Patents by Inventor Eric Gest

Eric Gest has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9121109
    Abstract: A body for an actuated valve, the actuated valve comprising flow regulating means for regulating the flow of a fluid between an input bore and an output bore of a barrel, and actuating means for controlling a position of the flow regulating means, the body comprising: a barrel having at least the input bore and the output bore; an actuating volume inside of which at least part of the actuating means can be placed, wherein the barrel and the actuating volume are integrally formed in a single piece.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: September 1, 2015
    Assignee: Generale de Robinetterie Industrielle et de Systemes de Surete S.A.
    Inventors: Olivier Fache, Eric Vincent, Eric Gest, Damien Bergot
  • Patent number: 7637102
    Abstract: An open hydraulic circuit comprising a main pump (P), a hydraulic motor (M), two main ducts (10, 12) constituting a feed main duct and a discharge main duct and connected to the pump or to a reservoir (R) via a feed selector (14). The circuit further comprises a multifunction valve device comprising a multifunction selector (20) for connecting the main duct that is at the higher pressure to a pressure limiter (24) and for connecting the main duct that is at the lower pressure to booster means (16), and for interconnecting the main ducts by connecting them to the pressure limiter when the pressures in the main ducts are substantially mutually equal.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: December 29, 2009
    Assignee: Poclain Hydraulics Industrie
    Inventors: Eric Gest, Philippe Lucienne, Jean-Philippe Raisin
  • Publication number: 20080047263
    Abstract: An open hydraulic circuit comprising a main pump (P), a hydraulic motor (M), two main ducts (10, 12) constituting a feed main duct and a discharge main duct and connected to the pump or to a reservoir (R) via a feed selector (14). The circuit further comprises a multifunction valve device comprising a multifunction selector (20) for connecting the main duct that is at the higher pressure to a pressure limiter (24) and for connecting the main duct that is at the lower pressure to booster means (16), and for interconnecting the main ducts by connecting them to the pressure limiter when the pressures in the main ducts are substantially mutually equal.
    Type: Application
    Filed: July 8, 2005
    Publication date: February 28, 2008
    Inventors: Eric Gest, Philippe Lucienne, Jean-Philippe Raisin
  • Patent number: 7150150
    Abstract: The circuit includes a main pump, a hydraulic motor, two main ducts, a selector for connecting the main ducts to the main pump or to a reservoir or for isolating them therefrom, a boost duct, and two pressure limiters disposed between the main ducts. A relief valve device that can take up a retention position and a relief position in which it connects one main duct (14, 16) to a relief enclosure can take up its relief position when, with the selector isolating the main ducts from the main pump and from the reservoir, the difference between the pressure in the main duct to which the control duct is connected and a relief pressure higher than the boost pressure changes sign.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: December 19, 2006
    Assignee: Poclain Hydraulics Industrie
    Inventors: Louis Bigo, Jean-Pierre Lebrun, Jean-Philippe Raisin, Eric Gest
  • Publication number: 20050109026
    Abstract: The circuit includes a main pump, a hydraulic motor, two main ducts, a selector for connecting the main ducts to the main pump or to a reservoir or for isolating them therefrom, a boost duct, and two pressure limiters disposed between the main ducts. A relief valve device that can take up a retention position and a relief position in which it connects one main duct (14, 16) to a relief enclosure can take up its relief position when, with the selector isolating the main ducts from the main pump and from the reservoir, the difference between the pressure in the main duct to which the control duct is connected and a relief pressure higher than the boost pressure changes sign.
    Type: Application
    Filed: September 29, 2004
    Publication date: May 26, 2005
    Inventors: Louis Bigo, Jean-Pierre Lebrun, Jean-Philippe Raisin, Eric Gest