Patents by Inventor Gary L. Archer

Gary L. Archer 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).

  • Method for recovering solvent
    Patent number: 4917807
    Abstract: A method for cleaning a solvent which may conatin hazardous particulate material which comprises liquid and vapor portions which are being recirculated in a closed system. Suspended particulate material is filtered out of the liquid. Dissolved particulate material is removed by distilling the liquid. The vapor is condensed and combined with the clean liquid. A portion of the vapor is recirculated. The solvent may be cleaned and recirculated continuously.
    Type: Grant
    Filed: May 9, 1988
    Date of Patent: April 17, 1990
    Assignee: Westinghouse Electric Corp.
    Inventors: Anthony J. Prisco, Jr., Bruce R. Sewter, William E. Briggs, Gary L. Archer
  • Apparatus for recovering solvent
    Patent number: 4770197
    Abstract: A method for cleaning a solvent which may contain hazardous particulate material which comprises liquid and vapor portions which are being recirculated in a closed system. Suspended particulate material is filtered out of the liquid. Dissolved particulate material is removed by distilling the liquid. The vapor is condensed and combined with the clean liquid. A portion of the vapor is recirculated. The solvent may be cleaned and recirculated continuously.An apparatus for cleaning a solvent which comprises liquid and vapor portions which are being recirculated in a closed system. The apparatus comprises a cleaning chamber in which solvent may be used to remove hazardous particulate material from an article. Filters remove suspended particulate material from the liquid. A still removes dissolved particulate material. The clean liquid solvent is conveyed by a conduit to a holding chamber.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: September 13, 1988
    Assignee: Westinghouse Electric Corp.
    Inventors: Anthony J. Prisco, Jr., Bruce R. Sewter, William E. Briggs, Gary L. Archer