Patents by Inventor Geoffrey C. Stevens

Geoffrey C. Stevens 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).

  • Solids transfer system
    Patent number: 4557637
    Abstract: Apparatus for transferring solid particles to a receptacle comprises a loading tube (2) surrounded at or near its base by a gas supply chamber (7) terminating in a Coanda surface (9). A slot (10) between the outlet from the loading tube (2) and the beginning of the Coanda surface (9) forms a Coanda nozzle. A throttle (3) is preferably fitted in the loading tube (2) to form an annulus (4) down which the particles flow to the slot (10). A gas supply line (8) preferably enters a gas supply (7) tangentially to supply gas to the Coanda nozzle. The apparatus is particularly suitable for loading catalyst into a reactor.
    Type: Grant
    Filed: November 16, 1983
    Date of Patent: December 10, 1985
    Assignee: The British Petroleum Company Limited
    Inventors: John L. Barclay, Geoffrey C. Stevens, Brian Stokes, Denis S. Ward