Valve bags

  • Inventors:
  • Assignees: Reed International Ltd
  • Publication Date: June 26, 1974
  • Publication Number: GB-1357544-A


1357544 Valve bags REED INTERNATIONAL Ltd 21 Dec 1971 [29 Sept 1970] 46350/70 Heading B5D [Also in Division B8] A paper sleeve 4 is adhered within the valve of a valve bag 1 so that a standard filler pipe can fit closely within the valve to prevent egress of material during filling. The valve comprises an inwardly open cuff 2 which has a sheet of polythene 3 disposed between its layers to prevent content loss after filling. The bag may be block-bottomed.




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Cited By (4)

    Publication numberPublication dateAssigneeTitle
    GB-2173769-AOctober 22, 1986Reed Packaging LtdPaper sacks
    US-6074095-AJune 13, 2000Bemis Company, Inc.Four member valve closure assembly for valve bags
    US-6126316-AOctober 03, 2000Bemis Company, Inc.Automatic self-closing valve closure assembly for valve bags
    WO-0075028-A1December 14, 2000Blue Circle Industries PlcValve de remplissage pour sacs