Patent ID: 8484810
Filing Date: 2013-07-16
Classification: A44B,Y10T

Abstract:
1. A continuous-coil type waterproof slide fastener, comprising: a pair of symmetrical support tapes each having a first face, a second face opposite to said first face forming an inner edge between the second face and a vertical wall of an inner longitudinal edge joining said first face and said second face; two rows of coupling elements respectively formed of a continuous length of monofilament and respectively secured to said support tapes along said inner edge of the second face of each of said two support tapes; wherein a high polymer elastic member is bonded to the vertical wall of the inner longitudinal edge of each of said two support tapes and transversely extending from the vertical wall of the inner longitudinal edge of each of said two support tapes to a predetermined distance, said high polymer elastic member further comprising a covering portion on said inner edge of the second face of each of said two support tapes and a filling portion penetrates into inner chinks in each of said two rows of coupling elements, said high polymer elastic member being cut off along a central slit between said two support tapes; two symmetrical pair of positioning tapes relatively narrower than said support tapes, said two positioning tapes being disposed and respectively attached to said two rows of coupling elements at an outer side opposite to said support tapes and respectively secured with said two rows of coupling elements to the second face of each of said two support tapes with sewing stitches.