Patents by Inventor John F. Grote

John F. Grote 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: 6450588
    Abstract: The present invention provides an improved torque actuator control system using data inputs from an operator controlled input transducer relating to the desired torque output of a controlled member and inputs concerning the directly measured speed and torque of the controlled member. The improved torque actuator control circuit uses the inputs to generate an output command to the controlled member that results in the direct application of the desired torque output from the controlled member.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: September 17, 2002
    Assignee: Control System Technology, Inc.
    Inventors: John F. Grote, J. Denton Tarbot
  • Publication number: 20010038241
    Abstract: The present invention provides an improved torque actuator control system using data inputs from an operator controlled input transducer relating to the desired torque output of a controlled member and inputs concerning the directly measured speed and torque of the controlled member. The improved torque actuator control circuit uses the inputs to generate an output command to the controlled member that results in the direct application of the desired torque output from the controlled member.
    Type: Application
    Filed: July 3, 2001
    Publication date: November 8, 2001
    Inventors: John F. Grote, J. Denton Tarbet
  • Patent number: 6293632
    Abstract: The present invention provides an improved torque actuator control system using data inputs from an operator controlled input transducer relating to the desired torque output of a controlled member and inputs concerning the directly measured speed and torque of the controlled member. The improved torque actuator control circuit uses the inputs to generate an output command to the controlled member that results in the direct application of the desired torque output from the controlled member.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: September 25, 2001
    Inventors: John F. Grote, J. Denton Tarbet
  • Patent number: 5690276
    Abstract: A thermostat having a main valve and a secondary valve is disclosed both of which are biased closed by a single coiled compression spring and opened by a single piston. The entrance to the channel of the secondary valve is maintained at a maximum dimension of approximately 0.015 inches in order to keep undesirable particulate matter out of the valve. The surfaces within the valve channel encourage laminar flow which increases the volume of flow which can be passed through the valve while keeping the total surface area of the valve small.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: November 25, 1997
    Assignee: Caltherm
    Inventors: Peter Thiel, Don D. Hughes, John F. Grote