Metal working – Method of mechanical manufacture – Of a slide fastener
Patent
1977-07-25
1978-09-05
DiPalma, Victor A.
Metal working
Method of mechanical manufacture
Of a slide fastener
29 332, 29766, 29767, 264252, B23P 1100
Patent
active
041108914
ABSTRACT:
A separable bottom end stop having a pin member and a box member is attached to a pair of slide fastener stringers each comprising a row of helically coiled coupling elements supported on and along one side of a marginal edge of a stringer tape, there being a filler cord extending in and along the row of coupling elements. In preparation for the mounting of each of the pin member and the box member, a length of the row of coupling elements is removed, and the exposed filler cord portion and element-free tape portion are pressed together so that the exposed filler cord portion remains in substantial alignment with a portion of the cord which extends over the element-supporting stringer portion, and the element-free tape portion is bent into pressed contact with the exposed filler cord portion. The pin member and the box member are injection-molded on the element-free tape portions and the exposed filler cord portions of the stringers. The attached pin member and pin part of the box member lie substantially flush with the fastener stringers so that the slider can slide smoothly onto the pin member and pin part.
REFERENCES:
patent: 2464050 (1949-03-01), Morin
patent: 2511397 (1950-06-01), Day
patent: 2546649 (1951-03-01), Morin
patent: 3488239 (1970-01-01), Heimberger
patent: 3714698 (1973-02-01), Fukuroi
patent: 3818575 (1974-06-01), Johnston
DiPalma Victor A.
Yoshida Kogyo K.K.
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