GB979256A - Improvements in and relating to bags and sacks - Google Patents

Improvements in and relating to bags and sacks

Info

Publication number
GB979256A
GB979256A GB742662A GB742662A GB979256A GB 979256 A GB979256 A GB 979256A GB 742662 A GB742662 A GB 742662A GB 742662 A GB742662 A GB 742662A GB 979256 A GB979256 A GB 979256A
Authority
GB
United Kingdom
Prior art keywords
bag
sleeve
filling
sealed
filled
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
GB742662A
Inventor
Richard Henry Milner
Harold George Lightfoot
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB742662A priority Critical patent/GB979256A/en
Publication of GB979256A publication Critical patent/GB979256A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)

Abstract

979,256. Valve bags. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Feb. 26, 1962, No. 7426/62. Heading B8K. An exterior filling sleeve with exterior ribbing or embossing is attached at one end around the aperture of a bag so that it can be pushed into the bag, when it has been filled, to form a valve. The bag may be formed from thermoplastic sheet or tubing with its free edges sealed together, except at the opening, where the filling sleeve, of similar material, is welded in place. Alternatively the bag may be formed from kraft paper, textile sheet, or a laminate of paper and thermoplastic material. The end of the sleeve adjacent the bag may be sealed either on the outside or the inside of the filling aperture. The sleeve may diverge slightly outwardly or inwardly. The sleeve may be connected to the bag by adhesive or may be blow moulded in one piece with the bag. The open end of the filling sleeve may be temporarily sealed when the bag has been filled.
GB742662A 1962-02-26 1962-02-26 Improvements in and relating to bags and sacks Expired GB979256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB742662A GB979256A (en) 1962-02-26 1962-02-26 Improvements in and relating to bags and sacks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB742662A GB979256A (en) 1962-02-26 1962-02-26 Improvements in and relating to bags and sacks

Publications (1)

Publication Number Publication Date
GB979256A true GB979256A (en) 1965-01-01

Family

ID=9832892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB742662A Expired GB979256A (en) 1962-02-26 1962-02-26 Improvements in and relating to bags and sacks

Country Status (1)

Country Link
GB (1) GB979256A (en)

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