Apparatus for manufacturing of trains of slide fastening element

Details Apparatus for manufacturing of trains of slide fastening element Apparatus for manufacturing of trains of slide fastening element

1978-01-30

1979-01-30

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

To make slide fastener element

425814, 425308, B29D 500

Patent

active

041370341

ABSTRACT:
In the manufacture of trains of fastening elements for slide fasteners, flowable synthetic polymer resin is injected into gate or runner channels formed in a cavity wheel and extending beneath one edge of a band enclosing cavities of the cavity wheel such that the flowable synthetic polymer resin flows through the channels into the cavities to form fastening elements.

REFERENCES:
patent: 2169178 (1939-08-01), Sunback
patent: 3196196 (1965-07-01), Burbank
patent: 3414948 (1968-12-01), Cuckson et al.
patent: 3445915 (1969-05-01), Cuckson et al.
patent: 3594865 (1971-07-01), Erb
patent: 3849042 (1974-01-01), Anderegg
patent: 3897192 (1975-07-01), Heimberger et al.
patent: 3917787 (1975-11-01), Hansen

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