Patents by Inventor David W. Owens

David W. Owens 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).

  • Angle of repose valve
    Patent number: 5205998
    Abstract: An apparatus and process for maintaining the purity of solid/granular product and dispensing high purity granular product from a vessel. A noncontaminating surface is provided by a cup, cylinder, or other structure having a surface of silicon, silicon carbide, silicon nitride, sialon, or similar materials and preferably operates as an angle of repose valve in a pressurized system to prevent contamination by undue contact of the high purity product with conventional gastight valves such as ball valves, butterfly valves, pinch valves, etc.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: April 27, 1993
    Assignee: Ethyl Corporation
    Inventors: James E. Boone, David W. Owens, Robert E. Farritor, Wesley D. Blank
  • Angle of repose valve
    Patent number: 5202099
    Abstract: An apparatus and process for maintaining the purity of solid/granular product and dispensing high purity granular product from a vessel. A noncontaminating surface is provided by a cup, cylinder, or other structure having a surface of silicon, silicon carbide, silicon nitride, sialon, or similar materials and preferably operates as an angle of repose valve in a pressurized system to prevent contamination by undue contact of the high purity product with conventional gastight valves such as ball valves, butterfly valves, pinch valves, etc.
    Type: Grant
    Filed: October 26, 1989
    Date of Patent: April 13, 1993
    Assignee: Ethyl Corporation
    Inventors: James E. Boone, David W. Owens, Robert E. Farritor, Wesley D. Blank
  • Production of silicon
    Patent number: 5059410
    Abstract: An apparatus and process for maintaining the purity of solid/granular product and dispensing high purity granular product from a vessel. A noncontaminating surface is provided by a cup, cylinder, or other structure having a surface of silicon, silicon carbide, silicon nitride, sialon, or similar materials and preferably operates as an angle of repose valve in a pressurized system to prevent contamination by undue contact of the high purity product with conventional gastight valves such as ball valves, butterfly valves, pinch valves, etc.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: October 22, 1991
    Assignee: Ethyl Corporation
    Inventors: James E. Boone, David W. Owens, Robert E. Farritor, Wesley D. Blank
  • Portable sprinkler and process for fighting fires in oil refineries and the like
    Patent number: 4836291
    Abstract: A special self-erecting portable sprinkler is provided to effectively and efficiently fight fires in oil refineries, petrochemical plants, and the like from a remote safe position.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: June 6, 1989
    Assignee: Amoco Corporation
    Inventors: David W. Owens, Jack E. Propp
  • Fluidized bed reactor
    Patent number: 4806317
    Abstract: An apparatus for maintaining the purity of solid/granular product and dispensing high purity granular product from a vessel. A noncontaminating surface is provided by a cup, cylinder, or other structure having a surface of silicon, silicon carbide, silicon nitride, sialon, or similar materials and preferably operates as an angle of repose valve in a pressurized system to prevent contamination by undue contact of the high purity product with conventional gastight valves such as ball valves, butterfly valves, pinch valves, etc.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: February 21, 1989
    Assignee: Ethyl Corporation
    Inventors: James E. Boone, David W. Owens, Robert E. Farritor, Wesley D. Blank
  • Sprinkler for fighting fires in oil refineries and the like
    Patent number: D313459
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: January 1, 1991
    Assignee: Amoco Corporation
    Inventors: Jack E. Propp, David W. Owens
  • Sprinkler for fighting petroleum fires and the like
    Patent number: D313834
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: January 15, 1991
    Assignee: Amoco Corporation
    Inventors: David W. Owens, Jack E. Propp