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:
Sep. 23, 2003
Filed:
Dec. 13, 2001
Applicant:
Inventors:
Assignee:
NSK Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 2/712 ; F16C 2/906 ; F16C 3/376 ; F16H 2/524 ; B29C 4/302 ;
U.S. Cl.
CPC ...
C08L 2/712 ; F16C 2/906 ; F16C 3/376 ; F16H 2/524 ; B29C 4/302 ;
Abstract
A sealing device equipped with a lip made of a rubber material composition wherein the rubber material composition comprises 100 parts by weight of a tetrafluoroethylene-propylene copolymer and 0.02 to 10 parts by weight of an ethylene-propylene-based copolymer is described, by which a long life sealing device that is not deteriorated even when used under an environment where chemicals such as a cutting lubricant containing an additive adversely affecting rubbers contact the sealing device is provided.