Patents by Inventor Boyd A. Stoffel

Boyd A. Stoffel 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: 5097618
    Abstract: An electronic ice fishing system provides an enhanced alert to a fisherman of a fish strike. The electronic ice fishing system comprises an electric circuit with a radio transmitter and a magnetic reed switch encased in a weatherproof housing. The housing is attached to the frame of any of a number of conventional type fishing tipups. A ferrous plate is bonded to the housing proximate the magnetic reed switch inside. A magnet is placed on the ferrous plate, and the magnet actuates the magnetic reed switch to an open state. The magnet is tied with a cord to the flag alert of the tipup. When a fish strikes, the flag alert trips and pulls the magnet from the plate. As a result, the magnetic reed switch closes, and the radio transmitter is energized to signal a pager carried by the fisherman, who can be at a substantial distance and out of sight of his tipup. In a modified embodiment, the magnet and the plate are inverted.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: March 24, 1992
    Inventor: Boyd A. Stoffel