Patents by Inventor David S. Wirkala

David S. Wirkala 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: 5346705
    Abstract: Bait for use in trapping lobsters and crabs and method of making the same require that fish wastes, including meat, skin and bones be ground to produce particles in the one half inch size range. While the ground particles are predominantly in that size range, a minor percentage of oversized and undersized particles are also produced. The undersized particles are in the approximate range of three eighths inches while the approximate size of the oversized particles is three fourths inches. The ground particles are thoroughly mixed with rock salt in amounts sufficient for their preservation for a suitable shelf life and to expose the particles to the air. The coagulating mixture is then packaged in containers which are porous at least when wet and the packaged baits are ready to use when the mixture has solidified.
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: September 13, 1994
    Inventor: David S. Wirkala