Packaging bag, especially for cooked ham, provided with drain va

Flexible bags – With venting or ventilation means – Opening in bag material

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Details

229 8711, 383 58, 426113, 426129, 426412, B65D 3301

Patent

active

050245384

ABSTRACT:
A packaging bag, in particular for cooked ham, made of thermoweldable material and provided, on at least one of its walls, with a drainage hole. The inside of the bag also includes a drainage valve secured at the wall of the bag. The drainage valve comprises a disc of a plastic material, and is provided with a plurality of radial, spaced ribs projecting from its surface. The ribs face the internal surface of the wall of the bag, and the wall is secured to the ribs by thermowelding. The center zone of the disc will match with the center zone of the drainage hole.

REFERENCES:
patent: 436287 (1890-09-01), Marshall
patent: 1924903 (1933-08-01), Birdseye
patent: 2071300 (1937-02-01), Gammeter
patent: 2632723 (1953-03-01), Bennett
patent: 2802743 (1957-08-01), Ellies
patent: 2849322 (1958-08-01), Brucker
patent: 2876112 (1959-03-01), Vail
patent: 3074798 (1963-01-01), Palmer
patent: 3297234 (1967-01-01), Honsel et al.
patent: 3730076 (1973-05-01), Levin

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