Patents by Inventor Drew Nieminen

Drew Nieminen 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).

  • Power chain saw unit for cutting notches in a series of wooden roof rafters
    Patent number: 4937943
    Abstract: A guide shoe of a power chain saw unit is movable along a series of side-by-side roof rafters. A power chain saw of the power chain saw unit is connected to the guide shoe by rigid rods. When operated, the power chain saw cuts notches in the roof rafters in the direction of travel of the guide shoe. Fixed to the guide shoe are upstanding plates formed with arcuate slots. The ends of the rigid rods adjacent the upstanding plates are releasably secured along the arcuate slots of the upstanding plates for locking the power chain saw in various selected angular positions relative to the guide shoe for controlling the depth of the notches and the cutting angle of the chain saw blade of the power chain saw.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: July 3, 1990
    Inventor: Drew Nieminen