Patents by Inventor Rob Treseder

Rob Treseder 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).

  • Cathode head having filament protection features
    Patent number: 7657002
    Abstract: A cathode assembly including certain features designed to protect the integrity of a filament contained therein is disclosed. In particular, the cathode assembly is configured to prevent damage to the filament should it inadvertently contact another portion of the cathode assembly. In an example embodiment, an x-ray tube incorporating features of the present invention is disclosed. The x-ray tube includes an evacuated enclosure containing a cathode assembly and an anode. The cathode assembly includes a head portion having a head surface. A slot is defined on the head surface and an electron-emitting filament is included in the slot. A protective surface is defined on the head surface proximate to a central portion of the filament. The protective surface in one embodiment is composed of tungsten and is configure to prevent fusing of the filament to the protective surface should the filament inadvertently contact the protective surface.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: February 2, 2010
    Assignee: Varian Medical Systems, Inc.
    Inventors: James Burke, Charles Lynn Chidester, Bruce A Cain, Rob Treseder, James Boye, Ray Daly, Ricky Smith, Paul Gene Christean