Patents by Inventor Arthur S. Dwyer

Arthur S. Dwyer 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).

  • Microwave dipole probe for in vivo localized hyperthermia
    Patent number: 4612940
    Abstract: A microwave dipole probe for in vivo localized hyperthermia includes an outer conductor and an inner conductor extending through and beyond the outer conductor. The portion of the inner conductor extending beyond the outer conductor is expanded in diameter relative to the portion within the outer conductor. A dielectrically loaded phase reversal sleeve is folded over the outside of the outer conductor and contains a dielectric loading material similar to the dielectric constant of the in vivo target volume.
    Type: Grant
    Filed: May 9, 1984
    Date of Patent: September 23, 1986
    Assignee: SCD Incorporated
    Inventors: Raymond S. Kasevich, Arthur S. Dwyer, Bart G. Guerreri
  • In situ radio frequency selective heating system
    Patent number: 4457365
    Abstract: The process and apparatus for extracting the products of kerogen in situ from an oil shale body by supplying energy selectively to the kerogen by high frequency electric fields in the frequency range between 100 kilohertz and 1000 megahertz at an intensity which heats the kerogen to a temperature range between 250.degree. C. and 500.degree. C. to allow pyrolysis of the kerogen prior to substantial heat transfer to the surrounding mineral portions of the oil shale. A plurality of groups of spaced radiators produce the electric fields for heating the kerogen. A dipole radiator in the subsurface formation is supplied with electromagnetic energy through a transmission line from an energy generator on the surface.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: July 3, 1984
    Assignee: Raytheon Company
    Inventors: Raymond S. Kasevich, Myer Kolker, Arthur S. Dwyer
  • In situ radio frequency selective heating process and system
    Patent number: 4301865
    Abstract: The process and apparatus for extracting the products of kerogen in situ from an oil shale body by supplying energy selectively to the kerogen by high frequency electric fields in the frequency range between 100 kilohertz and 1000 megahertz at an intensity which heats the kerogen to a temperature range between 250.degree. C. and 500.degree. C. to allow pyrolysis of the kerogen prior to substantial heat transfer to the surrounding mineral portions of the oil shale.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: November 24, 1981
    Assignee: Raytheon Company
    Inventors: Raymond S. Kasevich, Myer Kolker, Arthur S. Dwyer
  • In situ radio frequency selective heating process
    Patent number: 4140179
    Abstract: The process and apparatus for extracting the products of kerogen in situ from an oil shale body by supplying energy selectively to the kerogen by high frequency electric fields in the frequency range between 100 kilohertz and 1000 megahertz at an intensity which heats the kerogen to a temperature range between 250.degree. C. and 500.degree. C. to allow pyrolysis of the kerogen prior to substantial heat transfer to the surrounding mineral portions of the oil shale.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: February 20, 1979
    Assignee: Raytheon Company
    Inventors: Raymond S. Kasevich, Myer Kolker, Arthur S. Dwyer