Patents by Inventor Robert E. Alger

Robert E. Alger 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).

  • Actuator mechanism
    Patent number: 5226619
    Abstract: An electrically-controlled actuating mechanism comprises a length of shape memory wire. A source of electrical current passes electricity through the shape memory wire and a voltage regulator controls the voltage applied to the wire. The actuating mechanism is particularly advantageous as an actuator for a model railway track switch.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: July 13, 1993
    Inventor: Robert E. Alger