Apparatus for producing coupling elements for slide-fastener str

Details Apparatus for producing coupling elements for slide-fastener str Apparatus for producing coupling elements for slide-fastener str

1980-11-14

1982-05-18

Lowe, James B.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Endless surface means to shape fluent material

264252, 425545, 425814, B29D 500

Patent

active

043302440

ABSTRACT:
An apparatus for forming coupling members of synthetic resin for application to a support tape in the production of a slide-fastener stringer comprises a forming wheel to which an endless band is fed to form mold cavities on the periphery of the wheel which are filled with synthetic resin. According to the invention, a further band is fed to overlie the first band and define undercut portions of the cavity to produce projections in the molded members which can engage when the latter are applied to a support tape. A continuous core can be fed to the drum periphery to be embedded in the coupling members as they are formed so that the row of coupling members is produced as a succession of teeth on this continuous element.

REFERENCES:
patent: 2511402 (1950-06-01), Firing
patent: 4096225 (1978-06-01), Kowalski
patent: 4176149 (1979-11-01), Moertel
patent: 4268474 (1981-05-01), Moertel

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