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:
Jun. 05, 2012
Filed:
Feb. 20, 2007
Takao Suzuki, Numazu, JP;
Sinichi Tamura, Susono, JP;
Masaki Sohda, Funabashi, JP;
Tetsuya Ishikawa, Hataya Omitama, JP;
Takashi Umeki, Tokyo-to, JP;
Takao Suzuki, Numazu, JP;
Sinichi Tamura, Susono, JP;
Masaki Sohda, Funabashi, JP;
Tetsuya Ishikawa, Hataya Omitama, JP;
Takashi Umeki, Tokyo-to, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Arai Seisakusho Co., Ltd., Tokyo, JP;
Abstract
An oil seal (A) has an outer member () fitted to a crankcase (), an inner member () integrally rotatably fitted to a crankshaft (), and a first movable lip () disposed in the gap (G) formed by the outer member () and the inner member (). The first movable lip () is disposed such that it is not in contact with the outer member () when rotation of the crankshaft () is stopped and that it is displaced in the direction to approach the outer member (), coming into contact with the outer member () to close the gap (G).