Method and apparatus for producing stacks of folded bags

Details Method and apparatus for producing stacks of folded bags Method and apparatus for producing stacks of folded bags

1976-11-17

1978-08-15

Coan, James F.

93 32, 93 84TW, 93 93HT, B31B 2326

Patent

active

041063953

ABSTRACT:
A web of bag-making material consists of a flattened tube or a single sheet that is longitudinally folded to double thickness. The bags are formed by providing the web with transverse weld seams at intervals and, adjacent to these seams, with lines of perforations extending parallel thereto. The web is then folded and, after folding, the individual bags are severed along the lines of perforations.

REFERENCES:
patent: 3374714 (1968-03-01), Berghgracht
patent: 3507194 (1970-04-01), Schwarzkopf
patent: 3552278 (1971-01-01), Guenther
patent: 3656415 (1972-04-01), Hook, Jr.
patent: 4036116 (1977-07-01), Tetenborg et al.

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