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1. (WO1979000064) SEALABLE LONGITUDINAL SLEEVELESS VALVE BAG
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/000064 International Application No.: PCT/US1978/000049
Publication Date: 22.02.1979 International Filing Date: 25.07.1978
IPC:
B65D 33/18 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
D
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
33
Details of, or accessories for, sacks or bags
16
End- or aperture-closing arrangements or devices
18
using adhesive applied to integral parts, e.g. to flaps
Applicants:
Inventors:
Priority Data:
81890025.07.1977US
Title (EN) SEALABLE LONGITUDINAL SLEEVELESS VALVE BAG
(FR) SAC A SCELLEMENT LONGITUDINAL DEPOURVU DE VALVE SAILLANTE
Abstract:
(EN) A bag of tubular form closed at one end and partially closed at the other end by a first rear wall portion (58) being folded over and sealed to a front wall (34, 35). The opening between a second rear wall portion (59) and opposed front wall (34, 35) forms the valve which is sealed after filling by folding the longitudinally extending second rear wall portion (59) over and sealing it to the opposed front wall (34, 35) using the folded first rear wall portion (58) as a reference. Adjacent lateral termination of the plural ply rear wall portions are oppositely stepped so as to overlap when sealed to the front wall (34, 35).
(FR) Le sac, de forme tubulaire, est ferme a l"une de ses extremites et partiellement ferme a l"autre par une paroi arriere dont une premiere portion (58) est pliee par-dessus une paroi avant (34, 35) et fixee a celle-ci. L"ouverture entre une seconde portion (59) de la paroi arriere et la paroi avant opposee (34, 35) constitue la valve qui est fermee apres remplissage par pliage de la seconde portion (59), qui s"etend longitudinalement, et scellement de cette derniere a la paroi avant opposee (34, 35) en utilisant la premiere portion pliee (58) comme reference. Les parties laterales terminales de la paroi arriere a plusieurs couches sont disposees de facon a se chevaucher lorsqu"elles sont fixees a la paroi avant (34, 35).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)