Patents by Inventor Frank Caliri

Frank Caliri 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).

  • Model railroad layout
    Patent number: 4051783
    Abstract: Model railroad layout with a length of track formed near the ends of the rails with gaps and connected to an electrical source and a control means to reverse polarity on the rails when the engine wheel bridges a gap.
    Type: Grant
    Filed: July 1, 1976
    Date of Patent: October 4, 1977
    Assignee: Peerless Industries Inc.
    Inventor: Frank Caliri
  • Automobile warning system
    Patent number: 4038634
    Abstract: A warning system for installation in a vehicle, the system including a transducer located at a selected location in the vehicle to detect conditions existing at the location and to generate a signal containing raw information, a master unit connected to the transducer and an indicator connected to the master unit. The master unit includes means for removing extraneous information from the raw information in the signal generated by the transducer and thereby producing a remaining signal for use by the operator of the vehicle.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: July 26, 1977
    Inventor: Frank Caliri