Patents by Inventor Sheari A. Rice

Sheari A. Rice 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: 7990078
    Abstract: A lighting control system suitable for a surgical lighting device. The lighting control system includes circuitry that compensates for the effects of temperature changes in a lighting device, and that compensates for forward voltage variations among LED lighting modules to provide substantially uniform light output.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: August 2, 2011
    Assignee: American Sterilizer Company
    Inventors: James A. Petrucci, Terry A. Drabinski, David A. Hite, Sheari A. Rice
  • Patent number: 7812551
    Abstract: A lighting control method for maintaining substantially uniform light output from an LED light source during a warm-up period. A ramp duty cycle function gradually increases the duty cycle of an LED drive output signal during the warm-up period of the LED light source.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: October 12, 2010
    Assignee: American Sterilizer Company
    Inventors: David A. Hite, Sheari A. Rice
  • Publication number: 20100156304
    Abstract: A lighting control system suitable for a surgical lighting device. The lighting control system includes circuitry that compensates for the effects of temperature changes in a lighting device, and that compensates for forward voltage variations among LED lighting modules to provide substantially uniform light output.
    Type: Application
    Filed: March 3, 2010
    Publication date: June 24, 2010
    Inventors: James A. Petrucci, Terry A. Drabinski, David A. Hite, Sheari A. Rice
  • Patent number: 7701151
    Abstract: A lighting control system suitable for a surgical lighting device. The lighting control system includes circuitry that compensates for the effects of temperature changes in a lighting device, and that compensates for forward voltage variations among LED lighting modules to provide substantially uniform light output.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: April 20, 2010
    Assignee: American Sterilizer Company
    Inventors: James A. Petrucci, Terry A. Drabinski, David A. Hite, Sheari A. Rice
  • Publication number: 20090179595
    Abstract: A lighting control method for maintaining substantially uniform light output from an LED light source during a warm-up period. A ramp duty cycle function gradually increases the duty cycle of an LED drive output signal during the warm-up period of the LED light source.
    Type: Application
    Filed: March 25, 2009
    Publication date: July 16, 2009
    Inventors: David A. Hite, Sheari A. Rice
  • Publication number: 20090102396
    Abstract: A lighting control system suitable for a surgical lighting device. The lighting control system includes circuitry that compensates for the effects of temperature changes in a lighting device, and that compensates for forward voltage variations among LED lighting modules to provide substantially uniform light output.
    Type: Application
    Filed: October 19, 2007
    Publication date: April 23, 2009
    Inventors: James A. Petrucci, Terry A. Drabinski, David A. Hite, Sheari A. Rice