Container with closing sheet - has low density laminar coating compressed at sealing weld seam

The container has a closing sheet sealed or welded in position along the edge of its opening. It or the sheet has, at least at the seam a laminar coating of low-density material. This coating (1, 11) is compressed at the seam (5) by between 3 and 40%. Its density can be less than 500 grammes per lit...

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Bibliographic Details
Main Author T.H. LOON,JAN
Format Patent
LanguageEnglish
German
Published 22.03.1979
Subjects
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
CONVEYING
HANDLING THIN OR FILAMENTARY MATERIAL
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
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Summary:The container has a closing sheet sealed or welded in position along the edge of its opening. It or the sheet has, at least at the seam a laminar coating of low-density material. This coating (1, 11) is compressed at the seam (5) by between 3 and 40%. Its density can be less than 500 grammes per litre, and it can preferably be of extruded plastic foam. The degree of compression can be between 10 and 25% being typically effected at the time of the sealing or welding operation. The design greatly reduces the risks of defective seams, nor is ultra-accurate setting of the pressure exerted by the welding jaws necessary.
Bibliography:Application Number: DE19772740922