Patents by Inventor Keith A. Plikuhn

Keith A. Plikuhn 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).

  • Patent number: 4522006
    Abstract: A drum with a body composed of solid wood blocks glued together. The blocks form a cylinder which constitutes the drum body with each block extending the entire thickness of the cylinder wall. The blocks lie in circular layers with each layer having a staggered orientation relative to its adjacent layers. Dowels pass through the blocks to provide greater support to the body. The upper and lower edges of the cylinder have a recessed configuration relative to the body's outer surface to provide a floating drum head. To produce the drum body, each block in a layer has its ends tapered toward the middle of the block. Where each layer includes 16 blocks, the end faces of a block have an angle of 22.5.degree. relative to each other. Gluing the blocks together forms a long cylinder having, however, rough external and internal surfaces. Milling on both the outside and the inside of the cylinder provides smooth surfaces of a pleasing appearance.
    Type: Grant
    Filed: June 13, 1983
    Date of Patent: June 11, 1985
    Inventor: Keith A. Plikuhn