Patents by Inventor William B. Ferguson, Jr.

William B. Ferguson, Jr. 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).

  • Apparatus for introducing a process gas into a treatment chamber
    Patent number: 4571311
    Abstract: A process gas is introduced into a treatment chamber (40) through a horizontal spiral gas supply duct (30) having a tangential inlet (31) and opening to a pair of concentric, inner and outer annular gas inlet ducts (12,22) surrounding a liquid spray apparatus (2). Partition means (32) divide the spiral supply duct (30) into independent inner and outer sub-ducts (34,36) which define separate inner and outer flow passages (44,46) connected respectively to the inner and outer annular gas inlet ducts (12,22). Damper means (70) is provided in the inlet to the outer sub-duct (36) to selectively control the flow of process gas (7) therethrough as a means of maintaining the velocity of the flow of process gas (5) through the inner flow passage (44) above a minimum acceptable velocity.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: February 18, 1986
    Assignee: Combustion Engineering, Inc.
    Inventors: William B. Ferguson, Jr., Gerald E. Bresowar, Louis B. Wheeler