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. 23, 2023
Filed:
Dec. 03, 2021
Applicant:
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Inventors:
Tatsuya Yoshida, Kanagawa, JP;
Shinya Hamada, Kanagawa, JP;
Assignee:
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 9/09 (2006.01);
U.S. Cl.
CPC ...
F15B 9/09 (2013.01); F15B 2211/6336 (2013.01); F15B 2211/6656 (2013.01);
Abstract
A control calculation device performs a calculation of compensating for a volume change amount of each pressure chamber caused by a positional change of a pressure receiving plate inside a cylinder chamber for each position command value applied to two servo amplifiers, outputs each of the compensated position command values to the two servo amplifiers, and executes origin positioning for a position of a slider in order to compensate for the volume change amount.