Patents by Inventor Jacobus A. Thelosen

Jacobus A. Thelosen 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 examination apparatus comprising a collimator unit
    Patent number: 5680434
    Abstract: An X-ray examination apparatus includes a collimator unit (4) with a diaphragm (8) for limiting the X-ray beam (2), the circular aperture (31) of the diaphragm (8) having a first diameter for a first diaphragm and a second diameter for a second diaphragm setting. The collimator unit (4) also includes an X-ray filter (20) with detachable filter elements (21).
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: October 21, 1997
    Assignee: U.S. Philips Corporation
    Inventors: Jacobus A. Thelosen, Johan J. Dries, Bernardus H. M. Manschot
  • X-ray apparatus comprising wheels provided with cable deflector
    Patent number: 5339350
    Abstract: An X-ray apparatus includes a frame (1, 3, 5) which supports at least an X-ray source (7) and an X-ray detector (9) and is attached to a base (13) which is provided with wheels (19, 21) enabling displacement of the apparatus on an approximately horizontal floor surface. In order to prevent cables lying on the floor from colliding with the wheels (19, 21) during displacement, so that the wheels could be blocked, each of the wheels (19, 21) includes a cable deflector which consists of an approximately horizontally arranged collar (25) which is made of a rigid material and which encloses the wheel at a distance of less than 10 mm from the floor surface (39).
    Type: Grant
    Filed: December 9, 1993
    Date of Patent: August 16, 1994
    Assignee: U.S. Philips Corporation
    Inventor: Jacobus A. Thelosen