CA2279681A1 - Automatic self-closing valve closure assembly for valve bags - Google Patents

Automatic self-closing valve closure assembly for valve bags Download PDF

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Publication number
CA2279681A1
CA2279681A1 CA 2279681 CA2279681A CA2279681A1 CA 2279681 A1 CA2279681 A1 CA 2279681A1 CA 2279681 CA2279681 CA 2279681 CA 2279681 A CA2279681 A CA 2279681A CA 2279681 A1 CA2279681 A1 CA 2279681A1
Authority
CA
Canada
Prior art keywords
valve
bag
automatic self
closure assembly
bags
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.)
Granted
Application number
CA 2279681
Other languages
French (fr)
Other versions
CA2279681C (en
Inventor
Roger Bannister
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.)
Amcor Flexibles North America Inc
Original Assignee
Bemis Co Inc
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
Priority claimed from US09/191,856 external-priority patent/US6126316A/en
Application filed by Bemis Co Inc filed Critical Bemis Co Inc
Publication of CA2279681A1 publication Critical patent/CA2279681A1/en
Application granted granted Critical
Publication of CA2279681C publication Critical patent/CA2279681C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Supplying Of Containers To The Packaging Station (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)

Abstract

The present invention is a valve bag with a valve assembly that provides closure during and after the filling process, thus preventing unwanted spilling and sifting of the valve bag contents through the valve opening during transporting or moving the bag to a location in which the valve is permanently sealed, and methods for making and filling such a bag. An automatic self-closing valve assembly also is provide that requires no subsequent sealing after the filling process.
CA 2279681 1998-11-12 1999-08-05 Automatic self-closing valve closure assembly for valve bags Expired - Lifetime CA2279681C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/191,856 US6126316A (en) 1996-09-05 1998-11-12 Automatic self-closing valve closure assembly for valve bags
US191,856 1998-11-12

Publications (2)

Publication Number Publication Date
CA2279681A1 true CA2279681A1 (en) 2000-05-12
CA2279681C CA2279681C (en) 2006-01-03

Family

ID=31186549

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2279681 Expired - Lifetime CA2279681C (en) 1998-11-12 1999-08-05 Automatic self-closing valve closure assembly for valve bags

Country Status (2)

Country Link
CA (1) CA2279681C (en)
MX (1) MXPA99010349A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108249023A (en) * 2017-12-04 2018-07-06 四川新明峰包装科技有限公司 A kind of double paper valve-port packaging bags

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108249023A (en) * 2017-12-04 2018-07-06 四川新明峰包装科技有限公司 A kind of double paper valve-port packaging bags

Also Published As

Publication number Publication date
MXPA99010349A (en) 2004-02-12
CA2279681C (en) 2006-01-03

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Legal Events

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EEER Examination request
MKEX Expiry

Effective date: 20190806