Patents by Inventor Earl E. Dozier

Earl E. Dozier 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).

  • Extractor cup on a miniature x-ray tube
    Patent number: 7130380
    Abstract: Methods for connecting electrical potential to an extractor cup at the cathode of a miniature x-ray tube are disclosed. The various connection schemes are designed to form a rugged and conveniently manufacturable connection between the metal extractor cup and one side of the cathode filament, so that the extractor cup shapes the path of electrons as desired en route to the anode of the tube. Some of the disclosed connections involve evaporation of conductive metal or other materials off the filament when the filament is first activated. Others involve applying a paste or paint conductive precursor directly to a base to connect a post and the extractor, the paste being heat-cured after the completion of assembly. Others involve a fine wire or spring strip from one filament post to the walls of the extractor cup. Other schemes include welded or brazed wires or foil, crimping, pinching, swaging and other connections, all made inside the tube enclosure.
    Type: Grant
    Filed: March 13, 2004
    Date of Patent: October 31, 2006
    Assignee: Xoft, Inc.
    Inventors: Paul A. Lovoi, Petre H. Vatahov, Earl E. Dozier, Peter C. Smith, Leonard Reed, Robert G. Neimeyer
  • Extractor cup on a miniature x-ray tube
    Patent number: 7130381
    Abstract: Methods for connecting electrical potential to an extractor cup at the cathode of a miniature x-ray tube are disclosed. The various connection schemes are designed to form a rugged and conveniently manufacturable connection between the metal extractor cup and one side of the cathode filament, so that the extractor cup shapes the path of electrons as desired en route to the anode of the tube. Some of the disclosed connections involve evaporation of conductive metal or other materials off the filament when the filament is first activated. Others involve applying a paste or paint conductive precursor directly to a base to connect a post and the extractor, the paste being heat-cured after the completion of assembly. Others involve a fine wire or spring strip from one filament post to the walls of the extractor cup. Other schemes include welded or brazed wires or foil, crimping, pinching, swaging and other connections, all made inside the tube enclosure.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: October 31, 2006
    Assignee: Xoft, Inc.
    Inventors: Paul A. Lovoi, Petre H. Vatahov, Earl E. Dozier, Peter C. Smith, Leonard Reed, Robert G. Neimeyer