Patents by Inventor Leonard Witt, JR.

Leonard Witt, JR. 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).

  • System, and Apparatus for Protecting Fuel Dispensers
    Publication number: 20230331541
    Abstract: A security device for a fuel dispenser includes a stepping relay having contacts arranged in series between a source of power and a fuel pump such that when the contacts are open, no fuel can be dispensed. The stepping relay is triggered by one or more door interlock switches that are powered by the fuel pump side of the contacts such that, when an access door is opened, the relay is triggered and the door interlock switches are no longer powered, hence, disabled. Therefore, a reset switch that is constantly powered is interfaced to trigger the stepping relay to close the contacts and allow fuel to be dispensed. Preferably, the reset switch is either remotely located or has a security feature.
    Type: Application
    Filed: April 19, 2022
    Publication date: October 19, 2023
    Inventor: Leonard Witt, JR.
  • System, and apparatus for protecting fuel dispensers
    Patent number: 11772955
    Abstract: A security device for a fuel dispenser includes a stepping relay having contacts arranged in series between a source of power and a fuel pump such that when the contacts are open, no fuel can be dispensed. The stepping relay is triggered by one or more door interlock switches that are powered by the fuel pump side of the contacts such that, when an access door is opened, the relay is triggered and the door interlock switches are no longer powered, hence, disabled. Therefore, a reset switch that is constantly powered is interfaced to trigger the stepping relay to close the contacts and allow fuel to be dispensed. Preferably, the reset switch is either remotely located or has a security feature.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: October 3, 2023
    Inventor: Leonard Witt, Jr.