Patents by Inventor Loy David Sullivan

Loy David Sullivan 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 pin removal tool
    Patent number: 6308390
    Abstract: A hand tool for use in removing a pintle from a door hinge, comprising a rigid, barrel with a slotted aperture enclosing a push rod affixed to a base adapted to thrust the pintle out of a door hinge when the tool is placed against the door hinge pintle and struck with a blunt object. A viewing window is defined by the barrel for providing proper visual alignment and placement of the push rod against the door hinge pintle. The base includes a notch for use in removing hinge pintle caps.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: October 30, 2001
    Inventor: Loy David Sullivan