Method for making a dunnage shock absorber

Details Method for making a dunnage shock absorber Method for making a dunnage shock absorber

1985-06-06

1987-12-22

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156145, 156147, 15624414, 156250, 156253, 428 12, 428178, 53451, 53551, 53552, B32B 3114

Patent

active

047145064

ABSTRACT:
A dunnage shock absorber and a method and apparatus for making the same is disclosed. The shock absorber is constructed from plastic material which forms a series of trigonal-shaped, gas-filled units which maintain adequate shock absorbing characteristics over a broad range of temperature conditions. This disclosed method includes the steps of forming a plastic tubular body, introducing a cooled gas into the body and forming individual trigonal-shaped units having cooled gas entrapped through angularly heat sealing the edges of such units. The disclosed apparatus forms plastic film into a series of gas-filled trigonal units through the use of fin seal rollers to seal the film into a tubular body. Sponge-like rollers downline of the fin seal rollers grip the tubular body and a conduit injects cooled gas into the tubular body. Horizontal and vertical sealers are provided downline of the sponge-like rollers to heat seal the tubular body with gas entrapped therein.

REFERENCES:
patent: 3090175 (1963-05-01), Berglund
patent: 3226285 (1965-12-01), Iovenko
patent: 3347363 (1967-10-01), Dykes et al.
patent: 3703430 (1972-11-01), Rich
patent: 3900356 (1975-08-01), Koch et al.
patent: 4076121 (1978-02-01), Clayton et al.
patent: 4076872 (1978-02-01), Lewicki et al.
patent: 4553887 (1985-11-01), Reeves
patent: 4564407 (1986-01-01), Tsuruta

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