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:
Mar. 16, 2010
Filed:
Jan. 19, 2007
Ryota Ohashi, Amagasaki, JP;
Hironori Sumomozawa, Amagasaki, JP;
Nobuhisa Kamikawa, Amagasaki, JP;
Masahisa Kawamura, Amagasaki, JP;
Ryota Ohashi, Amagasaki, JP;
Hironori Sumomozawa, Amagasaki, JP;
Nobuhisa Kamikawa, Amagasaki, JP;
Masahisa Kawamura, Amagasaki, JP;
Kanzaki Kokyukoki Mfg. Co., Ltd., Amagasaki, Hyogo, JP;
Abstract
There is provided a pump unit including plurality of hydraulic pumps respectively fluidly connected to plurality of hydraulic motors, which are disposed away from the pump unit, so as to form closed circuits, the pump unit including a pump case accommodating the plurality of hydraulic pumps so that the plurality of hydraulic pumps are operatively driven by a common power source; and a filter mounted at the pump case so as to be inserted in a charge passage for replenishing operation fluid from a fluid sump to the closed circuits.