Patents by Inventor Patrick Wasielewski

Patrick Wasielewski 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).

  • Tapping circuit including a tapping valve for replenishing and/or flushing the casing of a hydraulic motor
    Patent number: 6802182
    Abstract: The tapping circuit forms part of a main fluid circuit which comprises a hydraulic motor having a preferred operating direction and at least two main pipes suitable for communicating with the cylinder block of the motor and constituting respectively, in said preferred operating direction, a feed main pipe and a discharge main pipe. The tapping circuit comprises a single tapping and removal valve connected continuously via a tapping pipe to that one of said main pipes which, in the preferred direction, serves for discharge purposes. This valve serves to replenish the fluid so as to cool it and/or to flush the internal space of the casing of the motor.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: October 12, 2004
    Assignee: Poclain Hydraulics Industrie
    Inventors: Louis Bigo, Jean-Claude Case, Jacques Fontaine, Jean-Pierre Lebrun, Gilles Lemaire, Gilbert Mahe, Alain Mangano, Jean-Nöel Pogneau, Jean-Philippe Raisin, Vincent Siquier, Patrick Wasielewski
  • Tapping circuit including a tapping valve for replenishing and/or flushing the casing of a hydraulic motor
    Publication number: 20020083705
    Abstract: The tapping circuit forms part of a main fluid circuit which comprises a hydraulic motor having a preferred operating direction and at least two main pipes suitable for communicating with the cylinder block of the motor and constituting respectively, in said preferred operating direction, a feed main pipe and a discharge main pipe. The tapping circuit comprises a single tapping and removal valve connected continuously via a tapping pipe to that one of said main pipes which, in the preferred direction, serves for discharge purposes. This valve serves to replenish the fluid so as to cool it and/or to flush the internal space of the casing of the motor.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 4, 2002
    Inventors: Louis Bigo, Jean-Claude Case, Jacques Fontaine, Jean-Pierre Lebrun, Gilles Lemaire, Gilbert Mahe, Alain Mangano, Jean-Noel Pogneau, Jean-Philippe Raisin, Vincent Siquier, Patrick Wasielewski