Manufacturing container or tube from paper; or other manufacturi – With cutting – breaking – tearing – or abrading – And with bending
Patent
1985-03-07
1986-12-16
Husar, Francis S.
Manufacturing container or tube from paper; or other manufacturi
With cutting, breaking, tearing, or abrading
And with bending
493 80, 493963, B31B 114, B31B 990
Patent
active
046294473
ABSTRACT:
A method and apparatus for producing rectangular lids with a folded tear tab at each corner from a continuous web of foil using a cutting device to cut a generally perpendicular incision opposite each other in each edge of the foil web, a folding tool having two angled folding edges running toward each other in a direction toward the middle of the foil web and intersecting at a point in the cutting plane of the cutting device that folds the areas of foil on both sides of the incision back on themselves to form two tear tabs, and a cut-off device to cut the foil web into discrete lengths in continuation of the cuts in the edges of the web to form the lids.
REFERENCES:
patent: 768484 (1904-08-01), Ruth
patent: 974704 (1910-11-01), Parrish
patent: 1130590 (1915-03-01), Gage
patent: 2276854 (1942-03-01), Margadant
patent: 2933023 (1960-04-01), Weber
patent: 3054679 (1962-09-01), Bradford
patent: 3183800 (1965-05-01), Farrell et al.
patent: 3610113 (1971-10-01), Schwarzkopf
patent: 4410089 (1983-10-01), Bortolani
Alcan Ohler GmbH
Husar Francis S.
Terrell William E.
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