Patents by Inventor Stephen Ford Heston

Stephen Ford Heston 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).

  • Self-regulating bimetallic diaphragm pump
    Patent number: 11486379
    Abstract: A system, method apparatus including a bimetallic mechanical pump diaphragm for fluid handling including two walls forming a chamber divided by a snap-acting bimetallic mechanical diaphragm which uses the rapid, concavity inversing, buckling transition of the diaphragm pump fluid as thermal energy in a first fluid is converted to mechanical energy to push a second fluid as the diaphragm moves from a first position to a second position in the chamber. Two sets of inlet and outlet passageways include one way valves to control the flow of the first and second fluids having different temperatures.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: November 1, 2022
    Inventors: Nathan Clark Heston, Joseph Daniel Zuchegno, Stephen Ford Heston, Maureen Najua Smith
  • SELF-REGULATING BIMETALLIC DIAPHRAGM PUMP
    Publication number: 20210079910
    Abstract: A system, method apparatus including a bimetallic mechanical pump diaphragm for fluid handling including two walls forming a chamber divided by a snap-acting bimetallic mechanical diaphragm which uses the rapid, concavity inversing, buckling transition of the diaphragm pump fluid as thermal energy in a first fluid is converted to mechanical energy to push a second fluid as the diaphragm moves from a first position to a second position in the chamber. Two sets of inlet and outlet passageways include one way valves to control the flow of the first and second fluids having different temperatures.
    Type: Application
    Filed: September 14, 2020
    Publication date: March 18, 2021
    Inventors: Nathan Clark Heston, Joseph Daniel Zuchegno, Stephen Ford Heston, MAUREEN NAJUA SMITH