B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/116
B29D 5/00 (2006.01) A44B 19/42 (2006.01) B29C 45/14 (2006.01) B29D 5/02 (2006.01)
Patent
CA 1163064
ABSTRACT OF THE DISCLOSURE A method of manufacturing a continuous slide fastener stringer, comprising the steps of: providing a continuous stringer tape having a plurality of openings along a longi- tudinal edge thereof at regular intervals of a first distance d; then placing a part of the tape between a pair of mold members defining a number of mold cavities spaced at regular intervals of a second distance D slightly greater than the first distance d; then stretching the part of the tape until the openings in that part are aligned with the mold cavities; then injecting melted synthetic resin material into mold cavities, while the mold members are closed, to form on the part of the tape a number of the injection-molded coupling elements one at each of the openings; and repeating the preceding steps, except the first mentioned step, for a succeeding part of the tape. An apparatus for carrying out the method is also disclosed.
361454
Takahashi Kihei
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
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