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:
Dec. 19, 1978
Filed:
Jul. 13, 1977
Applicant:
Inventor:
Allan E Heinrich, Oconomowoc, WI (US);
Assignee:
Dynex/Rivett Inc., Pewaukee, WI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
60327 ; 60329 ; 60456 ; 418 83 ;
Abstract
Disclosed is a method of preventing thermal shock to a hydraulic motor in an open-loop hydraulic system. The method comprises the step of circulating warm oil through the motor when it is not in use. Preferably the method includes the further step of returning the warm oil to the tank after it has passed through the motor, and where appropriate it may also include the preliminary step of lowering the pressure of the warm oil before it is passed through the motor. The method is disclosed as applied to a vane motor, and means for carrying it out in that context are also disclosed.