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:
Aug. 28, 2001
Filed:
Oct. 15, 1998
Applicant:
Inventors:
Ivo Agner, Bad Homburg, DE;
Andreas Hampel, Bühl, DE;
Martin Schindler, Baden-Baden, DE;
Axel Fassbender, Offenbach, DE;
Bernd Denfeld, Bad Homburg, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 2/300 ; G05D 1/100 ;
U.S. Cl.
CPC ...
F04B 2/300 ; G05D 1/100 ;
Abstract
The invention relates to a valve arrangement with a pressure limiting valve and a flow regulator valve, which comprises a flow regulator piston, having at least one first hydraulic resistor, distinguished in that the flow regulator valve's (,) flow regulator piston (,) has a split pressure return surface and in that the first part (ring surface (,)) of the pressure return surface is capable of working at a pressure p,and a second part (annulus surface (,)) of the pressure return surface is capable of working at a pressure p