Flexible bags – With closure – Gathered bag mouth
Patent
1987-11-04
1989-08-08
Marcus, Stephen
Flexible bags
With closure
Gathered bag mouth
383 71, 383 77, B65D 3328
Patent
active
048547352
ABSTRACT:
A series of bags are fabricated using a continuous, high-speed bag-forming process is which an elongated section of flattened film tubing is longitudinally conveyed toward a receiving station in which the formed bags are suitably packaged. As the flattened tube is moved toward the receiving station, elongated plastic film tie elements are sequentially formed and welded along relatively large area end portions thereof to at least two layers of a side edge portion of the flattened tube at longitudinally spaced locations thereon adjacent the upper end locations of the individual bags, the resulting free end portions of the tie elements overlying the flattened tube. Each of the resulting integral tie elements may be looped around an upper end portion of its associated bag and then firmly pulled to close the bag, the resulting loop being tightened either by first passing the free end portion of the tie element therethrough or by first passing the free end portion through an aperture formed in the tie element-bag weld area. In either case the relatively large, multiple layer weld area which secures the tie element to a side edge portion of its bag provides sufficient strength so that separation of the tie element from its bag, during tightening of the loop around the upper bag end, is effectively prevented.
REFERENCES:
patent: 492071 (1893-02-01), Vaughan
patent: 893759 (1908-07-01), Thomas
patent: 1181148 (1916-05-01), Linton
patent: 1236285 (1917-08-01), Gallie
patent: 1382394 (1921-06-01), Spurgin
patent: 2849171 (1958-08-01), O'Brien
patent: 2920670 (1960-01-01), Mohlmann
patent: 2980314 (1961-04-01), Adams
patent: 3107842 (1963-10-01), Guilfoyle
patent: 3285309 (1966-11-01), Northcott
patent: 3481461 (1969-12-01), Paxton
patent: 3565738 (1971-02-01), Kirkpatrick
patent: 3633247 (1972-01-01), Clayton
patent: 3662434 (1972-05-01), Clayton
patent: 3664575 (1972-05-01), Lake
patent: 3716182 (1973-02-01), Korn
patent: 3752388 (1973-08-01), Lynch
patent: 3865303 (1975-02-01), Korn
patent: 3889872 (1975-06-01), Lin
patent: 3974960 (1976-08-01), Mitchell
patent: 3982687 (1976-09-01), Auer et al.
patent: 4008851 (1977-02-01), Hirsch
patent: 4077562 (1978-03-01), Ballin
patent: 4445230 (1984-04-01), Spadaro
patent: 4778283 (1988-10-01), Osborn
Ironclad, Corporation
Marcus Stephen
Stucker Nova
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