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:
Jul. 12, 2005
Filed:
Sep. 04, 2001
Peter Graf, Gemünden, DE;
Herbert Reder, Rothenfels, DE;
Rainer Imhof, Lohr, DE;
Hans-georg Schubert, Partenstein, DE;
Frank Schwab, Lohr, DE;
Peter Graf, Gemünden, DE;
Herbert Reder, Rothenfels, DE;
Rainer Imhof, Lohr, DE;
Hans-Georg Schubert, Partenstein, DE;
Frank Schwab, Lohr, DE;
Bosch Rexroth AG, Stuttgart, DE;
Abstract
Disclosed is a directional control valve comprising a front-side connector and at least one radial connector, wherein the front faces of a valve body (valve shift or seat body) of the directional control valve are pressurized approximately equally, so that the actuating forces for shifting the valve body are minimal. In accordance with the invention, the pressure for pressurizing a rearward front face of the valve body is tapped at an axial distance to the valve body.