Patents by Inventor Spencer L. Mackay

Spencer L. Mackay 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).

  • Evaporative cooler
    Patent number: 4234526
    Abstract: An evaporative cooler having a one-piece, frameless shell secured to a bottom pan and having a top cover hinged along one edge to the side wall of the housing shell. A quick-release latching mechanism secures the top cover to the opposite side wall to hold the top cover closed while permitting the top cover to be easily opened for access to components of the evaporative cooler housed therein. Evaporative media pad assemblies have side frame members having V-shaped outer surfaces which slide in correspondingly shaped tracks in the corners of the shell to space the pad assemblies from the louvered side walls of the shell and permit the pad assemblies to be installed and removed from above with a vertical sliding movement.
    Type: Grant
    Filed: January 9, 1979
    Date of Patent: November 18, 1980
    Assignee: McGraw-Edison Company
    Inventors: Frederick G. Mackay, Spencer L. Mackay
  • Motor pump housing for a dental irrigator
    Patent number: D246667
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: December 13, 1977
    Assignee: Teledyne Industries, Inc.
    Inventors: Frederick G. Mackay, Spencer L. Mackay, Allan B. Johnson
  • Motor pump housing for a dental jet irrigator and cover therefor
    Patent number: D246668
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: December 13, 1977
    Assignee: Teledyne Industries, Inc.
    Inventors: Frederick G. Mackay, Spencer L. Mackay, Allan B. Johnson
  • Feeding spoon
    Patent number: D248009
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: May 30, 1978
    Assignee: Teledyne Industries, Inc.
    Inventors: Thomas G. Cannon, Spencer L. Mackay
  • Serving spoon
    Patent number: D248143
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: June 13, 1978
    Assignee: Teledyne Industries
    Inventors: Thomas G. Cannon, Spencer L. Mackay
  • Portable water filter
    Patent number: D249275
    Type: Grant
    Filed: March 24, 1977
    Date of Patent: September 5, 1978
    Assignee: Teledyne Industries, Inc.
    Inventors: Frederick G. Mackay, Spencer L. Mackay
  • Combined smoke and fire alarm or the like
    Patent number: D252862
    Type: Grant
    Filed: September 19, 1977
    Date of Patent: September 11, 1979
    Assignee: Teledyne Industries, Inc.
    Inventor: Spencer L. Mackay
  • Combination counter and tabulator for controlling food intake
    Patent number: D256027
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: July 22, 1980
    Assignee: Teledyne Industries, Inc.
    Inventors: Spencer L. Mackay, Frederick G. Mackay, Allan B. Johnson