Patents by Inventor Ray Fleming

Ray Fleming 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).

  • Resonant plasma x-ray source
    Patent number: 6765987
    Abstract: An improved efficiency x-ray source comprised of a fluorescent x-ray tube and resonant high voltage power supply. The fluorescent x-ray tube is an arc discharge tube filled with a low-pressure vapor, xenon for example, that is excited by high-frequency, high-voltage pulses to produce x-rays. The power supply passes arcs through the tube that produce significantly more radiation per unit energy than equivalent conventional vacuum x-ray tubes. The power supply may be a high frequency resonant AC supply or it may be rectified to give resonant DC. The fluorescent tube is driven in cold cathode mode, avoiding a fragile filament. The arc gap may also be large or very small in order to serve as a broad beam source or point source.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: July 20, 2004
    Assignee: Safe Food Technologies, Inc.
    Inventors: Ray Fleming, Constantin Popa
  • Resonant power supply and apparatus for producing vacuum arc discharges
    Patent number: 6630799
    Abstract: The present invention relates to a vacuum arc discharge power supply. The power supply may be a high frequency resonant AC supply or it may be rectified to give resonant DC. The power supply of the present invention may be used in x-ray production, vacuum arc deposition equipment, vacuum metal refining, ion implantation devices, or other applications that perform vacuum arc discharge.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: October 7, 2003
    Assignee: Safe Food Technologies, Inc.
    Inventors: Ray Fleming, Constantin Popa
  • Apparatus for producing vacuum arc discharges
    Publication number: 20020131555
    Abstract: The present invention relates to a vacuum arc discharge power supply. The power supply may be a high frequency resonant AC supply or it may be rectified to give resonant DC. The power supply of the present invention may be used in x-ray production, vacuum arc deposition equipment, vacuum metal refining, ion implantation devices, or other applications that perform vacuum arc discharge.
    Type: Application
    Filed: March 15, 2001
    Publication date: September 19, 2002
    Inventors: Ray Fleming, Constantin Popa
  • Efficiency fluorescent x-ray source
    Publication number: 20020131554
    Abstract: An improved efficiency x-ray source comprised of a fluorescent x-ray tube and resonant high voltage power supply. The fluorescent x-ray tube is an arc discharge tube filled with a low-pressure vapor, xenon for example, that is excited by high-frequency, high-voltage pulses to produce x-rays. The power supply passes arcs through the tube that produce significantly more radiation per unit energy than equivalent conventional vacuum x-ray tubes. The power supply may be a high frequency resonant AC supply or it may be rectified to give resonant DC. The fluorescent tube is driven in cold cathode mode, avoiding a fragile filament. The arc gap may also be large or very small in order to serve as a broad beam source or point source.
    Type: Application
    Filed: March 15, 2001
    Publication date: September 19, 2002
    Inventors: Ray Fleming, Constantin Popa