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. 05, 2011

Filed:

Mar. 13, 2006
Applicant:

Yuichi Suzuki, Komatsu, JP;

Inventor:

Yuichi Suzuki, Komatsu, JP;

Assignees:

Komatsu Ltd., Tokyo, JP;

Komatsu Industries Corp., Ishikawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21J 9/18 (2006.01); B21D 22/00 (2006.01); B21C 51/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A die cushion controller controls an ascending/descending speed of a die cushion pad based on a preset pressure pattern and positional pattern. A position/pressure control switching unit constantly monitors and compares a first speed command signal υpc corresponding to a pressure deviation signal ep and a second speed command signal υhc corresponding to a position deviation signal eh, and selects a smaller one of the speed command signals to be sent to a speed control unit.


Find Patent Forward Citations

Suzuki, Yuichi. (2011). Die cushion control device (U.S. Patent No. 7918120). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7918120

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

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