Patents by Inventor Henri Chotel

Henri Chotel 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).

  • Hydraulic equipment draining means
    Patent number: 5770053
    Abstract: A draining apparatus drains and dries hydraulic equipment such as aircraft circuits. The draining equipment includes a reservoir connected to the equipment by a suction line. (Venturi 20) which produces a vacuum in the reservoir responsive to compressed air injected by a line from an external compressed air source. If a calibrated valve is connected to an inlet of the equipment then a branch line of the equipment supplies part of the compressed air to the inlet connection of the equipment so that pressure which enters the equipment is inadequate to produce an overpressure at an outlet.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: June 23, 1998
    Assignee: Societe Nationale Industrielle et Aerospatiale
    Inventors: Henri Chotel, Max Roger, Alexis Albin