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:
Sep. 04, 2012
Filed:
Mar. 25, 2009
Kouji Sakai, Nagano, JP;
Hiromitsu Takizawa, Nagano, JP;
Takashi Kinoshita, Nagano, JP;
Yoshiteru Matsunaga, Nagano, JP;
Kouji Sakai, Nagano, JP;
Hiromitsu Takizawa, Nagano, JP;
Takashi Kinoshita, Nagano, JP;
Yoshiteru Matsunaga, Nagano, JP;
Nissin Kogyo Co., Ltd., Nagano, JP;
Abstract
An annular sealing memberfor establishing sealing between a boosted hydraulic pressure application chamberand an input-side annular chamberformed between a casing and a backup pistonA and connected to a hydraulic pressure source is disposed between the casing and the backup pistonA, and communication passagefor establishing communication between the input-side annular chamberand the boosted hydraulic pressure application chamberas the backup pistonA moves forward by a predetermined stroke or more is provided in one of the backup pistonA and the casing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile