Slide fastener stop

Claim 1

IN A SLIDE FASTENER, A PAIR OF STRINGERS HAVING SERIES OF LOCKING ELEMENTS ALONG THEIR OPPOSED EDGES, A SLIDER HAVING DIVERGING CHANNELS FORMED BETWEEN THE WALLS THEREOF AT ITS UPPER, WIDER END AND MOVABLE ALONG SAID ELEMENTS FOR INTERLOCKING AND DISENGAGING THE SAME AND COOPERATING MEANS ON ONE OF SAID STRINGERS AND SAID SLIDER FOR LOCKING THE LATTER AGAINST SAID MOVEMENT IN A GIVEN POSITION ON THE STRINGERS, SAID COOPERATING MEANS COMPRISING A LOCKING MEMBER HAVING AT LEAST ONE LOCKING PROJECTION SECURED ON SAID ONE STRINGER AT SAID GIVEN POSITION AND AADAPTED TO ENTER THE UPPER END OF ONE OF SAID DIVERGING CHANNELS, A RECESS TO RECEIVE SAIDLOCKING PROJECTION IN AT LEAST ONE WALL OF SAID ONE DIVERGING CHANNEL ADJACENT TO THE UPPER END OF SAID DIVERGING CHANNEL AND LOCATED IN THE PATH OF MOVEMENT OF SAID LOCKING MEMBER, SAID RECESS INCLUDING AN ENLARGED INNER END PORTION HAVING A CONFIGURATION APPROXIMATING THE CONFIGURATION OF SAID LOCKING PROJECTION TO RECEIVE SAID LOCKING PROJECTION THEREIN AND HAVING A DEPTH GREATER THAN THE REMAINDER OF SAID RECESS, AND INCLUDING A PORTION CONNECTING SAID INNER END PORTION TO THE UPPER END OF SAID DIVERGING CHANNEL AND HAVING AN INNER LOCKING PROJECTION ENGAGING SURFACE CONVEXLY CURVED IN THE DIRECTION OF THE MOVEMENTS OF SAID LOCKING PROJECTION TOWARD AND AWAY FROM SAID INNER END PORTION TO PROVIDE A RAMP MEMBER HAVING AN APEX LOCATED INTERMEDIATE SAID INNER END PORTION AND SAID UPPER CHANNEL END, ONE OF SAID LOCKING AND RAMP MEMBERS BEING A COMPRESSIBLE, RESILIENT MEMBER, AND THE APEX OF SAID RAMP MEMBER BEING SPACED FROM THE INTERIOR SURFACE OF THE OTHER CHANNEL WALL A DISTANCE LESS THAN THE OVERALL HEIGHT OF SAID LOCKING MEMBER SO THAT SAID RESILIENT MEMBER IS COMPRESSED AS SAID LOCKING MEMBER MOVES OVER THE APEX OF SAID RAMP SURFACE IN PASSING THROUGH SAID RECESS IN ONE DIRECTION OR THE OTHER, SAID RAMP MEMBER BEING CONFIGURED TO RETAIN SAID LOCKING PROJECTION IN SAID INNER END PORTION OF THE RECESS UNTIL POSITIVELY MOVED THEREFROM.