Patents by Inventor Alvin D. Willis

Alvin D. Willis 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: 4606733
    Abstract: The invention relates to a turkey call device for reliably producing accurately simulated calls of a wild turkey. The device includes a sound box (10) having an acoustical chamber (26). An elongated rod (34) is carried in opposing sidewalls of the box for reciprocating motion and has affixed thereto a striker block (40). A striker peg (42) depends downwardly from the striker block to make a predetermined angle with a slate striker plate (22). A biasing spring connected between a point (48) on the striker block and a point (46) on the box has a line of force parallel to the line of contact between a peg contact surface (42b) and the striker plate (22). By locating the striker peg (42) between the elongated rod (34) and the biasing spring (44), wear of the plexiglass striker plate is automatically compensated for.
    Type: Grant
    Filed: February 4, 1985
    Date of Patent: August 19, 1986
    Inventor: Alvin D. Willis