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:
May. 17, 2011
Filed:
Jun. 23, 2005
Atsushi Sakuda, Osaka, JP;
Noboru Iida, Osaka, JP;
Tatsuya Nakamoto, Osaka, JP;
Ryuichi Ohno, Osaka, JP;
Kiyoshi Sawai, Osaka, JP;
Hiroyuki Fukuhara, Osaka, JP;
Hideki Murakami, Osaka, JP;
Atsushi Sakuda, Osaka, JP;
Noboru Iida, Osaka, JP;
Tatsuya Nakamoto, Osaka, JP;
Ryuichi Ohno, Osaka, JP;
Kiyoshi Sawai, Osaka, JP;
Hiroyuki Fukuhara, Osaka, JP;
Hideki Murakami, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
Lifetime required of mobile-use fuel cells is secured and prolonged, stabilized pump performance is maintained by preventing bearing seizure and abnormal wear. The shaft () of a pump mechanism section () and the shaft () of a motor section () are integrated, and the shafts () are supported by two or more ball bearings disposed in the pump mechanism section (), thereby making it possible to fill grease in the closed spaces of the ball bearings (), and secure a sufficient lifetime basically with almost no possibility of the grease leaking out, even if it is used at a relatively high environmental temperature.