Patents Represented by Law Firm Gifford, Groh, Sprinkle, Patmore and Sprinkle
  • Patent number: 4979304
    Abstract: A T square shaped guide has a cutting device movable along its tongue section which is clamped at a desired distance from the head of the T square. Cutting is accomplished by movement of the T square with its clamped cutter along an edge of the material to be cut to a desired width. The cutting device employs cutting wheels arranged parallel to the T square head.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: December 25, 1990
    Assignees: Bradley J. Sprague, Bruce Brewin
    Inventor: Russel C. Sprague
  • Patent number: 4970970
    Abstract: An incinerator for drying then cleanly burning trash. The incinerator includes an upper rotating trash drying tumbler for receiving and drying trash and a lower rotating trash burning tumbler interconnected to the upper tumbler for receiving dried trash therefrom. The lower rotating tumbler includes a meshed screen thereabout for complete combustion of the trash therein. The heat produced from the burning trash in the lower tumbler causes the drying of trash in the upper tumbler. A rotating fire tray is situated below the lower tumbler for collecting and reburning any material falling from the lower tumbler and for retaining combustible material for igniting the dried trash in the lower tumbler. When the interior temperature of the incinerator is high enough, the trash in the lower tumbler is self-ignited and heat produced from burning material in the fire tray is no longer necessary. Air exhausted from the drying and burning of the trash is filtered before being exhausted into the atmosphere.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: November 20, 1990
    Assignee: Avery Solid Waste Incineration Co.
    Inventor: Alfred J. Avery