Patents by Inventor Paul A. Zarkowski

Paul A. Zarkowski 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: 5041811
    Abstract: A device for indicating the optimum idling time of an engine after ignition. A detector circuit senses the voltage drop caused by the load of the starter on the power line and starts the timer. The optimum idling time is determined from the ambient temperature. A LED is illuminated after ignition and is extinguished after the optimum idling time. The device is designed to fit in the receptacle of a standard cigarette lighter and requires no connections beyond those available there.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: August 20, 1991
    Inventor: Paul A. Zarkowski