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, 1990
Filed:
Sep. 22, 1988
Applicant:
Inventor:
Wolfgang Kauss, Lohr-Wombach, DE;
Assignee:
Mannesmann Rexroth GmbH, Lohr am Main, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
60452 ;
Abstract
A load-independent control device for hydraulic users has an initial position in which a control line transmitting a load pressure is connected with a tank. The control device has a control valve for the user and a switching valve, which can be controlled independently of the control valve, and has a cutoff position as well as a through position, in which it connects with the control line transmitting the load pressure to the tank.