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. 29, 2009
Filed:
Jul. 08, 2005
Eric Gest, Compiegne, FR;
Philippe Lucienne, Aumont en Halatte, FR;
Jean-philippe Raisin, Gouvieux, FR;
Eric Gest, Compiegne, FR;
Philippe Lucienne, Aumont en Halatte, FR;
Jean-Philippe Raisin, Gouvieux, FR;
Poclain Hydraulics Industrie, Verberie, FR;
Abstract
An open hydraulic circuit comprising a main pump (P), a hydraulic motor (M), two main ducts () constituting a feed main duct and a discharge main duct and connected to the pump or to a reservoir (R) via a feed selector (). The circuit further comprises a multifunction valve device comprising a multifunction selector () for connecting the main duct that is at the higher pressure to a pressure limiter () and for connecting the main duct that is at the lower pressure to booster means (), and for interconnecting the main ducts by connecting them to the pressure limiter when the pressures in the main ducts are substantially mutually equal.