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. 08, 2015
Filed:
Dec. 09, 2010
Applicants:
Hideo Nirasawa, Wako, JP;
Shigeru Kanehara, Wako, JP;
Shinichi Hirai, Wako, JP;
Kosuke Yamane, Isesaki, JP;
Masahiko Shinohara, Isesaki, JP;
Inventors:
Hideo Nirasawa, Wako, JP;
Shigeru Kanehara, Wako, JP;
Shinichi Hirai, Wako, JP;
Kosuke Yamane, Isesaki, JP;
Masahiko Shinohara, Isesaki, JP;
Assignees:
HONDA MOTOR CO., LTD., Tokyo, JP;
YAMADA MANUFACTURING CO., LTD., Gunma, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C 2/00 (2006.01); F04C 2/10 (2006.01);
U.S. Cl.
CPC ...
F04C 2/102 (2013.01); F04C 2230/41 (2013.01); F04C 2230/92 (2013.01); F04C 2270/16 (2013.01); F05C 2251/10 (2013.01);
Abstract
In a gear pump in which a driving rotor that is driven by a driving source meshes with a driven rotor that is driven by the driving rotor for rotation to pump a hydraulic oil, only one of the driving rotor and the driven rotor is given the steam treatment while the other remains untreated.