Patents by Inventor Keith R. Sprague

Keith R. Sprague 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).

  • Door hinge
    Patent number: 8082630
    Abstract: A vehicle door hinge includes a base, a main link having first and second arms, a first end of the main link being pivotally mounted to the base at a first pivot, a drive link pivotally connected to an end of a control link, the drive link passing through a slot in the main link, a mounting plate having open ended slots opening at a first end of the plate, at least one closed end slot wherein an end of the drive link is pivotally secured in one of the open ended slots, an idle link pivotally secured in a closed end slot of the main link and an open ended slot of the door mounting plate, a kicker link having a first end thereof pivotally secured in the open ended slot of the main link and a second end pivotally secured in a closed end slot of the door mounting plate wherein the kicker link is longer than the idle link.
    Type: Grant
    Filed: February 28, 2009
    Date of Patent: December 27, 2011
    Inventors: Glenn R. Sprague, Keith R. Sprague
  • DOOR HINGE
    Publication number: 20090271949
    Abstract: A vehicle door hinge includes a base, a main link having first and second arms, a first end of the main link being pivotally mounted to the base at a first pivot, a drive link pivotally connected to an end of a control link, the drive link passing through a slot in the main link, a mounting plate having open ended slots opening at a first end of the plate, at least one closed end slot wherein an end of the drive link is pivotally secured in one of the open ended slots, an idle link pivotally secured in a closed end slot of the main link and an open ended slot of the door mounting plate, a kicker link having a first end thereof pivotally secured in the open ended slot of the main link and a second end pivotally secured in a closed end slot of the door mounting plate wherein the kicker link is longer than the idle link.
    Type: Application
    Filed: February 28, 2009
    Publication date: November 5, 2009
    Inventors: Glenn R. Sprague, Keith R. Sprague