Patents by Inventor Robert J Richter-Sand

Robert J Richter-Sand 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).

  • Patent number: 6934165
    Abstract: A new power supply topology is described consisting of an input h-bridge or half-h-bridge, a low coupling coefficient transformer such as an air core transformer, a secondary resonant circuit, and a voltage multiplier which includes a series output capacitance. The topology is advantageous for high voltages since the reduced coupling leads to large spacings reduced insulation requirements.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: August 23, 2005
    Assignee: North Star Power Engineering, Inc.
    Inventors: Richard John Adler, Bruce Ashcraft, Robert J Richter-Sand
  • Publication number: 20040208025
    Abstract: A new power supply topology is described consisting of an input h-bridge or half-h-bridge, a coupling coefficient transformer such as an air core transformer, a secondary resonant and a voltage multiplier which includes a series output capacitance. The topology is advantageous for high voltages since the reduced coupling leads to large spacings reduced insulation requirements.
    Type: Application
    Filed: February 4, 2003
    Publication date: October 21, 2004
    Inventors: Richard John Adler, Bruce Ashcraft, Robert J. Richter-Sand
  • Patent number: 6278115
    Abstract: Transmission and scatter detectors for an x-ray inspection system preferably employing a moving pencil beam comprise a solid plastic scintillating material having a front planar surface that is impinged by incident x-ray energy. The detectors also include light detectors that are cooperatively mounted to the plastic scintillating material to detect photons within the plastic scintillating material created in response to x-rays incident on the front planar surface. The detector may be a transmission detector or a scatter detector. The detectors of the present invention are relatively thin in comparison to prior art detectors, which allows shielding to be reduced. In addition, the detectors of the present invention have a greater efficiency of detection in comparison to the prior art detectors.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: August 21, 2001
    Assignees: AnnisTech, Inc., North Star Research Corporation
    Inventors: Martin Annis, Richard J. Adler, Robert J. Richter-Sand