Patents by Inventor Andre Lafitte

Andre Lafitte 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).

  • Multiple cathode X-ray tube for densitometers
    Patent number: 4292563
    Abstract: A multiple cathode X-ray tube for densitometers.This tube contains an anode assembly functioning by transmission, which is arranged along the sides of a regular convex polygon, with several cathodes, each of which sweeps one side of the polygon and a collimation device with several openings placed in front of the anode assembly to produce a series of fine, parallel and coplanar beams, the number of beams being equal to the number of openings. Such a tube makes very fast tomography possible.
    Type: Grant
    Filed: January 23, 1979
    Date of Patent: September 29, 1981
    Assignee: Compagnie Generale de Radiologie
    Inventors: Emile Gabbay, Dang Tran Quang, Andre Lafitte
  • Rotating anode X-ray tube for tomodensitometers
    Patent number: 4250425
    Abstract: A hollow, cylindrical, rotating anode, X-ray tube for tomodensitometers.This tube contains a bell-shaped, hollow, cylindrical anode functioning by transmission, which is swept on its inner surface by an electron beam and produces in cooperation with a collimation device having several openings a series of fine X-ray beams, which are roughly parallel and coplanar, the number of these beams being equal to the number of openings in the collimation device. Such a tube makes very fast tomography possible.
    Type: Grant
    Filed: January 23, 1979
    Date of Patent: February 10, 1981
    Assignee: Compagnie Generale de Radiologie
    Inventors: Emile Gabbay, Dang Tran Quand, Andre Lafitte