Patents by Inventor William S. Sage

William S. Sage 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).

  • Lineal controlled resistance device
    Patent number: 3970985
    Abstract: A device for controlling the amount of resistance in an electric circuit. A variable resistor is fixedly attached to a carriage slidably mounted on a pair of spaced apart guide rods within a hollow frame. A pinion gear is fixedly attached to a shaft of the variable resistor for allowing the resistance of the variable resistor to be varied by rotation thereof. A rack gear is fixedly attached to the frame in engagement with the pinion gear whereby manual lineal movement of the carriage back and forth upon the guide rods will cause rotary movement of the shaft of the variable resistor thereby varying the resistance of the variable resistor.
    Type: Grant
    Filed: July 30, 1975
    Date of Patent: July 20, 1976
    Inventor: William S. Sage