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:
Nov. 03, 1981
Filed:
Nov. 18, 1980
Applicant:
Inventors:
Helmut Holzer, Weinheim, DE;
Ernst M von Arndt, Weinheim, DE;
Assignee:
Firma Carl Freudenberg, Weinhem, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277152 ; 277181 ; 277189 ;
Abstract
A two part ring for sealing a shaft against solid, liquid or gas leakage is disclosed. The outer part is a stiffening ring which has a circular projection as its inside diameter surface. The inner part is a lip ring having a circular, concentric slot in its back end face. The projection fits into the slot to concentrically mate the lip and stiffening rings.