Patents by Inventor Charles G. Cavalleri

Charles G. Cavalleri 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: 4228885
    Abstract: A coin operated electric lamp, including an electric circuit, having a plug for connection to a household electric power supply; the circuit including a switch activated by a deposited coin, so to close the circuit to an incandescent lamp bulb and to a motor in parallel to the lamp, the motor driving a spiral cam which, upon completing a rotation, pushes the switch into an open position so to stop the motor and turn out the light bulb.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: October 21, 1980
    Inventor: Charles G. Cavalleri