Patent ID: 7469448
Filing Date: 2008-12-30
Classification: E05D,Y10T

Abstract:
1. A hinge assembly comprising: a pair of bases, each base having a longitudinal length with substantially the same size, and each base having upper and lower portions, and each base having a front face and a distal face; a pair of links cross-attached to the pair of bases, with one end of the first link attached to an upper portion of the front face of the first base and the other end attached to a lower portion of the front face of the second base, and one end of the second link attached to a lower portion of the distal face of the first base and the other end attached to an upper portion of the distal face of the second base, allowing the bases to pivot with respect to each other, where the bases are moveable and self-holding in position at any angle from parallel to each other to being in the same plane as each other, where each link has a longitudinal length greater than the longitudinal lengths of the bases, providing a gap between the bases when the assembly is moved to place the bases in the same plane; four pivot screws, one screw to attach each of the two ends of each of the two cross-attached links to the bases, by being threaded through holes on the bases and links at the positions where the bases and links are attached to one another; and four Belleville washer assemblies, one Belleville washer assembly secured between a head of each pivot screw and the link which the screw attaches.