Patents by Inventor John Duddles

John Duddles 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).

  • Publication number: 20050115541
    Abstract: A one piece slide in place “butterfly” valve plate for a short runner manifold of a vehicle. A method of reducing friction in an anti-chatter device.
    Type: Application
    Filed: January 4, 2005
    Publication date: June 2, 2005
    Applicant: BorgWarner Inc.
    Inventors: Mark Lozen, John Duddles, Frederick Miller, Kevin Goldstein
  • Publication number: 20050077893
    Abstract: A sensing system for a vehicle that includes a single sensor element and multiple outputs. An engine controller is responsive to the multiple outputs, output circuits and a supervisor circuit in the system monitors the sensor element and shared circuits. If the sensor element fails, or if a connector fails or if the supervisor circuit indicates a circuit failure, one or more of the outputs will go outside of their normal operating range into a diagnostics range to allow the engine controller to take the appropriate action.
    Type: Application
    Filed: October 14, 2003
    Publication date: April 14, 2005
    Applicant: BorgWarner Inc.
    Inventors: Robert Keefover, Todd Peterson, John Duddles
  • Patent number: 6683429
    Abstract: An electric positional actuator that includes a default device for positioning the actuated device in a default position. The actuator includes an electric motor that controls the rotational position of a shaft through a gear system. When the shaft rotates, it moves a link-bar that actuates the actuated device. A rotational sensor coupled to a printed circuit board detects the position of the shaft, and provide a feedback signal of the shaft's position. The default device includes a spring wrapped around the shaft. When the link bar is rotated away from its default position, one leg of the spring remains in contact with a housing spring boss while the other leg of the spring is in contact with the link bar opposing the movement and trying to return the link-bar to the default position.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: January 27, 2004
    Assignee: BorgWarner Inc.
    Inventors: Hal Pringle, Robert Keefover, Michael Halsig, John Duddles
  • Publication number: 20030201742
    Abstract: An electric positional actuator that includes a default device for positioning the actuated device in a default position. The actuator includes an electric motor that controls the rotational position of a shaft through a gear system. When the shaft rotates, it moves a link-bar that actuates the actuated device. A rotational sensor coupled to a printed circuit board detects the position of the shaft, and provide a feedback signal of the shaft's position. The default device includes a spring wrapped around the shaft. When the link bar is rotated away from its default position, one leg of the spring remains in contact with a housing spring boss while the other leg of the spring is in contact with the link bar opposing the movement and trying to return the link-bar to the default position.
    Type: Application
    Filed: April 24, 2002
    Publication date: October 30, 2003
    Inventors: Hal Pringle, Robert Keefover, Michael Halsig, John Duddles