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    Slide fastener manufacture
    21.
    发明授权
    Slide fastener manufacture 失效
    滑动紧固件制造

    公开(公告)号：US3565714A

    公开(公告)日：1971-02-23

    申请号：US3565714D

    申请日：1967-12-15

    申请人： WALDES KOHINOOR INC

    发明人： WALDES GEORGE

    IPC分类号： A44B19/40 ,  B32B7/04

    CPC分类号： A44B19/406

    摘要： PLICATION OF A SUITABLE SOLVENT TO SAID SURFACE PORTIONS, AS PERMITS THE THREADS MAKING UP SAID STITCHES TO BED TO A LIMITED DEGREE IN THE SOFTENED PLASTIC MATERIAL, AND THEREAFTER ALLOWING SAID SOFTENED PLASTIC MATERIAL TO REHARDEN, THUS TO LOCK THE STITCHES TO SAID COIL CONVOLUTIONS.

    A METHOD OF FIXING THE STICHES BY WHICH THE PLASTIC COILS OF PLASTIC-COIL TYPE FASTENER OR ZIPPER CHAINS ARE SECURED TO THEIR RESPECTIVE TAPES THEREBY TO PREVENT SHIFTING OR UNLOOSENING THEREOF, WHICH COMPRISES SOFTENING THE PLASTIC MATERIAL OF SAID COILS IN THE UPPER SURFACE PORTIONS OF THE CONVOLUTIONS OF THE COILS WHICH ARE TRAVERSED BY THE STICHES AS THEY PROGRESS ALONG THE COILS, BY THE AP-