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:
Aug. 28, 2012
Filed:
May. 12, 2006
Hiroshi Hasegawa, Osaka, JP;
Masaru Matsui, Kyoto, JP;
Atsuo Okaichi, Osaka, JP;
Tomoichiro Tamura, Kyoto, JP;
Takeshi Ogata, Osaka, JP;
Hiroshi Hasegawa, Osaka, JP;
Masaru Matsui, Kyoto, JP;
Atsuo Okaichi, Osaka, JP;
Tomoichiro Tamura, Kyoto, JP;
Takeshi Ogata, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An integrally formed vane () is disposed slidably in a vane groove () of a first cylinder () and a vane groove () of a second cylinder (). A cut-out () with a width substantially equal to the thickness of an intermediate plate () is provided in the vane (), which is divided by this cut-out () into a first vane portion () whose leading end makes contact with a first piston () at its leading end and a second vane portion () whose leading end makes contact with a second piston (). This configuration allows the first vane portion () to be pushed toward the first piston () side by the pressure difference acting on the second vane portion () and makes it possible to keep a contact state between the first vane portion () and the first piston (), even when no pushing force toward the first piston () side that results from the pressure difference acts on the first vane portion ().