Patents by Inventor Alfred C. Erickson

Alfred C. Erickson 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).

  • Regenerative electric motor
    Patent number: 4237410
    Abstract: An improved electric motor for use in battery powered vehicles wherein the motor is adapted for production of a secondary voltage to sequentially charge batteries used as the power source for powering the vehicle, which motors are adapted to be carried aboard the vehicle and to cyclically function as a means to drive the wheels of the vehicle and then to recharge the batteries used as the power source to drive the motors in operative relationship.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: December 2, 1980
    Inventors: Alfred C. Erickson, Clyde W. Erickson
  • Foldable snow shoe
    Patent number: 4203236
    Abstract: A foldable snow shoe adapted to be manipulated between a folded convenient storage condition and an open and locked use condition with hinge means at the front and rear of the snow shoe to define the foldable condition thereof and associated spreader and stabilizing means to define the open-use condition thereof.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: May 20, 1980
    Inventors: Alfred C. Erickson, Clyde W. Erickson