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. 04, 1984
Filed:
Feb. 15, 1983
Applicant:
Inventor:
Georg Rausch, Lohr, DE;
Assignee:
Mannesmann Rexroth GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; G05D / ;
U.S. Cl.
CPC ...
137489 ; 137495 ;
Abstract
In a balanced pressure valve with a switching valve for switching over to pressureless circulation, restrictors are provided in the line carrying the system pressure in such a way that the opening motion of the main piston of the balanced pressure valve is heavily damped, and the throttle losses in the bypass line leading from the line carrying the system pressure via the switching valve to the tank are very low when the main piston is open, and with this also the resistance of the main flow via the main piston is correspondingly low.