US4091986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container having improved filling valve
Assignee: Graphic Packaging International LLC
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Filing: 1977-05-04
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Granted: 1978-05-30
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Expires: 1997-05-04
Abstract
Abstract An industrial container or bag is disclosed as having a filling valve for particulate materials, which valve is an effective seal following a filling operation and which valve is flexibly mounted to preclude its rupture during the filling operation.
Inventors
- 👤 Robert T. Eberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:55
CPC Classifications
B; B65; B65D; B65D31/00; B65D31/14; Y; Y10; Y10S; Y10S383/00; Y10S383/903
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
131 words
An industrial container comprising a multiwall bag having an end closure, a filling entry in said end closure, means defining a paper tube extending from said entry to an interior portion of said bag, a sleeve extending through said paper tube and adapted to receive a filling nozzle, means securing an upper portion of said sleeve to an adjacent portion of said paper tube, and a flexible hinge element having first and second superimposed parts with the first part secured to a lower portion of said sleeve and the second part secured to an adjacent portion of said paper tube, said flexible hinge element providing additional support for said sleeve whereby said sleeve is secured from tearing during a nozzle filling operation which increases the weight of material in the bag.
Claim 2
Dependent Claim
131 words
An industrial container comprising a multiwall bag having an end closure, a filling entry in said end closure, means defining a paper tube extending from said entry to an interior portion of said bag, a sleeve extending through said paper tube and adapted to receive a filling nozzle, means securing an upper portion of said sleeve to an adjacent portion of said paper tube, and a flexible hinge element having first and second superimposed parts with the first part secured to a lower portion of said sleeve and the second part secured to an adjacent portion of said paper tube, said flexible hinge element providing additional support for said sleeve whereby said sleeve is secured from tearing during a nozzle filling operation which increases the weight of material in the bag.
Claim 3
Dependent Claim
17 words
An industrial container as claimed in claim 1 wherein the hinge element has a generally V-shaped configuration.
Claim 4
Dependent Claim
14 words
An industrial container as claimed in claim 2 wherein the securing means is glue.
Claim 5
Dependent Claim
21 words
An industrial container as claimed in claim 2 wherein said V-shaped hinge element has an opened end facing toward said entry.
Claim 6
Dependent Claim
22 words
An industrial container as claimed in claim 2 wherein said V-shaped hinge element has an opened end facing away from said entry.
Claim 7
Dependent Claim
37 words
An industrial container as claimed in claim 2 wherein said sleeve comprises a thermoplastic which is made of polyethylene and has an interior end projecting beyond said V-shaped hinge element into the interior portion of said bag.
Claim 8
Dependent Claim
15 words
An industrial container as claimed in claim 2 wherein said sleeve is made of paper.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |