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:
Nov. 06, 2012
Filed:
Jun. 02, 2008
Applicant:
Yoshiyuki Ochi, Osaka, JP;
Inventor:
Yoshiyuki Ochi, Osaka, JP;
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16D 31/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A pressure sensor () is provided for detecting the discharge pressure of a hydraulic pump (). An abnormality detection section () of a controller () detects a dry operation of the hydraulic pump () when the discharge pressure detected by the pressure sensor () becomes equal to or lower than a judgment reference pressure determined in advance according to the driving rotation speed of the hydraulic pump ().