APPARATUS AND METHOD OF MANUFACTURE OF TRAINS OF SLIDE FASTENING ELEMENTS

摘要

PATENT APPLICATION INVENTOR: GEORGE B. MOERTEL TITLE: APPARATUS AND METHOD OF MANUFACTURE OF TRAINS OF SLIDE FASTENING ELEMENTS 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.