Method and apparatus for packaging insulated duct

Details Method and apparatus for packaging insulated duct Method and apparatus for packaging insulated duct

1974-11-15

1976-02-24

McGehee, Travis S.

Package making

Interrelated or safety controls

53 22A, 53114, 53112A, 53124B, 100 90, B65B 6302

Patent

active

039396223

ABSTRACT:
The apparatus of this invention axially compresses radially self-sustaining tubular duct for packaging in a container which is substantially shorter than the fully extended length of the duct. The duct passes between power operated conveyors applying tractive force to opposite sides of the duct and is positively driven to be axially compressed longitudinally into the container, the container being positioned in downstream adjacent relation to the power operated conveyors. A vacuum device is provided to exhaust air from within the duct to provide a partial vacuum therein while the duct is longitudinally compressed for packaging within its container. This invention also set forth a method of packaging tubular duct by conveying the duct into a container, sealing the duct and exhausting air from the sealed duct while driving the trailing end of the sealed duct into the container under partial vacuum.

REFERENCES:
patent: 2696443 (1954-12-01), Allbright
patent: 3827210 (1974-08-01), Smalley et al.
patent: 3848360 (1974-11-01), Million

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