Patents by Inventor William T. Hart

William T. Hart 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: 8584612
    Abstract: A UV lamp assembly having rotary shutters. Each rotary shutter has a concave wall with a reflective concave surface. The rotary shutters can be collectively rotated between an open position and an closed position. At the open position, the rotary shutters do not block UV light of UV lamps from leaving the UV lamp assembly while at the closed position the rotary shutters block UV light from leaving the UV lamp assembly.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: November 19, 2013
    Assignee: Lam Research Corporation
    Inventors: William T. Hart, Fred Dennis Egley
  • Publication number: 20110146705
    Abstract: A UV lamp assembly having rotary shutters. Each rotary shutter has a concave wall with a reflective concave surface. The rotary shutters can be collectively rotated between an open position and an closed position. At the open position, the rotary shutters do not block UV light of UV lamps from leaving the UV lamp assembly while at the closed position the rotary shutters block UV light from leaving the UV lamp assembly.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Applicant: Lam Research Corporation
    Inventors: William T. Hart, Fred Dennis Egley
  • Publication number: 20100163043
    Abstract: The present invention is embodied in a portable self contained ventilating appliance, including an interface device coupled to at least one of an oral cavity or nasal cavity of a user, a ventilation device physically extending from the interface and configured to deliver pressurized air to the user through the interface, and a sensor monitoring system coupled to the interface and the ventilation device and configured to monitor the user.
    Type: Application
    Filed: June 25, 2009
    Publication date: July 1, 2010
    Inventors: William T. Hart, Edmond A. DeFrank, Cesar Bandera
  • Patent number: 5957133
    Abstract: An appliance is provided for installation within the mouth of an individual to prevent obstruction of the natural airway of the individual and to enhance natural ventilation during sleep. The appliance is hollow and constructed of material which is custom-molded to the user. An external negative air supply is provided which connects to a tube extending from the appliance and draws air from the hollow appliance creating a partial vacuum in the user's retroglossal area urging the user's tongue and soft palate away from the user's posterior pharyngeal wall and thereby opening an airway to the user's nasal cavity. A sensor provides control information to the negative air supply by sensing relative pressure in the user's oral cavity. The natural breathing cycle is thus facilitated but not controlled by the appliance.
    Type: Grant
    Filed: July 21, 1997
    Date of Patent: September 28, 1999
    Inventor: William T. Hart
  • Patent number: 5950624
    Abstract: An appliance is provided for installation within the mouth of an individual to prevent obstruction of the natural airway of the individual and to enhance natural ventilation during sleep. The appliance is hollow and is custom-molded to the oral cavity for biasing tissues surrounding the user's natural airway to keep the airway open. An external positive air supply is also provided which connects to a tube extending from the appliance and forces air through the hollow appliance to a rear opening of the appliance in the user's retroglossal area. A sensor provides control information to the positive air supply by sensing relative pressure in the user's oral cavity. The natural breathing cycle is thus enhanced but not controlled by the appliance.
    Type: Grant
    Filed: April 2, 1997
    Date of Patent: September 14, 1999
    Inventor: William T. Hart
  • Patent number: 5884625
    Abstract: An appliance is provided for installation within the mouth of an individual to prevent obstruction of the natural airway of the individual and to enhance natural ventilation during sleep. The appliance is hollow and is custom-molded to the oral cavity for biasing tissues surrounding the user's natural airway to keep the airway open. An external positive air supply is also provided which connects to a tube extending from the appliance and forces air through the hollow appliance to a rear opening of the appliance in the user's retroglossal area. A sensor provides control information to the positive air supply by sensing relative pressure in the user's oral cavity. The natural breathing cycle is thus enhanced but not controlled by the appliance.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: March 23, 1999
    Inventor: William T. Hart
  • Patent number: D363683
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: October 31, 1995
    Inventors: Dianna L. Spurgeon, D. Scott Spurgeion, Shirley D. Hart, William T. Hart