Spring for biasing a rocker arm

Claim 1

IN COMBINATION, AN INTERNAL COMBUSTION ENGINE, A ROCKER ARM, A ROCKER ARM ACTUATING ROD, AND A SPRING FOR TORQUE BIASING THE ROCKER ARM INTO SUBSTANTIALLY CONTINUOUS ENGAGEMENT WITH THE ACTUATING ROD, WHICH COMPRISES: (A) AN INTERNAL COMBUSTION ENGINE; (B) A ROCKER ARM; (C) A SPLIT SHAFT COMPRISING A PAIR OF SUBSTANTIALLY SEMICYLINDRICAL PORTIONS; (D) A MOVABLE ROD MOUNTED ON SAID ENGINE AND ADAPTED TO ACTUATE SAID ROCKER ARM; (E) A SPRING HAVING A PAIR OF PARALLEL COILS SPACED APART FROM EACH OTHER AND ADAPTED TO PRODUCE A TORQUE; (F) A FIRST LEG ON EACH OF SAID COILS, EACH OF SAID FIRST LEGS HAVING A SEMI-CIRCULAR LOOP DISPOSED SO AS TO SURROUND ONE SEMI-CYLINDRICAL PORTION OF SAID SPLIT SHAFT; (G) A FINGER ON EACH OF SAID COILS, EACH OF SAID FINGERS BEING DISPOSED SO AS TO SUBSTANTIALLY CLOSE ITS ADJACENT LOOP, AND SAID FINGERS BEING DIAMETRICALLY SEATED BETWEEN THE FLAT SURFACES OF THE SEMI-CYLINDRICAL PORTIONS OF SAID SHAFT; (H) A SECOND LEG ON EACH OF SAID COILS; AND (I) A YOKE INTERCONNECTING SAID SECOND LEGS, SAID YOKE BEING IN TORQUE BIASING ENGAGEMENT WITH SAID ROCKER ARM SO AS TO CAUSE SAID ROCKER ARM TO FOLLOW SAID MOVABLE ROD.