Patents by Inventor Curtis Deem

Curtis Deem 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: 4131318
    Abstract: A coin collection apparatus includes a collection chamber and a vacuum mechanism for applying a vacuum to the collection chamber. A plurality of inlet holes are formed through a top wall of the chamber and a conduit connects each of the inlet holes to a separate and discrete source of coins. A discrete stopper is located at each inlet hole and is biased to a blocking position for individually blocking each of the inlet holes. A solenoid is connected to each of the stoppers for moving the stopper against the bias force to allow communication between the conduit and the collection chamber. Timing mechanisms periodically activate the vacuum mechanism and the solenoids.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: December 26, 1978
    Inventor: Curtis Deem