Patent ID: 7945996

Claim:
A self-closing hinge, comprising a hinge housing, adapted for securement to a door frame; a hinge blade with a blade distal end and a blade proximal end, with the blade distal end being adapted for securement to a door, the door being adapted to open and close within the door frame, and the blade proximal end being secured to a first end of a pushrod, so that the hinge blade rotates when the pushrod rotates and vice-versa; the pushrod being secured to a first cam member with a first cam surface so that the first cam member rotates when the pushrod rotates and vice-versa; a second cam member with a second cam surface secured within the hinge housing, the second cam member having an open end for receiving within it the first cam member and the first cam surface so that the first cam surface contacts the second cam surface, the open end of the second cam member also receiving within it a portion of the pushrod, a second end of the pushrod being connected to one end of a spring which is contained within the hinge housing, the spring at least partly surrounding both the first and second cams.