B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/114
B29D 5/10 (2006.01) B29D 5/02 (2006.01)
Patent
CA 1243153
ABSTRACT OF THE DISCLOSURE In a method of and an apparatus for continuously manufacturing slide fastener coupling elements, a molded strip of coupling element blanks is folded by a first folder unit about its longitudinal axis while still hot into a U-shaped cross-section to provide a folded strip of coupling element blanks each having a width larger than a predetermined width of each of the coupling elements as ultimately shaped. After having been heated by a hot-air blower, the hot folded strip of blanks is shaped by a second folder unit into slide fastener coupling elements of a finalized shape and dimensions through a plurality of bending stages in which the widths of the coupling element blanks are constricted stepwise by the second folder unit as the folded strip of blanks is fed therethrough.
470272
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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