Patents by Inventor William Levy

William Levy 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).

  • Device for pressurizing a plate bundle, especially for a plate heat exchanger
    Patent number: 5630475
    Abstract: A device for pressurizing a plate bundle which is arranged in a leakproof vessel (2) and comprises a stack of plates which are parallel to one another to form a first circulation circuit for a first fluid under pressure and a second circulation circuit for a second fluid under pressure. The device includes a first conduit (15) for connecting the vessel (2) to the delivery (10) of the first fluid continuously feeding the vessel (2), a second conduit (16) for connecting the vessel (2) to the delivery (12) of the second fluid feeding the vessel (2) in the event of stoppage of the delivery of the first fluid, and controls (20) for feeding of the vessel (2) with the second fluid.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: May 20, 1997
    Assignees: Framatome, Packinox
    Inventors: Dominique Sabin, William Levy, Emmanuel Martin
  • Hair dryer with continuously variable heat intensity and air flow speed
    Patent number: 5434946
    Abstract: A hair dryer has an electric heating element adapted to produce any desired intensity of heat output within a continuous range of heat intensities and an electric blower adapted to produce any desired speed of air flow within a continuous range of air flow speeds which is then heated by intensity of the heat output of the heating element to produce any desired heated air flow output. The hair dryer also has a control circuit electrically connected to the heating element and blower and being operable upon actuation by a pair of momentary switches to simultaneously regulate operation of the heater element and blower to produce a continuously variable heated air flow output. The continuously variable simultaneous regulation of the heat output intensity and air flow output speed is driven or powered in opposite directions by a user manually manipulating the pair of momentary switches respectively labelled "Up" and "Down".
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: July 18, 1995
    Assignee: Helen Of Troy Corporation
    Inventors: Yinon Barzilai, William Levy, Mikhail Mitelman
  • Hair styling appliance heater and control
    Patent number: 5354967
    Abstract: A low cost heater element is disclosed which is formed of a wire wound mica paper substrate and a mica paper cover and a low cost diode acting as a negative temperature coefficient of resistance NTC temperature sensor. A control circuit provides power to the heater element in proportion to the line voltage. As a result, a light weight, low cost heater element is employed for various line voltages available throughout the world. The system employs digital logic to achieve temperature sensing, power sensing and indication that the system is on and operating at the correct temperature.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: October 11, 1994
    Assignee: Helen of Troy Corporation
    Inventors: Yinon Barzilai, William Levy, Robert Sherwood
  • Upper portion of a bottle
    Patent number: D333097
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: February 9, 1993
    Assignee: Rhone-Poulenc AG Co.
    Inventors: William A. Levy, Horace Johnson, Jr.
  • Upper portion of a bottle
    Patent number: D333982
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: March 16, 1993
    Assignee: Rhone-Poulenc AG Company
    Inventors: William A. Levy, Horace Johnson, Jr.