Patents by Inventor Daniel W. Bowman

Daniel W. Bowman 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).

  • Valve stem thrust measurement system
    Patent number: 5453626
    Abstract: A motor-operated-valve control system has a load cell positioned between a thrust bearing and a thrust seat in a stem housing of a motor-operated valve. The load cell is preferably toroidal with a stem-access aperture. Electrical leads from the load cell can be interfaced with readout and remote-control instrumentation.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: September 26, 1995
    Inventors: Angelo V. DiSpigna, Daniel W. Bowman, William J. Brewer, Clifford K. Eubanks