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. 03, 2008
Filed:
Sep. 24, 2004
Tatsuo Nanjo, Tokyo, JP;
Ryoichi Matsumoto, Tokyo, JP;
Ryoji Inoue, Tokyo, JP;
Hideki Ogura, Tokyo, JP;
Satoshi Oikawa, Tokyo, JP;
Ken Hosaka, Tokyo, JP;
Tatsuo Nanjo, Tokyo, JP;
Ryoichi Matsumoto, Tokyo, JP;
Ryoji Inoue, Tokyo, JP;
Hideki Ogura, Tokyo, JP;
Satoshi Oikawa, Tokyo, JP;
Ken Hosaka, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid-feeding system efficiently transferring liquid from a liquid storage to a liquid chamber and efficiently transferring gas from the liquid chamber to the liquid storage. The liquid-feeding system includes a liquid-using unit, the liquid storage, the liquid chamber in communication with the liquid-using unit, a plurality of communication paths facilitating communication between the liquid chamber and the liquid storage, the liquid chamber having a substantially enclosed space except where the space communicates with the plurality of communication paths and with the liquid-using unit, a pressure regulator disposed in the liquid storage and regulating the internal pressure of the liquid storage, and means for changing an internal pressure of the liquid chamber relatively higher than an internal pressure of the liquid storage.