Self-closing hinge

Claim 1

A CABINET HINGE HAVING TWO LEAVES, EACH OF SAID LEAVES HAVING PROVISIONS FOR ATTACHMENT TO RELATIVELY SWINGABLE CABINET ELEMENTS; A HINGE PIN MADE OF RESILIENT MATERIAL AND HAVING BOTH ENDS SECURED TO AND MOUNTED BY ONE OF SAID LEAVES; THE OTHER OF SAID LEAVES HAVING A KNUCKLE EXTENDING ABOUT AN INTERMEDIATE PORTION OF SAID HINGE PIN FOR MOVEMENT ABOUT THE HINGE PIN AS AN AXIS, AND HAVING CLEARANCE RELATIVE TO THE ENDS OF SAID HINGE PIN TO PERMIT LATERAL DEFLECTION OF SAID KNUCKLE AND SAID OTHER LEAF WITH ACCOMPANYING FLEXTURE OF THE INTERMEDIATE PORTION OF SAID HINGE PIN; SAID HINGE PIN RESILIENTLY RESISTING SUCH DEFLECTION AND DETERMINING A NORMAL MUTUAL AXIS OF ANGULAR MOVEMENT OF SAID LEAVES; SAID LEAVES BEING MOVABLE AT LEAST IN ONE RELATIVE ANGULAR DIRECTION FROM AN ANGULAR POSITION CORRESPONDING TO CLOSED POSITION; AND COMPANION CAM MEANS CARRIED BY THE LEAVES RESPECTIVELY AND OPERATIVE TO CAUSE DEFLECTION OF SAID KNUCKLE AS SAID LEAVES CLOSELY APPROACH SAID CLOSED POSITION; SAID CAM MEANS PRODUCING MAXIMUM DEFLECTION WHEN SAID LEAVES ARE AWAY FROM SAID CLOSED POSITION; SAID CAM MEANS BEING POSITIONED SUBSTANTIALLY TO BE CONCEALED BY SAID KNUCKLE WHEN SAID LEAVES ARE IN CLOSED POSITION.