Patents by Inventor Capleton I. Swanson

Capleton I. Swanson 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).

  • X-ray tube focusing means
    Patent number: 3962583
    Abstract: An X-ray tube comprising a tubular envelope having therein a filamentary cathode operatively disposed for directing a beam of electrons toward a spaced anode target, the cathode being insulatingly supported in a slotted open end of a focusing cup and extending longitudinally between an insulated pair of spaced conductive ears, and including means for applying respective electrical potentials to the anode, cathode, focusing cup, and each of the conductive ears.
    Type: Grant
    Filed: December 30, 1974
    Date of Patent: June 8, 1976
    Assignee: The Machlett Laboratories, Incorporated
    Inventors: William P. Holland, Capleton I. Swanson
  • Dual filament X-Ray tube
    Patent number: 3946261
    Abstract: An X-ray tube including a tubular envelope having therein two cathode filaments operatively disposed in spaced relationship with an anode target surface, one filament being made of a material suitable for low current operation and the other filament being made of a material suitable for high current operation of the X-ray tube.
    Type: Grant
    Filed: January 3, 1975
    Date of Patent: March 23, 1976
    Assignee: The Machlett Laboratories, Inc.
    Inventors: William P. Holland, Capleton I. Swanson, Jacob A. Randmer