Height increasing devices for shoes

Claim 1

A HEIGHT INCREASING DEVICE FOR LOOSE INSERTION IN THE HEEL PORTION OF A SHOE, COMPRISING A FLEXIBLE ELEVATING MEMBER FORMED OF A RESILIENT MATERIAL, SAID MEMBER HAVING A LONGITUDINAL DIMENSION SLIGHTLY LONGER THAN THE HEEL PORTION OF A SHOE AND LATERAL DIMENSIONS AND CURVATURE CONFORMING IN SHAPE TO THE HEEL PORTION OF A SHOE, SAID MEMBER HAVING A PLANE TOP SURFACE, AND SAID MEMBER HAVING A BOTTOM SURFACE IN TWO PARTS, THE REAR PART BEING HORIZONTAL FOR A RELATIVELY SHORT DISTANCE FROM ITS REAR END AND THE FORWARD PART BEING INCLINED UPWARDLY AND FORWARDLY INTO MEETING ENGAGEMENT WITH SAID TOP SURFACE, SAID BOTTOM SURFACE THUS CONTAINING A LATERAL LINE SEPARATING THE HORIZONTAL AND INCLINED PARTS, WHEREBY SAID MEMBER HAS A REAR PORTION HAVING A CONSTANT THICKNESS LONGITUDINALLY AND A FORWARD PORTION WHICH IS CONSTANTLY DECREASING IN THICKNESS LONGITUDINALLY TOWARD THE FRONT, SAID PORTIONS BEING DEFINED AT THE BOTTOM SURFACE BY SAID LATERAL LINE AT THE INTERSECTION OF SAID HORIZONTAL AND UPWARDLY INCLINED BOTTOM SURFACE PARTS, SAID MEMBER WHEN LOOSELY INSERTED IN A SHOE AND TAKING THE WEIGHT OF A WEARER IN A DOWNWARD DIRECTION THROUGH HIS HEEL BEING ROCKED ABOUT SAID LATERAL LINE AS A FULCRUM TO LOWER SAID REAR PORTION AND ELEVATE SAID FORWARD PORTION WHEREBY TO PRODUCE A REACTIVE FORCE UPWARDLY ON THE FORWARD PART OF THE HEEL AND MEDIAL PART OF THE FOOT OF THE WEARER.