Slide fastener for preventing jamming of foreign matter

Details Slide fastener for preventing jamming of foreign matter Slide fastener for preventing jamming of foreign matter

1979-08-03

1981-04-14

Frazier, Roy D.

Buckles, buttons, clasps, etc.

Buckles

One-piece

A44G 1926

Patent

active

042610826

ABSTRACT:
A slide fastener is provided with flanges projecting forwardly of the front or diverging end portion of a slider body to form a V-shape. The flanges define a pair of diagonal guide faces for guiding foreign matter inwardly toward the central bridge portion of the slider body. Fastener element-receiving openings are formed by the edges of the flanges which also form the guide faces. If foreign matter, such as waste thread, is lodged between teeth of the fastener elements, it is guided along the slider guide faces from the outer edge of the slider to the central bridge thus removing the foreign matter. As a result, jamming of the slider is prevented.

REFERENCES:
patent: 1966255 (1934-07-01), Marinsky
patent: 2072200 (1937-03-01), De Vore
patent: 2095270 (1937-10-01), Silberman
patent: 2325709 (1943-08-01), Samstegman
patent: 2456822 (1948-12-01), Engel
patent: 2810174 (1957-10-01), Mikulas
patent: 2824352 (1958-02-01), Foltis
patent: 2840877 (1958-07-01), Foltis
patent: 2855652 (1958-10-01), Jones
patent: 4121326 (1978-10-01), Kamiya
patent: 4142275 (1979-03-01), Krauer

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