Method for manufacturing slide fastener filament

Details Method for manufacturing slide fastener filament Method for manufacturing slide fastener filament

1977-08-19

1979-04-17

Hoag, W. E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Reshaping running or indefinite-length work

264294, 264295, 264320, 264339, B29D 500, B29C 1702

Patent

active

041500865

ABSTRACT:
A method for manufacturing part of a slide fastener includes the steps of deforming an initially substantially straight filament portion into a filament portion of V-shaped configuration having a pair of legs which meets at a crest of the deformed portion of V-shaped configuration. Simultaneously the deformed V-shaped portion of the filament is compressed at its crest to form a tooth of the slide fastener at this crest of the V-shaped portion. Immediately thereafter the legs of the V-shaped portion are pushed together while situating them in side-by-side relation and while displacing these legs into a tooth gap between a pair of teeth of a rotary gear.

REFERENCES:
patent: 3197537 (1965-07-01), Hansen
patent: 3412438 (1968-11-01), Sim
patent: 3672805 (1972-06-01), Porepp
patent: 3787164 (1974-01-01), Jakob

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