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.

Date of Patent:
Apr. 18, 2017

Filed:

Oct. 04, 2013
Applicant:

Amada Company, Limited, Kanagawa, JP;

Inventors:

Tomohiro Yukita, Kanagawa, JP;

Akira Nakamura, Kanagawa, JP;

Takanori Okubo, Kanagawa, JP;

Assignee:

AMADA COMPANY, LIMITED, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 5/02 (2006.01); B30B 15/22 (2006.01); B30B 15/16 (2006.01); B30B 1/32 (2006.01);
U.S. Cl.
CPC ...
B21D 5/02 (2013.01); B30B 1/32 (2013.01); B30B 15/16 (2013.01); B30B 15/161 (2013.01); B30B 15/22 (2013.01); F15B 2211/20553 (2013.01); F15B 2211/20561 (2013.01); F15B 2211/27 (2013.01); F15B 2211/6336 (2013.01); F15B 2211/6652 (2013.01); F15B 2211/6654 (2013.01); F15B 2211/7053 (2013.01); F15B 2211/775 (2013.01);
Abstract

The pump discharge volume of a bi-directional piston pump is set to a reference pump discharge volume Qa in condition where the actuation state of lift cylinders is a no-load state, and is set to a small-discharge pump discharge volume Qb smaller than the reference pump discharge volume Qa in condition where the actuation state of the lift cylinders is a high-load state. Qb·Pb which is the product of the pump discharge volume Qb and a pump discharge pressure Pb of the bi-directional piston pump in condition where the actuation state of the lift cylinders is the high-load state is set to be equal to or less than or approximately equal to a Qa·Pa which is the product of the pump discharge volume Qa and a pump discharge pressure Pa of the bi-directional piston pump in condition where the actuation state of the lift cylinders is the no-load state.


Find Patent Forward Citations

Yukita, Tomohiro. (2017). Hydraulic press brake (U.S. Patent No. 9623463). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9623463

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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