Patents by Inventor Gamil Rizk

Gamil Rizk 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).

  • Publication number: 20060043326
    Abstract: A valve includes a valve body, a flux tube, and a winding. The body defines first and second passageways, and a circular opening is defined in the second passageway providing fluid communication between the passageways. The flux tube has a closed end, an open end, and a hollow armature receiving section. The open end is in fluid communication with the first passageway. A spherical armature is disposed in the armature receiving section for reciprocating movement between a closed position sealing against the circular opening to prevent communication between the passageways and an open position spaced apart from the opening permitting communication between the passageways. The winding is disposed about the flux tube for electromagnetically positioning the armature. The flux tube forms a fluid tight pressure boundary between the winding and the passageways. A spring urges the armature toward one of the open position and the closed position.
    Type: Application
    Filed: August 27, 2004
    Publication date: March 2, 2006
    Inventors: Herbert Linkner, Gamil Rizk
  • Publication number: 20050162005
    Abstract: A hydraulic braking system including first and second braking circuits. The first and second braking circuits each include a wheel brake, a pressurized fluid source, and a hydraulic conduit connecting the wheel brake to the fluid source. Each of the hydraulic conduits includes a control valve that operates to selectively prevent fluid flow from the pressurized fluid source to the wheel brake. A connecting conduit connects the first and second braking circuits. A floating piston is disposed within the connecting conduit and is adapted to be displaced by the pressurized fluid provided by the pressurized fluid source in the first braking circuit when the control valve of the first braking circuit is closed. The displacement of the piston generates an additional volume of pressurized fluid in the hydraulic conduit of the second braking circuit that effectively augments the pressurized fluid provided by the second pressurized fluid source.
    Type: Application
    Filed: January 28, 2004
    Publication date: July 28, 2005
    Inventors: Patrick Hool, Gamil Rizk
  • Publication number: 20050134112
    Abstract: A self-cleaning orifice includes a housing having a bore defined therein. The bore includes a first diameter inlet portion and a second diameter outlet portion, with a seating surface defined between the inlet and outlet portions. A movable body having a seating surface with a groove defined thereon is disposed within the outlet portion of the bore. The body is movable relative to the housing to a first position in which the seating surface of the body is seated against the seating surface of the housing and provides a restricted flow between the inlet portion and the outlet portion of the bore The body is also movable relative to the housing to a second position in which the seating surface of the body is spaced apart from the seating surface of the housing creating an unrestricted fluid flow path between the inlet portion and the outlet portion of the bore.
    Type: Application
    Filed: December 17, 2003
    Publication date: June 23, 2005
    Inventors: Gamil Rizk, Leon Leventhal