Patents by Inventor Victor Frederick Thomas

Victor Frederick Thomas 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).

  • Method and apparatus for detecting particles in a flow
    Patent number: 6192740
    Abstract: An apparatus for detecting particles in a flow comprises a probe 1 positioned so that it projects into the flow and is charged triboelectrically by the particles in the flow. An electric circuit is coupled to the probe 1 and includes evaluating means for monitoring a signal from the probe 1 and for providing an output in dependence on the signal generated by the triboelectric charging of the probe 1. The part of the probe 1 that projects into the particle flow comprises an electrically conducting core covered with an insulating layer 2 which insulates the core from the particle flow.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: February 27, 2001
    Assignee: PCME Limited
    Inventors: Victor Frederick Thomas, Michael Rigby