Title: Warp-knit slide-fastener stringer half and method of making same

Abstract: A slide-fastener stringer half has an elongated warp-knitted tape having a pair of opposite faces and a pair of opposite longitudinally extending edges. The tape is knit with a plurality of chained warp yarns each forming a respective longitudinally extending loop chain or pillar defining a respective longitudinally extending wale, a first weft filament laid into and extending over two of the chains at one of the edges of the tape, a group of second weft yarns lapped into the chains across the full width of the tape, and a group of third weft yarns laid into all of the chains except that chain immediately at the one edge. A continuous mono-filamentary coupling element having a succession of turns is secured to one face of the tape along the one edge by stitching which overlies the turns, extends through the tape, and has a needle thread on the other face of the tape between two of the chains at the one edge.

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Inventors: Heimberger, Helmut (Locarno, CH)

Application Number: 728033
Filing Date: 1976-09-30
Publication_date: 1979-03-06
Assignee: Optilon W. Erich Heilmann GmbH (Cham, CH)
Primary Class(es): 24/393 66/190, 66/195
Other Classes:
US Patent Ref:

2485307	Oct, 1949	Newman	66/193.
2706898	Apr, 1955	Gross et al.	66/193.
3183685	May, 1965	Riehl	66/193.
3448595	Jun, 1969	Baltzer et al.	66/195.
3708836	Jan, 1973	Frolich et al.	24/205.
3848556	Nov, 1974	Terada et al.	24/205.
3874036	Apr, 1975	Yoshikawa	24/205.
3881473	May, 1975	Corvi et al.	66/195.
3922760	Dec, 1975	Matsuda	24/205.
3983721	Oct, 1976	Matsuda	66/195.

Other Refs:
Primary Examiner: Feldbaum, Ronald
Assistant Examiner:
Attorney: Ross; Karl F.