Method for producing enclosed multipaneled envelopes

Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – Including application of heat

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493342, 493346, 493959, B31D 500

Patent

active

042907632

ABSTRACT:
A method for producing an enclosed, multipaneled envelope from webs of material in a manner such that the desired multipaneled shape of the envelope can be formed by a single peripheral application of a platen sealing device to positioned webs comprising a first web, and second web with at least one folded web interposed therebetween. Both geometric and nongeometric multipaneled envelopes can be produced in this manner from materials suitable for filling with a lighter-than-air gas to form toy balloons and the like.

REFERENCES:
patent: 1625394 (1927-04-01), Roberts
patent: 1885917 (1932-11-01), Kelemen et al.
patent: 3006257 (1961-10-01), Orsini
patent: 3380646 (1968-04-01), Doyen et al.
patent: 4038777 (1977-08-01), Schwartz
patent: 4077588 (1978-03-01), Hurst

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