Method and apparatus for manufacturing mailing envelopes or bags

Details Method and apparatus for manufacturing mailing envelopes or bags Method and apparatus for manufacturing mailing envelopes or bags

1987-04-15

1988-12-06

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

493228, 493233, B31B 2316, B31B 2322, B31B 125

Patent

active

047893508

ABSTRACT:
In the inventive method mailing bags are manufactured in an appropriately constructed flat- and lateral folding back machine. A tube fabricated from a web is provided in the region of its longitudinal borders with two triangularly-shaped and punched cut-outs, through which there are defined subsequent separating lines for separating individual tubular pieces from the tube. One or an upper panel of the tube is obtained by two separating cuts spaced parallel from, and at a distance from one another, while the lower panel is obtained by a separating cut positioned between the afore-described separating cuts for the upper panel. The bottom closure and the closure cap of the mailing bag are formed by these cuts.

REFERENCES:
patent: 1525356 (1925-02-01), Arrouquier
patent: 1798168 (1931-03-01), Poppe
patent: 2129842 (1938-09-01), Holweg
patent: 2569630 (1951-10-01), French
patent: 3390617 (1968-07-01), Cloud et al.

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