Patents by Inventor John Seldon Ogle

John Seldon Ogle 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).

  • Method and assembly for nuclear fusion using multiple intersecting positive ion storage rings
    Publication number: 20070282672
    Abstract: The invention is an assembly and a method for producing multiple intersecting positive ion storage rings in a plasma, resulting in nuclear fusion, and to convert the energy from the resulting high energy particles into more useful forms of power. The assembly consists of alternating layers of reduced pressure fusion generation chambers containing the intersecting positive ion storage rings, and energy absorption chambers which have provisions for absorbing the energy and conveying it to external energy conversion equipment.
    Type: Application
    Filed: June 1, 2006
    Publication date: December 6, 2007
    Inventor: John Seldon Ogle
  • Plasma source with process nonuniformity improved using ferromagnetic cores
    Patent number: 5994236
    Abstract: The present invention uses the placement of ferromagnetic cores to improve the nonuniformity of plasma processing and to increase the energy transfer efficiency of plasma sources which couple energy to a plasma through the use of radio frequency current flowing through a coil adjacent to a dielectric window. In addition, eddy current conductive elements can be used either alone or in combination with ferromagnetic cores to increase the nonuniformity adjustment range.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: November 30, 1999
    Inventor: John Seldon Ogle
  • Varying multipole plasma source
    Patent number: 5944942
    Abstract: Gas diffuser bolt (35) is used to improve process gas flow from near the center of process chamber (40) across workpiece (58) to exhaust ports near the periphery of process chamber (40), process nonuniformity is improved by adjusting the vertical position of each varying magnetic pole (10) relative to two-pole rounded oblong dielectric window (22), differential driving of metal voltage reference plate (18) and workpiece electrode (60) reduce the voltage between the plasma and process chamber (40), reducing particulates and improving efficiency, and temperature control of metal voltage reference plate (18) improves process chamber (40) cleaning.
    Type: Grant
    Filed: March 4, 1998
    Date of Patent: August 31, 1999
    Inventor: John Seldon Ogle
  • Noninvasive blood flow sensor using magnetic field parallel to skin
    Patent number: 5935077
    Abstract: An improved electromagnetic blood flow sensor uses a bipolar magnetic field source to provide a varying magnetic field with a component parallel to the skin and through the blood vessel, a single sense electrode on the skin adjacent to the blood vessel, a reference electrode, and a detector that samples the sense electrode signal in synchronism to the varying magnetic field. An optional addition is a driven shield for the sense electrode to reduce the effect of noise voltages either from the magnetic field source or from stray fields.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: August 10, 1999
    Inventor: John Seldon Ogle