Patents by Inventor Demetrius C Ham

Demetrius C Ham 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).

  • Vertical door conversion kit with lag mechanism and motion range limiter
    Patent number: 7140075
    Abstract: A door hinge mechanism allowing two dimensional motion of the door as it opens, combined with at least one mechanism allowing control of the range of horizontal motion of the door during normal operations. Horizontal lag adjustment and range limitation of the mechanism allows a number of benefits: horizontal fit of the door to the frame may be controlled, the outward motion of the door may be curtailed at the proper angle desired by the user. The door hinge mechanism is a bi-directional hinge allowing sequential motion in two planes, and a horizontal motion stop and cooperating contact surface.
    Type: Grant
    Filed: July 10, 2004
    Date of Patent: November 28, 2006
    Assignee: Decah, LLC
    Inventor: Demetrius C Ham