Method of and apparatus for manufacturing a continuous slide fastener stringer chain with element-free space portions
CA 1188492 A · Owner: Yoshida Kogyo K.K. · Inventors: Takahashi, Kihei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of and apparatus for manufacturing a continuous slide fastener stringer chain including space portions devoid of coupling elements at longitudinal intervals. A pair of continuous stringer tapes is continuously fed, in synchronism with sewing machine to a sewing, area of the sewing machine while a pair of interengaged, rows of coupling elements is intermittently fed in, synchronism with the sewing machine to the sewing area. A length of coupling elements is cut off from the pair of interengaged rows of continuous coupling elements each time the latter stops moving.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted June 11, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.