Patents by Inventor Bret A. Dunbar

Bret A. Dunbar 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).

  • Illuminated float
    Patent number: 5231781
    Abstract: An illuminated float comprises a plurality of solar generators, a storage battery for storing therein the electrical energy generated by the solar generator, a light-emitting element which emits the light by the energy supplied from the storage battery, a homing device which emits a high-frequency beacon displayed on the ships display screen, and an energy control means which permits the supply of electrical energy from the storage battery to the light-emitting element and the homing device only when ambient illumination drops below a predetermined level.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: August 3, 1993
    Assignee: Bret Allen Dunbar
    Inventor: Bret A. Dunbar