Manufacture of fasteners using directive heating during stretchi

Details Manufacture of fasteners using directive heating during stretchi Manufacture of fasteners using directive heating during stretchi

1977-07-18

1980-01-15

Lowe, James B.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Stretching or stretch forming

24150FP, 264297, 425383, B29C 1702

Patent

active

041838947

ABSTRACT:
Assemblages of fasteners formed by the molding of connected individual members which are removed from the mold and positioned as entire assemblages in end jaws that neither open nor close and are then separated while the filament portions of the fasteners are subjected to directed heat, desirably in the vicinity of the junctions of the filaments with associated cross bars, in order to controllably and substantially simultaneously stretch filaments completely to the junctions with their associated cross bars while avoiding the danger of having one or more of the simultaneously stretched filaments break because of random stretching effects.

REFERENCES:
patent: 2515175 (1950-07-01), Arbogost
patent: 3380122 (1968-04-01), Kirk
patent: 3508553 (1970-04-01), Kanbar et al.
patent: 3577987 (1971-05-01), Bronnenkant
patent: 3624670 (1971-11-01), Gordon
patent: 3781402 (1973-12-01), Hanggi et al.

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