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.

Date of Patent:
Oct. 07, 2014

Filed:

May. 11, 2010
Applicants:

Koichiro Oiyama, Tokyo, JP;

Hideyuki Murakami, Tokyo, JP;

Yusaku Nakazono, Tokyo, JP;

Inventors:

Koichiro Oiyama, Tokyo, JP;

Hideyuki Murakami, Tokyo, JP;

Yusaku Nakazono, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/02 (2006.01); F16J 15/32 (2006.01);
U.S. Cl.
CPC ...
F16J 15/3228 (2013.01); F16J 15/3268 (2013.01);
Abstract

A lip type seal has a cartridge fitted to an inner periphery of a shaft hole, a first lip seal member, a case, a resin second lip seal member, a backup ring and an adapter, a protrusion section in a partial portion on a circumference is provided in a first flange section of the case to engage with the second lip seal member, whereby the second lip seal member is prevented from whirling with respect to the case and coming off to an inner side in a radial direction, and a projecting section in a partial portion on a circumference is provided in a flange section of the backup ring to engage with the second lip seal member, whereby the second lip seal member is prevented from whirling with respect to the backup ring and coming off to the inner side in the radial direction.


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