Patents by Inventor Karl J. Stout

Karl J. Stout 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).

  • Gamma camera with reflectivity mask
    Patent number: 4058727
    Abstract: A gamma camera with a plurality of photodetectors arranged for locating flashes of light produced by a scintillator in response to incident radiation. Masking material is arranged in a radially symmetric pattern on the front face of the scintillator about the axis of each photodetector to reduce the amount of internal reflection of optical photons induced by gamma ray photons.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: November 15, 1977
    Assignee: Raytheon Company
    Inventor: Karl J. Stout
  • Scanning gamma camera
    Patent number: 4012636
    Abstract: A scanning system for a gamma camera providing for the overlapping of adjacent scan paths. A collimator mask having tapered edges provides for a graduated reduction in intensity of radiation received by a detector thereof, the reduction in intensity being graduated in a direction normal to the scanning path to provide a blending of images of adjacent scan paths.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: March 15, 1977
    Assignee: Raytheon Company
    Inventors: Lawrence W. Engdahl, John F. Batter, Jr., Karl J. Stout
  • Gamma camera display system
    Patent number: 3980886
    Abstract: In a gamma camera having an array of photomultipliers coupled via pulse shaping circuitry and a resistor weighting circuit to a display for forming an image of a radioactive subject, the improvement being a linearizing circuit coupled to the weighting circuit, the linearizing circuit including a nonlinear feedback circuit with diode coupling to the weighting circuit for linearizing the correspondence between points of the display and points of the subject.
    Type: Grant
    Filed: October 17, 1975
    Date of Patent: September 14, 1976
    Assignee: Raytheon Company
    Inventor: Karl J. Stout
  • Radiation sensing device
    Patent number: 3953735
    Abstract: A radiation sensing device including a collimator, a disc-shaped scintillation crystal in close proximity thereto; at least three substantially parallel photomultiplier tubes adjacent to one side of the scintillator and circuitry for locating a scintillation in the crystal. In particular, the circuitry includes a diode bias to correct for distortion and non-uniformity which results from placing the photomultiplier tubes adjacent to the scintillator.
    Type: Grant
    Filed: October 15, 1974
    Date of Patent: April 27, 1976
    Assignee: Ohio Nuclear, Inc.
    Inventor: Karl J. Stout
  • Gamma camera display system
    Patent number: 3942011
    Abstract: In a gamma camera having an array of photomultipliers coupled via pulse shaping circuitry and a resistor summing and weighting circuit to a display for forming an image of a radioactive target, the improvement being a modulation circuit for reducing the intensity of points on the display located at positions corresponding to positions of the photomultipliers for removing an apparent image of the array.
    Type: Grant
    Filed: December 23, 1974
    Date of Patent: March 2, 1976
    Assignee: Raytheon Company
    Inventor: Karl J. Stout