Patents by Inventor Pierre C. Fillion

Pierre C. Fillion 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: 3976333
    Abstract: A braking system for the brake of a fluid motor including a jack for releasing the brake and two selectors for controlling the flow of working fluid to the jack. The first selector is responsive to the supply of fluid to the motor to place the jack in communication with a supply pipe and the second selector is responsive to pressure in a bleed pipe connected to the fluid supply to the motor to place the supply pipe in communication with a supply of working fluid under pressure.
    Type: Grant
    Filed: May 8, 1975
    Date of Patent: August 24, 1976
    Assignee: Societe Anonyme: Poclain
    Inventors: Pierre C. Fillion, Gilles P. Vicentini
  • Patent number: 3968811
    Abstract: The present invention is directed to a supply circuit for a hydraulic jack employing two pumps in which a valve is positioned in a pipe which is branched to the delivery pipe of the first pump and is controlled by two jacks supplied by the fluid delivered by the second pump. A constrictor is positioned in the supply system for one of the jacks and another constrictor is placed in the discharge system for the two jacks with the invention being particularly applicable to achieving a stable control circuit for the load relief of the first pump.
    Type: Grant
    Filed: May 9, 1975
    Date of Patent: July 13, 1976
    Assignee: Societe Anonyme: Poclain
    Inventor: Pierre C. Fillion
  • Patent number: 3962954
    Abstract: The invention relates to a supply apparatus for two receiving means having a pressure summation device.A relief valve with a double control system is provided on a pipe shunted to the delivery pipe of the pump and has two control connections, a rod connecting the discharge member of the pressure summation device to the first of the said connections and a control pipe connecting that portion of the discharge pipe located between the connection of the latter to the delivery pipe and the relief valve to the second of the said connections.The invention is applicable to the realization of a supply apparatus with a pressure transfer system.BACKGROUND OF INVENTIONThe present invention relates to an apparatus for supplying pressurized fluid to two receiving means with pressure transfer by means of a double control valve.Apparatuses for supplying two receiving means equipped with a pressure transfer system are already known. Such an apparatus is for example described in French Publication No. 2,218,007 of Sept.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: June 15, 1976
    Assignee: Poclain
    Inventors: Rene F. Jacob, Pierre C. Fillion