Dental articulator

Claim 1

A DENTAL ARTICULATOR FOR REPRODUCING THE MOVEMENTS OF A HUMAN JAW, COMPRISING: A LOWER FRAME AND AN UPPER FRAME FOR SIMULATING THE LOWER AND UPPER HUMAN JAWS RESPECTIVELY, SAID FRAMES HAVING FORWARD AND REARWARD PORTIONS, A PAIR OF CONDYLE MEANS MOVABLY MOUNTED ON THE REARWARD PORTION OF SAID LOWER FRAME, A PAIR OF OPEN BOXES MOVABLY MOUNTED ON THE REARWARD PORTION OF SAID UPPER FRAME, SAID OPEN BOXES POSITIONED ON SAID UPPER FRAME FOR FITTING OVER SAID CONDYLE MEANS, EACH SAID OPEN BOX HAVING AN ABUTMENT CORNER PORTION WITH ABUTMENT WALL MEANS ENGAGING AND MATING WITH THE ASSOCIATED SAID CONDYLE MEANS IN A CENTRIC POSITION AND PREVENTING MOVEMENT OF THAT CONDYLE MEANS RELATIVE TO THAT OPEN BOX IN THE DIRECTION UPWARD TOWARD THE OPEN BOX AND THE DIRECTION INWARD TOWARD THE OTHER SAID OPEN BOX AND THE DIRECTION REARWARD OF SAID UPPER FRAME WHILE PERMITTING RELATIVE MOVEMENT IN ALL OTHER DIRECTIONS FROM SAID CENTRIC POSITION, MEANS FOR SUPPORTING THE FORWARD PORTIONS OF SAID UPPER AND LOWER FRAMES RELATIVE TO EACH OTHER, A FORMABLE MATERIAL IN EACH OF SAID OPEN BOXES, AND MEANS MOUNTED ON SAID UPPER AND LOWER FRAMES TO PERMIT A CONFINED RELATIVE MOVEMENT BETWEEN SAID FRAMES TO CAUSE SAID CONDYLE MEANS TO FORM A PATH WITHIN SAID FORMABLE MATERIAL WHEREBY SUBSEQUENT RELATIVE MOVEMENT FOLLOWING SAID PATH REPRODUCES THE MOVEMENT OF THE JAW.