Patents by Inventor John D. Jervis

John D. Jervis 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).

  • Motor vehicle battery disconnect circuit having electronic disconnects
    Patent number: 7821227
    Abstract: An electronic disconnect switch module (12) in a motor vehicle has one or more pairs of high-current, high-side solid state switch devices (30A, 30B, 32A, and 32B). The source terminal of one device of each pair is connected to vehicle load circuits (27), the source terminal of the other device of each pair is connected to the vehicle battery bank (16), and the drain terminals of the devices of each pair are connected in common. The module also has a microcontroller (34) that interfaces the switch devices with the vehicle electrical system. Four feature groups are provided: Vehicle Electrical System Protection, Battery Charge Control, Battery Disconnect, and Battery Monitoring.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: October 26, 2010
    Assignee: International Truck Intellectual Property Company, LLC
    Inventors: Clayton M. Howell, John D. Jervis, H. Edward Kelwaski
  • Motor Vehicle Battery Disconnect Circuit Having Electronic Disconnects
    Publication number: 20100013302
    Abstract: An electronic disconnect switch module (12) in a motor vehicle has one or more pairs of high-current, high-side solid state switch devices (30A, 30B, 32A, and 32B). The source terminal of one device of each pair is connected to vehicle load circuits (27), the source terminal of the other device of each pair is connected to the vehicle battery bank (16), and the drain terminals of the devices of each pair are connected in common. The module also has a microcontroller (34) that interfaces the switch devices with the vehicle electrical system. Four feature groups are provided: Vehicle Electrical System Protection, Battery Charge Control, Battery Disconnect, and Battery Monitoring.
    Type: Application
    Filed: September 24, 2009
    Publication date: January 21, 2010
    Applicant: International Truck Intellectual Property Company, LLC
    Inventors: Clayton M. Howell, John D. Jervis, H. Edward Kelwaski
  • Motor vehicle battery disconnect circuit having electronic disconnects
    Patent number: 7612524
    Abstract: An electronic disconnect switch module (12) in a motor vehicle has one or more pairs of high-current, high-side solid state switch devices (30A, 30B, 32A, and 32B). The source terminal of one device of each pair is connected to vehicle load circuits (27), the source terminal of the other device of each pair is connected to the vehicle battery bank (16), and the drain terminals of the devices of each pair are connected in common. The module also has a microcontroller (34) that interfaces the switch devices with the vehicle electrical system. Four feature groups are provided: Vehicle Electrical System Protection, Battery Charge Control, Battery Disconnect, and Battery Monitoring.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: November 3, 2009
    Assignee: International Truck Intellectual Property Company, LLC
    Inventors: Clayton M. Howell, John D. Jervis, H. Edward Kelwaski
  • MOTOR VEHICLE BATTERY DISCONNECT CIRCUIT HAVING ELECTRONIC DISCONNECTS
    Publication number: 20080079389
    Abstract: An electronic disconnect switch module (12) in a motor vehicle has one or more pairs of high-current, high-side solid state switch devices (30A, 30B, 32A, and 32B). The source terminal of one device of each pair is connected to vehicle load circuits (27), the source terminal of the other device of each pair is connected to the vehicle battery bank (16), and the drain terminals of the devices of each pair are connected in common. The module also has a microcontroller (34) that interfaces the switch devices with the vehicle electrical system. Four feature groups are provided: Vehicle Electrical System Protection, Battery Charge Control, Battery Disconnect, and Battery Monitoring.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 3, 2008
    Applicant: INTERNATIONAL TRUCK INTELLECTUAL PROPERTY COMPANY, LLC
    Inventors: Clayton M. Howell, John D. Jervis, H. Edward Kelwaski