Patents by Inventor Barry R. Crandall

Barry R. Crandall 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).

  • Temperature control device for fluid filled pad
    Patent number: 5183039
    Abstract: A control circuit for a fluid-filled heating pad is described. The control circuit is unique in that it includes a thermistor that is located in close proximity to the heating pad. The circuit is also unique in that it includes a single high-precision reference resistor to self-calibrate the control circuitry.
    Type: Grant
    Filed: August 23, 1991
    Date of Patent: February 2, 1993
    Assignee: Baxter International Inc.
    Inventors: Grigor Sarian, Barry R. Crandall, Jeff R. Duncan