Patents by Inventor Charles D. Wortham

Charles D. Wortham 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: 5014430
    Abstract: A plywood saw for cutting single or multiple plies of plywood, which saw is characterized by an elongated barrel fitted with a jigsaw at one end, a drive rod extending through the barrel and having one end connected to the reciprocating jigsaw blade mount and a blade pivotally attached to the opposite end of the drive rod and to a bracket mounted on the barrel for cutting sheets of plywood or individual plies thereof. Both curved and straight blades may be attached to the drive rod and bracket in the plywood saw, a "kill" switch is provided on a first handle extending from the barrel and a switch for operating the jigsaw is mounted on a second handle fitted to the barrel.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: May 14, 1991
    Inventor: Charles D. Wortham
  • Patent number: 4475301
    Abstract: A floating fish-attracting device having both submerged and surface fish-attraction features, which device includes an inflated vehicle tire inner tube, an upper and lower disk secured to the inner tube and carrying an elongated bait container support at one end, and a bait container submerged beneath the inner tube and attached to the opposite end of the bait container support. In one embodiment the bait container is provided with multiple holes to facilitate placing minnows and/or other aquatic bait inside the bait container. A first light is provided in a sealed housing above the bait container for illuminating the minnows or other aquatic life in the container and a second housing and light are mounted on the top disk above the surface of the water, along with a system of batteries and switches for controlling illumination of the lights in the upper and lower housings.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: October 9, 1984
    Inventor: Charles D. Wortham