Patents by Inventor Max A. Witter

Max A. Witter 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).

  • Power element for refrigerant modulating valve
    Patent number: 12092382
    Abstract: An electronic modulating valve for a refrigerant system including a valve body; an electrically actuated valve member mounted in the valve body for modulating flow of fluid through the valve body; an electric power element having at least a portion of an electric actuator; and an electronic controller operably connected to the actuator, in which the actuator is operably connected to the valve member to control movement of the valve member in response to commands from the controller. The valve may include a probe configured to sense a mechanical vibration in the system and/or a refrigerant leak sensor. The controller receives information from the probe and/or leak sensor and controls movement of the valve member via the actuator in response to the information. The controller may be configured with a closed-loop logic architecture to control movement of the valve member via the electric actuator.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: September 17, 2024
    Assignee: Parker-Hannifin Corporation
    Inventors: Christian D. Parker, Max A. Witter, Craig M. Obermark
  • POWER ELEMENT FOR REFRIGERANT MODULATING VALVE
    Publication number: 20220128278
    Abstract: An electronic modulating valve for a refrigerant system including a valve body; an electrically actuated valve member mounted in the valve body for modulating flow of fluid through the valve body; an electric power element having at least a portion of an electric actuator; and an electronic controller operably connected to the actuator, in which the actuator is operably connected to the valve member to control movement of the valve member in response to commands from the controller. The valve may include a probe configured to sense a mechanical vibration in the system and/or a refrigerant leak sensor. The controller receives information from the probe and/or leak sensor and controls movement of the valve member via the actuator in response to the information. The controller may be configured with a closed-loop logic architecture to control movement of the valve member via the electric actuator.
    Type: Application
    Filed: March 26, 2020
    Publication date: April 28, 2022
    Inventors: Christian D. Parker, Max A. Witter, Craig M. Obermark