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. 19, 2016
Filed:
Sep. 19, 2011
Kei Okamura, Kariya, JP;
Yoshitake Hisada, Kariya, JP;
Kei Okamura, Kariya, JP;
Yoshitake Hisada, Kariya, JP;
ADVICS CO., LTD., Kariya-Shi, Aichi-Ken, JP;
Abstract
A sealing apparatus includes: a case having a hollow portion; a shaft passing through the hollow portion; and a sealing member sealing between the case and the shaft, and including a resin ring and a ring-shaped rubber cap. The rubber cap includes a base portion and a lip portion. The lip portion includes a first lip contacting the resin ring and a second lip configured to contact an inner peripheral surface of the case. If a pressure of a first chamber of the lip portion side is lower than a pressure of a second chamber at the side of the base portion, the second lip is separated from the case to relieve the pressure of the second chamber to the first chamber. The base portion includes a first restricting surface for restricting the base portion from moving, and a second surface for restricting the base portion from moving.