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:
Apr. 08, 2003
Filed:
Mar. 09, 2001
Shiro Osumi, Takahashi, JP;
Naoki Hayakawa, Takahashi, JP;
Takanobu Matsumoto, Takahashi, JP;
Yamada Takeshi, Kariya, JP;
Imai Takayuki, Kariya, JP;
Other;
Abstract
A lip type seal ( A) has an annular casing ( ), a plurality of seal lips ( ) and a rear surface support ring ( ) arranged at the rear side. The casing ( ) is installed to an inner circumferential surface of a seal installation part ( ) of a shaft hole housing ( ) of an equipment through a main gasket ( ) made of rubber state elastic material. An inner circumferential part of the seal lips ( ) is closely contacted with an outer circumferential surface of a rotary shaft ( ). A sub-gasket ( ) made of a material having a CO transmission coefficient being smaller than that of rubber material is interposed between the rear surface support ring ( ) and the shaft hole housing ( ).