Stock material or miscellaneous articles – Pile or nap type surface or component – Particular shape or structure of pile
Patent
1983-10-20
1984-06-12
Thomas, Alexander
Stock material or miscellaneous articles
Pile or nap type surface or component
Particular shape or structure of pile
428 93, 428100, 428120, 428 95, 24306, A44B 1700
Patent
active
044541830
ABSTRACT:
In an elongate strip material which can be severed into lengths to form at least a part of a fastener. The strip material comprises a backing and a multiplicity of lengths of polymeric monofilament having cross sections defining a plurality of radially projecting lobes, each length including a central bight portion secured in the backing, and two stem portions extending from opposite ends of the bight portion and projecting away from the backing. Enlarged heads are formed by heat at the ends of the stem portions opposite the backings, and the heads include hook-like portions spaced from the stem portions and projecting along the stem portions toward the backing that result from heating the ends of the monofilaments because of their lobed cross sections.
REFERENCES:
patent: 3009235 (1961-11-01), Mestral
patent: 3138841 (1964-06-01), Naimer
patent: 3527001 (1970-09-01), Kleemeier et al.
patent: 3577607 (1971-05-01), Ikoma
patent: 3708833 (1973-01-01), Ribich
patent: 3708837 (1973-01-01), Chiba
patent: 3770359 (1973-11-01), Hamano
patent: 4024003 (1977-05-01), Buhler
patent: 4290832 (1981-09-01), Kalleberg
Plastics World, "Continuous Molding", pp. 64-67, 12/80.
Huebsch William L.
Minnesota Mining and Manufacturing Company
Sell Donald M.
Smith James A.
Thomas Alexander
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