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. 17, 1976
Filed:
Aug. 01, 1974
Hans Forch, Birkenau, DT;
Firma Carl Freudenberg, Weinheim an der Bergstrasse, DT;
Abstract
An improvement in a sealing assembly for a shaft which sealing assembly has a housing for a fluid medium, a flexible sealing ring disposed within said housing and adapted to be disposed about said shaft in contact therewith and means for urging said flexible sealing ring disposed within said housing and adapted to be disposed about said shaft in contact therewith and means for urging said flexible sealing ring into contact with said shaft. The improvement resides in that the flexible sealing ring comprises a layer which is impermeable to said fluid medium, said layer disposed in facing relationship to the interior of said housing, said sealing ring having on its exterior surface which is to be in contact with the shaft free fiber ends, a majority of which are oriented in an axial direction towards the interior of said housing and are disposed in the direction of rotation of the shaft.