Patents by Inventor Mitch Terhune

Mitch Terhune 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).

  • Subsea hydraulic pressure boosting and regulating system
    Patent number: 12258980
    Abstract: A hydraulic boosting and regulating system includes an intensifier circuit and a regulator and employs low leak, low crossover valves.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: March 25, 2025
    Assignee: The Oilgear Company
    Inventors: Mitch Terhune, Jared Schlueter, Joshua B. Groves
  • Multi-function subplate mounted valve
    Patent number: 12044327
    Abstract: A normally closed subplate mounted valve has a lower valve seat defining a function port, an upper seat, and a sleeve between the upper seat and the lower seat. The sleeve defines a first port. The poppet is movable within the sleeve to selectively seal against the lower seat in a piloted position or to seal against the upper seat in an offset position. The poppet blocks the first port when the poppet is positioned in an offset position. A piston shaft is affixed to the poppet for moving the poppet into the piloted or offset position. A spring biases the poppet in the offset position for preventing fluid flow into the first port. A pilot port supplies pressure for sliding the piston to compress the spring and to move the poppet away from the offset position to the piloted position so that fluid may flow into a supply port and out of the function port. A second port may be provided in the sleeve. The ports may be selectively configured for supply or vent. Components may be joined with retainer springs.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: July 23, 2024
    Assignee: The Oilgear Company
    Inventors: Mitch Terhune, Jared Schlueter
  • SUBSEA HYDRAULIC PRESSURE BOOSTING AND REGULATING SYSTEM
    Publication number: 20230058722
    Abstract: A hydraulic boosting and regulating system includes an intensifier circuit and a regulator and employs low leak, low crossover valves.
    Type: Application
    Filed: August 1, 2022
    Publication date: February 23, 2023
    Inventors: Mitch Terhune, Jared Schlueter, Joshua B. Groves
  • Multi-function subplate mounted valve
    Patent number: 11480255
    Abstract: A normally closed subplate mounted valve has a lower valve seat defining a function port, an upper seat, and a sleeve between the upper seat and the lower seat. The sleeve defines a first port. The poppet is movable within the sleeve to selectively seal against the lower seat in a piloted position or to seal against the upper seat in an offset position. The poppet blocks the first port when the poppet is positioned in an offset position. A piston shaft is affixed to the poppet for moving the poppet into the piloted or offset position. A spring biases the poppet in the offset position for preventing fluid flow into the first port. A pilot port supplies pressure for sliding the piston to compress the spring and to move the poppet away from the offset position to the piloted position so that fluid may flow into a supply port and out of the function port. A second port may be provided in the sleeve. The ports may be selectively configured for supply or vent. Components may be joined with retainer springs.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: October 25, 2022
    Assignee: The Oilgear Company
    Inventors: Mitch Terhune, Jared Schlueter
  • MULTI-FUNCTION SUBPLATE MOUNTED VALVE
    Publication number: 20220290768
    Abstract: A normally closed subplate mounted valve has a lower valve seat defining a function port, an upper seat, and a sleeve between the upper seat and the lower seat. The sleeve defines a first port. The poppet is movable within the sleeve to selectively seal against the lower seat in a piloted position or to seal against the upper seat in an offset position. The poppet blocks the first port when the poppet is positioned in an offset position. A piston shaft is affixed to the poppet for moving the poppet into the piloted or offset position. A spring biases the poppet in the offset position for preventing fluid flow into the first port. A pilot port supplies pressure for sliding the piston to compress the spring and to move the poppet away from the offset position to the piloted position so that fluid may flow into a supply port and out of the function port. A second port may be provided in the sleeve. The ports may be selectively configured for supply or vent. Components may be joined with retainer springs.
    Type: Application
    Filed: May 27, 2022
    Publication date: September 15, 2022
    Inventors: Mitch Terhune, Jared Schlueter
  • Subsea hydraulic pressure boosting and regulating system
    Patent number: 11401954
    Abstract: A hydraulic boosting and regulating system includes an intensifier circuit and a regulator and employs low leak, low crossover valves.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: August 2, 2022
    Assignee: The Oilgear Company
    Inventors: Mitch Terhune, Jared Schlueter, Joshua B. Groves
  • SUBSEA HYDRAULIC PRESSURE BOOSTING AND REGULATING SYSTEM
    Publication number: 20210231132
    Abstract: A hydraulic boosting and regulating system includes an intensifier circuit and a regulator and employs low leak, low crossover valves.
    Type: Application
    Filed: January 4, 2021
    Publication date: July 29, 2021
    Inventors: Mitch Terhune, Jared Schlueter, Joshua B. Groves
  • MULTI-FUNCTION SUBPLATE MOUNTED VALVE
    Publication number: 20210140551
    Abstract: A normally closed subplate mounted valve has a lower valve seat defining a function port, an upper seat, and a sleeve between the upper seat and the lower seat. The sleeve defines a first port. The poppet is movable within the sleeve to selectively seal against the lower seat in a piloted position or to seal against the upper seat in an offset position. The poppet blocks the first port when the poppet is positioned in an offset position. A piston shaft is affixed to the poppet for moving the poppet into the piloted or offset position. A spring biases the poppet in the offset position for preventing fluid flow into the first port. A pilot port supplies pressure for sliding the piston to compress the spring and to move the poppet away from the offset position to the piloted position so that fluid may flow into a supply port and out of the function port. A second port may be provided in the sleeve. The ports may be selectively configured for supply or vent. Components may be joined with retainer springs.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 13, 2021
    Inventors: Mitch Terhune, John Tudor, Jared Schlueter