Patents by Inventor Joseph LeRoy Lehman

Joseph LeRoy Lehman 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: 10076003
    Abstract: A system for operation of an induction stove includes an AC to DC voltage converter receiving AC voltage from a power input, a voltage sensing unit coupled to the converter and including an optocoupler, and a processor coupled to the sensing unit for receiving voltage information from the unit and controlling at least one of input voltage, input current, and oscillation frequency of a heating coil of the induction stove. A method for operating an induction stove includes converting an AC voltage from a power input to a DC voltage, supplying the DC voltage to a voltage sensing unit coupled to the converter and including an optocoupler, transmitting a voltage measurement from the sensing unit to a processor, and controlling at least one of an input voltage and oscillation frequency to a heating coil of the induction stove via the processor based at least in part on the voltage measurement.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: September 11, 2018
    Assignee: Kenyon International, Inc.
    Inventors: Michael Reischmann, Phillip Williams, Ed Gilchrest, Joseph LeRoy Lehman
  • Publication number: 20160073451
    Abstract: A system for operation of an induction stove includes an AC to DC voltage converter receiving AC voltage from a power input, a voltage sensing unit coupled to the converter and comprising an optocoupler, and a processor coupled to the sensing unit for receiving voltage information from the unit and controlling at least one of input voltage, input current, and oscillation frequency of a heating coil of the induction stove. A method for operating an induction stove includes converting an AC voltage from a power input to a DC voltage, supplying the DC voltage to a voltage sensing unit coupled to the converter and comprising an optocoupler, transmitting a voltage measurement from the sensing unit to a processor, and controlling at least one of an input voltage and oscillation frequency to a heating coil of the induction stove via the processor based at least in part on the voltage measurement.
    Type: Application
    Filed: September 8, 2015
    Publication date: March 10, 2016
    Inventors: Michael Reischmann, Phillip Williams, Ed Gilchrest, Joseph LeRoy Lehman