Double-walled hollow rod of flexible tubular material

Details Double-walled hollow rod of flexible tubular material Double-walled hollow rod of flexible tubular material

1978-06-09

1981-06-16

Coan, James F.

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

493267, 493455, A22C 1300

Patent

active

042735513

ABSTRACT:
This invention relates to a stiff tubular hollow rod, said rod being substantially double-walled over its entire length and comprising one single length of flexible tubing, the wall of which is substantially free of openings and at least one of the surfaces of the tubing is provided with a coating, said rod comprising a shirred outer tube and an inner tube substantially free of folds arranged in the hollow space of said shirred outer tube constituting the casing for the inner tube, the inner tube being joined to the shirred outer tube at one of its ends and sealed at the other. The invention also relates to processes for making said hollow double-walled tubular rod of flexible tubing and to a sausage produced using said hollow tubular rod of flexible tubing.

REFERENCES:
patent: 3868895 (1975-03-01), Hart et al.
patent: 3971301 (1976-07-01), Becker et al.
patent: 4007761 (1977-02-01), Beckman
patent: 4075938 (1978-02-01), Martinek

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