Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1996-02-06
1998-09-29
Ball, Michael W.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156180, 156222, 15624411, 15624426, 156498, 30276, 30347, A01D 5000
Patent
active
058141766
ABSTRACT:
A process for forming flexible cutting line for use in rotary vegetation trimmers of the type having two or more monofilament lines mounted on a common spool. The line produced by the process of the present invention defines two monofilament strands joined together in a side by side relationship by a severable bond. The process includes the steps of extruding one or more pairs of molten monofilament strands in proximate disposition, directing the strands together in a cooling quench bath, pulling the strands in an adjacent abutting disposition through the quench bath to initiate the crystallization and bonding together of the two strands, concurrently stretching and heating the bonded strands to effect parallel alignment of the molecular chain in the strands, heating the strands in a relaxed disposition, wetting the strands and spooling the wetted strands for storage and transportation.
REFERENCES:
patent: 3690978 (1972-09-01), Nishizawa et al.
patent: 4282653 (1981-08-01), Comer et al.
Ball Michael W.
Proulx Manufacturing, Inc.
Tolin Michael A.
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