Method of packaging a coiled trimmer line

Details Method of packaging a coiled trimmer line Method of packaging a coiled trimmer line

1999-08-13

2000-08-29

Vo, Peter

Package making

Methods

With contents treating

2064595, 206 633, B65B 1700

Patent

active

061090050

ABSTRACT:
A method and apparatus for packaging coiled nylon copolymer trimmer line comprises making the package of plastic material which is capable of melt bonding, either by the application of heat and pressure, radio frequency (RF) or by ultrasonic welding. The container comprises a backing sheet and a pre-formed bubble having an opening in it, with a flange extending outwardly around the opening. The flange is placed on the backing sheet; and the two sheets are heat-melt bonded together by a suitable technique, to produce a strong, integral package which significantly resists separation of the flange from the backing sheet. After the package has been formed, nylon or nylon copolymer, or other plastic, trimmer line is wound into the package, and the bond between the flange and the backing sheet is greater than the compression spring force exerted by the wound trimmer line against the package, preventing separation of the package parts from one another.

REFERENCES:
patent: 3776375 (1973-12-01), Rohdin
patent: 5086914 (1992-02-01), Mish et al.
patent: 5769224 (1998-06-01), Poncy et al.
patent: 5788062 (1998-08-01), Cerwin et al.

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