Patents by Inventor Thomas J. Froelich

Thomas J. Froelich 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).

  • Alpha-beta radiation detector
    Patent number: 5796108
    Abstract: The invention is based in part on the discovery that a plastic housing that is lightweight is surprisingly efficient inasmuch as background signals from any gamma radiation are significantly reduced by using a plastic housing instead of a metal housing. A further aspect of the present invention is the profile of the housing as a bi-linear approximation to a parabola resulting in full optical response from any location on the scintillation material to the photomultiplier tube. A yet further aspect of the present invention is that the survey probe is resistant to magnetic fields. A yet further aspect of the present invention is the use of a snap-fit retaining bracket that overcomes the need for multiple screws.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: August 18, 1998
    Assignee: Battelle Memorial Institute
    Inventors: Dale M. Fleming, Kevin L. Simmons, Thomas J. Froelich, Gregory L. Carter