US5037002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral self-supporting and recyclable liquid container
Assignee: Liqui Box Corp
•
Filing: 1990-07-11
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Granted: 1991-08-06
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Expires: 2010-07-11
Abstract
Abstract An integral self-supporting and recyclable liquid container is disclosed. The container includes an expandable plastic bag and a reinforced assembly which together define an expandable and self-contained liquid chamber from which the contents can be dispensed.
Inventors
- 👤 M. Stephen Tschanen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:36
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
164 words
A self-supporting liquid dispensing container comprising: a reinforcing body assembly including first and second generally superimposed reinforcing panels; each of said first and second reinforcing panels including a plurality of integral partitions which are hinged to each other in such a manner that when a fluid is introduced between said superimposed reinforcing panels, said first and second reinforcing panels self-erect to form a liquid reinforcing structure for containing fluid; an inflatable flexible bag having first and second sheet assembly joined together around the marginal edges thereof to define a sealed liquid containing compartment, each of said first and second sheet assemblies including at least a pair of separate flexible walls sealed about their marginal edges and defining a fluid-tight space for receiving therein a respective one of said first and second reinforcing panels; and a spout connected through at least one of said panels and sheet assemblies so as to allow the filling and dispensing of liquid into and from said liquid containing compartment.
Claim 2
Dependent Claim
164 words
A self-supporting liquid dispensing container comprising: a reinforcing body assembly including first and second generally superimposed reinforcing panels; each of said first and second reinforcing panels including a plurality of integral partitions which are hinged to each other in such a manner that when a fluid is introduced between said superimposed reinforcing panels, said first and second reinforcing panels self-erect to form a liquid reinforcing structure for containing fluid; an inflatable flexible bag having first and second sheet assembly joined together around the marginal edges thereof to define a sealed liquid containing compartment, each of said first and second sheet assemblies including at least a pair of separate flexible walls sealed about their marginal edges and defining a fluid-tight space for receiving therein a respective one of said first and second reinforcing panels; and a spout connected through at least one of said panels and sheet assemblies so as to allow the filling and dispensing of liquid into and from said liquid containing compartment.
Claim 3
Dependent Claim
28 words
The self-supporting container of claim 1 wherein said reinforcing body assembly and said flexible bag are made of the same plastic material for purposes of enhancing recycling thereof.
Claim 4
Dependent Claim
13 words
The self-supporting container of claim 2 wherein said same material is low-density polyethylene.
Claim 5
Dependent Claim
18 words
The self-supporting container of claim 1 wherein each of said reinforcing panels are comprised of a corrugated carton.
Claim 6
Dependent Claim
26 words
The self-supporting container of claim 1 wherein each of said reinforcing panels includes a plurality of partitions integrally connected by V-shaped grooves which serve as hinges.
Claim 7
Dependent Claim
38 words
The self-supporting container of claim 1 wherein each of said reinforcing panels includes a plurality of fins extending along an interior surface thereof so as to facilitate the dispensing of the bag's contents from a progressively collapsing bag.
Claim 8
Dependent Claim
35 words
The self-supporting container of claim 1 wherein said first and second pairs of separate flexible walls comprise a plurality of plastic layers heat sealed around their marginal edges to define said compartment and said space.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-05 | 1995-02-04 | 1995-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-05 | 1999-02-04 | 1999-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-05 | 2003-02-04 | 2003-08-06 | $7700.00 | Window Closed / Lapsed |