinheim an der Bergstrasse, DE;
Assignee:
Firma Carl Freudenberg, Weinheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277152 ; 277165 ; 277D / ; 277134 ;
Abstract
In a sealed radial shaft assembly comprising a radial shaft and an annular sealing ring, the inside of said ring encircling said shaft, said sealing ring having fiber ends projecting therefrom and contacting said shaft so as to enhance said seal, the improvement which comprises an integrally molded casing about the outside of said ring. The casing may be molded of thermoplastic or thermosetting materials, e.g. polypropylene, polyurethane, or the like, and a stiffening reinforcement such as a metal ring may be embedded in the casing. If the ring portion is of fabric, the plastic fills the pores to form a unit therewith.