Patents by Inventor Kenneth R. Crandall

Kenneth R. Crandall 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).

  • Proton-beam therapy linac
    Patent number: 5382914
    Abstract: A compact proton-beam therapy linac utilizing a linear, cascaded organization including a proton source, a radio-frequency-quadrupole (RFQ) linac coupled to the output of the source, a stepped-frequency (around 500- to around 100-MHz), low-peak-beam-current (around 100- to around 300-.mu. A) drift-tube linac (DTL) coupled to receive the output of the RFQ, and a plural-stage, low-peak-beam-current stage-switchable, side-coupled linac (SCL) coupled to the output of the DTL for producing the ultimate output proton-therapy beam.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: January 17, 1995
    Assignee: AccSys Technology, Inc.
    Inventors: Robert W. Hamm, Kenneth R. Crandall, James M. Potter