Slide fastener with terminal member

Claim 1

A SLIDE FASTENER HAVING TWO STRINGERS, ROWS OF COUPLING MEMBERS CAST ONTO SAID STRINGERS AND HAVING INTERENGAGEABLE PROJECTIONS AND RECESSES, A SLIDER COOPERABLE WITH SAID COUPLING MEMBERS, A TERMINAL ELEMENT ALSO CAST ONTO SAID STRINGERS AND HAVING AT LEAST TWO PARTS OF WHICH ONE IS CAST ON ONE STRINGER AND THE OTHER IS CAST ON THE OTHER STRINGER, SAID TERMINAL ELEMENT PARTS HAVING PROJECTIONS AND RECESSES DIFFERING FROM THOSE OF SAID COUPLING MEMBERS YET SAID PROJECTIONS AND RECESSES BEING INTERENGAGEABLE BY SAID SLIDER BY MOVEMENT OF THE LATTER IN THE CLOSING DIRECTION FOR PREVENTING RELATIVE DISPLACEMENT OF SAID PARTS IN THE DIRECTION LONGITUDINAL OF THE FASTENER, SAID TERMINAL ELEMENT PARTS INCLUDING FOR AT LEAST ONE THEREOF A STRUCTURAL FORMATION OF SUCH GREATER LATERAL EXTENT ACROSS THE LONGITUDINAL MID-AXIS OF THE FASTENER AS TO PRESENT WHEN ONCE SAID TERMINAL ELEMENT PARTS ARE SO INTERENGAGED BY THE SLIDER A POSITIVE STOP MEMBER FACING THE ADJACENT COUPLING MEMBERS AND BEING OF GREATER LENGTH THAN SAID COUPLING MEMBERS AND ADAPTED FOR DIRECT ABUTTIVE OPPOSITION TO MOVEMENT OF THE SLIDER IN THE DIRECTION OF COUPLING MEMBER OPENING, AND SAID SLIDER HAVING AN ABUTTING PORTION COOPERABLE WITH SAID STOP MEMBER FOR POSITIVELY BLOCKING THE SLIDER AT THE TERMINAL ELEMENT BY SAID OPPOSITION THERETO AND THEREBY CERTAINLY PREVENTING DISENGAGEMENT OF THE TERMINAL ELEMENT PARTS BY THE SLIDER WHEN THE LATTER IS MOVED IN THE OPENING DIRECTION.