Patents by Inventor Clayton Elkins

Clayton Elkins 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).

  • Pulverulent material metering and delivery system and method
    Patent number: 4085976
    Abstract: A metering and delivery system for feeding finely powdered coal to a combustion chamber includes a hopper containing finely ground coal, a vertical feed pipe extends from the hopper and a horizontal metering conduit is connected to the lower end of the feed pipe so that the coal provides a surface of repose in the metering conduit below an air flow opening with a bleed opening being downstream of the air flow opening. A venturi jet housing provides suction on the metering conduit drawing ambient air into the openings to entrain coal for injection by an injector lance into a combustion space. Metering of the coal is provided by inversely operated valves through which ambient air flows to the openings in the metering conduit.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: April 25, 1978
    Assignee: General Shale Products Corporation
    Inventors: Joseph Franklin Edwards, Johnny Milton Brown, James Vernon Christian, Clayton Elkins
  • Pulverulent material metering and delivery system and method
    Patent number: 4002372
    Abstract: A metering and delivery system for feeding finely powdered coal to a combustion chamber includes a hopper containing finely ground coal, a vertical feed pipe extends from the hopper and a horizontal metering conduit is connected to the lower end of the feed pipe so that the coal provides a surface of repose in the metering conduit below an air flow opening with a bleed opening being downstream of the air flow opening. A venturi jet housing provides suction on the metering conduit drawing ambient air into the openings to entrain coal for injection by an injector lance into a combustion space. Metering of the coal is provided by inversely operated valves through which ambient air flows to the openings in the metering conduit.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: January 11, 1977
    Assignee: General Shale Products Corporation
    Inventors: Joseph Franklin Edwards, Johnny Milton Brown, James Vernon Christian, Clayton Elkins