Patents Represented by Attorney Fraser Trebilcock

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  • Drum lifter
    Patent number: 8342585
    Abstract: A drum lifter for lifting and moving empty and full chimed and unchimed drums. The lifter includes a cross member with grippers at each end. The grippers include a cam block with a cam rotatably mounted in the cam block.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: January 1, 2013
    Inventors: Edward L. Cooper, Kevin L. Copeland, Steven J. Hayes
  • Firestop drain assembly
    Patent number: 8191330
    Abstract: A firestop drain assembly for mounting in a partition to prevent fire on one side of the partition from moving through the firestop drain assembly to the other side of the partition. The firestop drain assembly can achieve an F-rating and a T-rating of at least one (1) hour.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: June 5, 2012
    Inventor: Kenneth R. Cornwall