B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/114
B29D 5/06 (2006.01) A44B 19/40 (2006.01) A44B 19/42 (2006.01) B29C 71/02 (2006.01) B29D 5/00 (2006.01)
Patent
CA 1214609
METHOD AND APPARATUS FOR HEAT SETTING FASTNER ELEMENTS Abstract: A method of heat setting spaced fastener elements on a fastener chain includes contracting a formed thermoplastic wire constituting the fastener elements, while heating the fastener chain to which the formed wire is affixed, until the pitch of the fastener elements attains a predetermined value smaller than the value of a desired pitch and sub- sequently cooling the formed wire while the wire is stretch- ed to provide the desired element spacing. Apparatus for practicing the method includes a rotated heating wheel having circumferential teeth the pitch whereof is less than the desired element pitch in order to engage and contract the formed thermoplastic wire while the fastener chain bearing the wire is heated, a rotated cooling wheel having circumferential teeth the pitch whereof is equal to the desired element pitch in order to engage and stretch the molded wire while the fastener chain, received from the heating wheel, is cooled, and means for heating the fastener chain as the chain traverses the outer periphery of the heating wheel.
453109
Gowling Lafleur Henderson Llp
Yoshida Kogyo K.k.
LandOfFree
Method and apparatus for heat setting fastener elements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for heat setting fastener elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for heat setting fastener elements will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1199049