GB1109077A - Self sealing valve bag - Google Patents

Self sealing valve bag

Info

Publication number
GB1109077A
GB1109077A GB53667A GB53667A GB1109077A GB 1109077 A GB1109077 A GB 1109077A GB 53667 A GB53667 A GB 53667A GB 53667 A GB53667 A GB 53667A GB 1109077 A GB1109077 A GB 1109077A
Authority
GB
United Kingdom
Prior art keywords
bag
aperture
wall
folded
jan
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB53667A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
POLYPRESS NV
Original Assignee
POLYPRESS NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by POLYPRESS NV filed Critical POLYPRESS NV
Publication of GB1109077A publication Critical patent/GB1109077A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/14—Valve bags, i.e. with valves for filling
    • B65D31/147—Valve bags, i.e. with valves for filling the filling port being provided in a side wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/14—Valve bags, i.e. with valves for filling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Bag Frames (AREA)

Abstract

1,109,077. Valve bags. POLYPRESS N.V. 4 Jan., 1967 [6 Jan., 1966], No. 536/67. Heading B8K. [Also in Division B5] The upper end of a bag is folded and adhered along its end edge 6, Fig. 1, to the outer surface of the bag wall 1. Expansion of the bag, which occurs during filling through an aperture 7 in the wall, causes the wall to press against the folded section and so seal the aperture, Fig. 2. The bag may be made from thermoplastics or paper, covered with plastics, and the adhesion of the end edge 6 may be effected by welding or by adhesive strips. The bag is produced from a tube, formed of opposed sheets 1, 2, Fig. 5, joined at the side edges, supplied intermittently from a roll over a plate (10). A punch (11) co-operating with matrix 9 produces the aperture 7, and knife 12 cuts the tube into sections. After the end parts 4, 5 have been folded and adhered, the plate 10 is removed and the bag is sealed at its lower end 3.
GB53667A 1966-01-06 1967-01-04 Self sealing valve bag Expired GB1109077A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6600124A NL6600124A (en) 1966-01-06 1966-01-06

Publications (1)

Publication Number Publication Date
GB1109077A true GB1109077A (en) 1968-04-10

Family

ID=19795395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB53667A Expired GB1109077A (en) 1966-01-06 1967-01-04 Self sealing valve bag

Country Status (5)

Country Link
BE (1) BE692050A (en)
DE (1) DE1586825A1 (en)
FR (1) FR1507526A (en)
GB (1) GB1109077A (en)
NL (1) NL6600124A (en)

Also Published As

Publication number Publication date
FR1507526A (en) 1967-12-29
NL6600124A (en) 1967-07-07
BE692050A (en) 1967-05-29
DE1586825A1 (en) 1970-05-21

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