Patents by Inventor Jeffery S. Pawley

Jeffery S. Pawley 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).

  • Sorting machine using dual frequency optical detectors
    Patent number: 5631460
    Abstract: A photo-optical detector for use in a multi-chromatic sorting machine, each detector including at least two separate photodiode materials responsive to a different spectral range and a multi-peak optical filter having transmission response characteristics that are respectively defined in a frequency spectrum of the respective spectral ranges of the materials. The sorting machine using such detectors can be selectively programmed using the various resulting signals from the detectors after appropriate amplification and threshold detection to cause resulting ejection mechanism activation.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: May 20, 1997
    Assignee: Satake USA Inc.
    Inventors: Calvin G. Gray, Jeffery S. Pawley
  • Sorting machine using dual frequency optical detectors
    Patent number: 5508512
    Abstract: A photo-optical detector for use in a multichromatic sorting machine, each detector including at least two separate photodiode materials responsive to a different spectral range and a multipeak optical filter having transmission response characteristics that are respectively defined in a frequency spectrum of the respective spectral ranges of the materials. The sorting machine using such detectors can be selectively programmed using the various resulting signals from the detectors after appropriate amplification and threshold detection to cause resulting ejection mechanism activation.
    Type: Grant
    Filed: January 24, 1995
    Date of Patent: April 16, 1996
    Assignee: ESM International Inc.
    Inventors: Calvin G. Gray, Jeffery S. Pawley