Patents by Inventor James Edward Thomas

James Edward Thomas 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: 6307190
    Abstract: A system is disclosed for carrying out microwave assisted chemical reactions. The system includes a source of microwave radiation, a cavity in communication with the source, a plurality of reaction vessels in the cavity, a pressure line in fluid communication with at least one of the reaction vessels, a pressure transducer in communication with the pressure line, an electrical connector for the transducer in a wall of the cavity, and a shield around the connector that prevents microwaves launched into the cavity from interfering with electrical signals transmitted through the connector.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: October 23, 2001
    Assignee: CEM Corporation
    Inventor: James Edward Thomas
  • Publication number: 20010025851
    Abstract: A system is disclosed for carrying out microwave assisted chemical reactions. The system includes a source of microwave radiation, a cavity in communication with the source, a plurality of reaction vessels in the cavity, a pressure line in fluid communication with at least one of the reaction vessels, a pressure transducer in communication with the pressure line, an electrical connector for the transducer in a wall of the cavity, and a shield around the connector that prevents microwaves launched into the cavity from interfering with electrical signals transmitted through the connector.
    Type: Application
    Filed: June 5, 2001
    Publication date: October 4, 2001
    Inventor: James Edward Thomas
  • Patent number: 6281484
    Abstract: A system is disclosed for carrying out microwave assisted chemical reactions. The system includes a source of microwave radiation, a cavity in communication with the source, a plurality of reaction vessels in the cavity, a pressure line in fluid communication with at least one of the reaction vessels, a pressure transducer in communication with the pressure line, an electrical connector for the transducer in a wall of the cavity, and a shield around the connector that prevents microwaves launched into the cavity from interfering with electrical signals transmitted through the connector.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: August 28, 2001
    Assignee: CEM Corporation
    Inventor: James Edward Thomas
  • Patent number: 6246038
    Abstract: A microwave vessel system for external and noninvasive pressure monitoring and control is disclosed. The system comprises a reaction vessel formed of a material that is transparent to microwave radiation, with the reaction vessel including a portion that is movable under pressure generated by a chemical reaction inside the vessel while maintaining the reaction sealed inside the vessel. A sensor is adjacent to the movable portion of the vessel for detecting the motion of the movable portion as the portion responds to pressure generated inside the vessel. The system includes means for maintaining the sensor against the movable portion while microwaves are applied to the vessel so that the movement of the movable portion under pressure is detected by the sensor.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: June 12, 2001
    Assignee: CEM Limited, LLC
    Inventors: James Edward Thomas, Wyatt Price Hargett, Jr., Edward Earl King
  • Publication number: 20010002016
    Abstract: A system is disclosed for carrying out microwave assisted chemical reactions. The system includes a source of microwave radiation, a cavity in communication with the source, a plurality of reaction vessels in the cavity, a pressure line in fluid communication with at least one of the reaction vessels, a pressure transducer in communication with the pressure line, an electrical connector for the transducer in a wall of the cavity, and a shield around the connector that prevents microwaves launched into the cavity from interfering with electrical signals transmitted through the connector.
    Type: Application
    Filed: January 21, 1999
    Publication date: May 31, 2001
    Applicant: STANLEY B. BAKER
    Inventor: JAMES EDWARD THOMAS
  • Patent number: 6136276
    Abstract: A self venting sealable vessel system for microwave assisted chemistry is disclosed. The system includes a vessel formed of a microwave-transparent material, one end of which forms an opening for placing materials inside the vessel, a lid for being seated against the opening, a flexible frame surrounding the vessel and lid and formed of a microwave-transparent material, and means for urging the frame against the vessel and seated lid with a predetermined force to seal the vessel at low pressures and so that the frame refrains from flexing until the pressure inside the vessel exceeds the predetermined force, after which the frame flexes sufficiently to allow the lid to unseat and gases to vent safely from the vessel without rupturing the vessel or the frame.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: October 24, 2000
    Assignee: CEM Corporation
    Inventors: Wyatt Price Hargett, Jr., James Edward Thomas, Matthew Donald Barrett
  • Patent number: 6124582
    Abstract: A microwave vessel system for external and noninvasive pressure monitoring and control is disclosed. The system comprises a reaction vessel formed of a material that is transparent to microwave radiation, with the reaction vessel including a portion that is movable under pressure generated by a chemical reaction inside the vessel while maintaining the reaction sealed inside the vessel. A sensor is adjacent to the movable portion of the vessel for detecting the motion of the movable portion as the portion responds to pressure generated inside the vessel. The system includes means for maintaining the sensor against the movable portion while microwaves are applied to the vessel so that the movement of the movable portion under pressure is detected by the sensor.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: September 26, 2000
    Assignee: CEM Corporation
    Inventors: James Edward Thomas, Wyatt Price Hargett, Jr., Edward Earl King
  • Patent number: 6086826
    Abstract: A microwave vessel system for external and noninvasive pressure monitoring and control is disclosed. The system comprises a reaction vessel formed of a material that is transparent to microwave radiation, with the reaction vessel including a portion that is movable under pressure generated by a chemical reaction inside the vessel while maintaining the reaction sealed inside the vessel. A sensor is adjacent to the movable portion of the vessel for detecting the motion of the movable portion as the portion responds to pressure generated inside the vessel. The system includes a structure for maintaining the sensor against the movable portion while microwaves are applied to the vessel so that the movement of the movable portion under pressure is detected by the sensor.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: July 11, 2000
    Assignee: CEM Corporation
    Inventors: James Edward Thomas, Wyatt Price Hargett, Jr., Edward Earl King