Patent ID: 7520022

Claim:
A hinge assembly comprising: a first hinge half; a second hinge half; a spring comprising a coil body, a first spring arm extending from the coil body having a first distal end portion, a distance between the first spring arm and the first hinge half increasing along a length of the first spring arm from the coil body to the first distal end, a second spring arm extending from the coil body having a second distal end portion, a distance between the second spring arm and the second hinge half increasing along a length of the second spring arm from the coil body to the second distal end, a first support extending from the first distal end portion towards the first hinge half and bearing on the first hinge half, the first support having a length shorter than a length of the first spring arm, the length of the first support defined by a distance between the first distal end portion and the first hinge half, a second support extending from the second distal end portion towards the second hinge half and bearing on the second hinge half, the second support having a length shorter than a length of the second spring arm, the length of the second support defined by a distance between the second distal end portion and the second hinge half; and a pin passing through the coil body of the spring joining the first hinge half and the second hinge half.