Slide fasteners

Claim 1

A SLIDE FASTENER COMPRISING A PAIR OF COEXTENSIVE AND INTERLOCKING LONGITUDINAL FASTENER STRIPS, EACH FASTENER STRIP BEING OF FLEXIBLE AND RESILIENT MATERIAL AND EACH HAVING A LONGITUDINALLY EXTENDING INTERIOR SURFACE INCLUDING ALONG AN UPPER PORTION THEREOF TRANSVERSELY PROJECTING LONGITUDINAL MALE AND FEMALE ELEMENTS IN CO-MATING ARRANGEMENT AND CONSTRUCTION WITH RESPECT TO THOSE ELEMENTS AT THE UPPER PORTION OF THE OTHER FASTENER STRIP, SAID MALE AND FEMALE ELEMENTS OF ONE FASTENER STRIP COMPRISING A RELATIVELY SHORT AND PLAINLY ROUNDED MALE ELEMENT ADJACENT THE TOP SURFACE OF SAID STRIP AND A RELATIVELY LONG AND GENERALLY ROUNDED MALE ELEMENT AT SUBSTANTIALLY A MIDDLE LOCATION OF ITS SAID INTERIOR SURFACE UPPER PORTION AND, FURTHER, A SIMILARLY SHORT AND PLAINLY ROUNDED FEMALE ELEMENT BETWEEN SAID RELATIVELY SHORT AND LONG MALE ELEMENTS, SAID RELATIVELY LONG MALE ELEMENT INCLUDING ALONG ITS LONGITUDINAL LENGTH A SINGLE, DOWNWARDLY PROJECTING HOOK-LIKE PORTION FOR ENGAGING THE OTHER OF SAID FASTENER STRIPS, SAID HOOK-LIKE PORTION DISPOSED SUBSTANTIALLY ADJACENT THE OUTER EXTREMITY OF PORJECTION OF SAID RELATIVELY LONG MALE ELEMENT, AND SAID RELATIVELY LONG MALE ELEMENT FURTHER HAVING AN UPWARDLY PROJECTING AUXILIARY MALE ELEMENT EXTENDING ALONG THE LONGITUDINAL LENGTH OF AN UPPER SUBSTANTIALLY HORIZONTAL SURFACE THEREOF, AT A LOCATION ON THE PROJECTING LENGTH OF SAID RELATIVELY LONG MALE ELEMENT CORRESPONDING TO THE PROJECTING LENGTH OF SAID RELATIVELY SHORT MALE ELEMENT.