Patents by Inventor Hemant Phadke

Hemant Phadke 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 control device and method of making the same
    Patent number: 4573398
    Abstract: A pressure responsive control device having a pressure housing assembly defining a pressure chamber, an actuable control fixed to the housing assembly and, a pressure transducer module hermetically closing the pressure chamber. The module includes a snap acting pressure responsive diaphragm, a diaphragm control plate hermetically bonded to the diaphragm outer periphery, and a support member hermetically joined to and supporting the control plate and hermetically joined to the housing assembly. The control plate has a supporting region rigidly supporting the diaphragm and the diaphragm control regions are yielded and deformed relative to the supporting region to position the control regions for stressing the diaphragm to determine the chamber pressure levels at which the diaphragm moves.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: March 4, 1986
    Assignee: Ranco Incorporated
    Inventors: Carl N. Johnson, Hemant Phadke, Roger L. Sieling