Tipped lace

Details Tipped lace Tipped lace

1976-10-12

1978-02-21

Whitby, Edward G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 736, 156180, 1565802, 156583, 264 23, 264 69, 264159, 264248, 264322, B32B 3120

Patent

active

040750469

ABSTRACT:
The method of rigidifying portions of flexible structures comprised in part or wholly of yarns comprised of man-made fibers of filaments wherein the fibers or filaments of the yarns become welded to each other, specifically to a method of welding the constituent yarns of shoelaces at the ends of the laces so as to form rigid tips of reduced cross section at the ends; to joining two or more yarns at predetermined intervals to form a compound structure; and to joining parallel or crossing portions of yarns arranged in a predetermined relation to each other to form a dimensionally stable structure, by means of sonic vibration supplemented by pressure; and to apparatus for carrying out the method.

REFERENCES:
patent: 1040662 (1912-10-01), Gallison
patent: 3184354 (1965-05-01), Strother
patent: 3386870 (1968-06-01), Morin
patent: 3542618 (1970-11-01), DeVaughn
patent: 3575752 (1971-04-01), Carpenter
patent: 3616064 (1971-10-01), Long et al.

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