Patents by Inventor Ann M. Libby

Ann M. Libby 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).

  • Heater with an optical sensor for over-temperature protection
    Patent number: 10736180
    Abstract: A heater with an optical sensor for over-temperature protection. The heater includes a heating element and a sensor assembly including a coupler and an optical sensor. Wavelengths emanating from the heating element passes directly through the coupler to the optical sensor. The optical sensor provides an over-temperature feedback signal for limiting power to the heating element to avoid an over-temperature condition for the heating element.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: August 4, 2020
    Assignee: TUTCO LLC
    Inventors: Jonathan B. Arold, Ronald T. Rittenhouse, Ann M. Libby
  • HEATER WITH AN OPTICAL SENSOR FOR OVER-TEMPERATURE PROTECTION
    Publication number: 20180317281
    Abstract: A heater with an optical sensor for over-temperature protection. The heater includes a heating element and a sensor assembly including a coupler and an optical sensor. Wavelengths emanating from the heating element passes directly through the coupler to the optical sensor. The optical sensor provides an over-temperature feedback signal for limiting power to the heating element to avoid an over-temperature condition for the heating element.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 1, 2018
    Applicant: TUTCO, LLC
    Inventors: Jonathan B. Arold, Ronald T. Rittenhouse, Ann M. Libby