Patents by Inventor Douglas J. Sheahan

Douglas J. Sheahan 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).

  • Pressure responsive oil flow regulating supply valve
    Patent number: 6439261
    Abstract: A pressure responsive oil flow regulating supply valve assembly includes an oil supply input; an oil supply output; an oil flow path defined between the input and output. A valving mechanism located in the oil flow path includes a device for restricting oil flow at a first level in response to normal pressure and for restricting oil flow at a second level in response to high pressure conditions. In addition, other levels of restriction may be provided for other pressure conditions.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: August 27, 2002
    Assignee: Carrier Corporation
    Inventors: James W. Bush, Erric L. Heitmann, Douglas J. Sheahan
  • PRESSURE RESPONSIVE OIL FLOW REGULATING SUPPLY VALVE
    Publication number: 20020078996
    Abstract: A pressure responsive oil flow regulating supply valve assembly includes an oil supply input; an oil supply output; an oil flow path defined between the input and output. A valving mechanism located in the oil flow path includes a device for restricting oil flow at a first level in response to normal pressure and for restricting oil flow at a second level in response to high pressure conditions. In addition, other levels of restriction may be provided for other pressure conditions.
    Type: Application
    Filed: December 22, 2000
    Publication date: June 27, 2002
    Inventors: James W. Bush, Erric L. Heitmann, Douglas J. Sheahan