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:
Oct. 12, 2010
Filed:
Apr. 26, 2010
Shinya Nakaoka, Fujisawa, JP;
Kuniaki Miyake, Fujisawa, JP;
Taisuke Yamada, Fujisawa, JP;
Takeshi Watanabe, Fujisawa, JP;
Tomonari Saito, Fujisawa, JP;
Eiji Mizutani, Kariya, JP;
Tomoo Ogura, Kariya, JP;
Shinya Nakaoka, Fujisawa, JP;
Kuniaki Miyake, Fujisawa, JP;
Taisuke Yamada, Fujisawa, JP;
Takeshi Watanabe, Fujisawa, JP;
Tomonari Saito, Fujisawa, JP;
Eiji Mizutani, Kariya, JP;
Tomoo Ogura, Kariya, JP;
NOK Corporation, , JP;
Advics Co., Ltd., , JP;
Abstract
To prevent abnormal deformation of a bellows, an accumulator has a regulation mechanism for reducing a pressure difference generated when liquid sealed in a liquid chamber and charged gas are thermally expanded at a zero-down time, a seal plate is arranged in an inner peripheral side of a bellows floating end, an elastically deformable thin plate is bonded to the seal plate, an outer peripheral portion of the thin plate is bonded to the bellows floating end, the seal plate is away from a seal at a time of a steady operation, the seal plate contacts with the seal at a zero-down time, and the thin plate is elastically deformed to make liquid pressure balance with gas pressure while the seal plate being kept in contact with the seal when the liquid and gas are thermally expanded.