Packaging bag having tear-open means

Details Packaging bag having tear-open means Packaging bag having tear-open means

1991-12-20

1993-06-29

Garbe, Stephen P.

Flexible bags

Bag having means to facilitate opening it by severing bag...

229 8705, 383107, B65D 3010, B65D 6530

Patent

active

052228134

ABSTRACT:
A packaging bag made of sheet material includes a longitudinal seal situated at the longitudinal bag edge and extending parallel to the bag length. The longitudinal seal bonds together at least two layers of sheet material. The packaging bag further has two transverse seals extending parallel to the bag width and intersecting the longitudinal seal. Each transverse seal bonds together at least two layers of sheet material. A tear-open slit is provided in the longitudinal seal and passes through at least three layers of sheet material of the packaging bag.

REFERENCES:
patent: 684181 (1901-10-01), Briery
patent: 2103389 (1937-12-01), Salfisberg
patent: 2248266 (1941-07-01), Abrams
patent: 2350132 (1944-05-01), Rohdin
patent: 2496753 (1950-02-01), Salfisberg
patent: 2542206 (1951-02-01), Nichols
patent: 2851212 (1958-09-01), Parmer
patent: 2923404 (1960-02-01), Adell
patent: 2946434 (1960-07-01), Brina
patent: 3164695 (1965-01-01), Sanni
patent: 3809220 (1974-05-01), Arcudi
patent: 5060803 (1991-10-01), Beer et al.

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