Patents by Inventor Allan D. Narveson

Allan D. Narveson 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).

  • Engine ignition shutdown module
    Patent number: 9556846
    Abstract: An engine ignition shutdown module includes a voltage regulator circuit connected to a key switch, and a pair of isolated MOSFET driver circuits connected to the voltage regulator circuit. Each MOSFET driver circuit charges a capacitor while the key switch is in a run position and the interlock switches are closed, and each capacitor discharges through a resistor for a time delay period once the key switch is moved from the run position to an off position or at least one of the interlock switches are opened. A pair of high voltage output MOSFET transistors are switched on while the capacitors discharge and provide an output to a magneto ignition for the time delay period.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: January 31, 2017
    Assignee: DEERE & COMPANY
    Inventors: David A. Straka, Quintin D. Rigert, Jason D. Raabe, Allan D. Narveson
  • ENGINE IGNITION SHUTDOWN MODULE
    Publication number: 20140251271
    Abstract: An engine ignition shutdown module includes a voltage regulator circuit connected to a key switch, and a pair of isolated MOSFET driver circuits connected to the voltage regulator circuit. Each MOSFET driver circuit charges a capacitor while the key switch is in a run position and the interlock switches are closed, and each capacitor discharges through a resistor for a time delay period once the key switch is moved from the run position to an off position or at least one of the interlock switches are opened. A pair of high voltage output MOSFET transistors are switched on while the capacitors discharge and provide an output to a magneto ignition for the time delay period.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: DEERE & COMPANY
    Inventors: David A. Straka, Quintin D. Rigert, Jason D. Raabe, Allan D. Narveson