US4586628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient inner liner for lining of transport or storage containers
Assignee: Josef Nittel GmbH and Co KG
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Filing: 1983-11-02
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Granted: 1986-05-06
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Expires: 2003-11-02
Abstract
Abstract An inner liner and method of inserting the same in a container is disclosed. The liner is folded in an umbrella shape to ensure even unfolding prior to filling of the container.
Inventors
- 👤 Walter F. Nittel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:59
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/04; B65D77/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
97 words
A liner apparatus comprising, a resilient liner having two planar films bonded to each other along peripheral edges, said two planar films producing the top and bottom walls of said liner, a feed pipe bonded to and extending through said bottom wall at a center portion thereof, the top and bottom walls being folded in an umbrella-like fashion, with the central portions of the top and bottom walls retained adjacent to the other, about an axis that runs in the direction of the feed pipe, the resulting folded liner being inserted into a removable tube-like protective cover.
Claim 2
Dependent Claim
97 words
A liner apparatus comprising, a resilient liner having two planar films bonded to each other along peripheral edges, said two planar films producing the top and bottom walls of said liner, a feed pipe bonded to and extending through said bottom wall at a center portion thereof, the top and bottom walls being folded in an umbrella-like fashion, with the central portions of the top and bottom walls retained adjacent to the other, about an axis that runs in the direction of the feed pipe, the resulting folded liner being inserted into a removable tube-like protective cover.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 wherein the two planar films are circular in shape.
Claim 4
Dependent Claim
14 words
The apparatus of claim 1 wherein the two planar films are octagonal in shape.
Claim 5
Dependent Claim
30 words
The apparatus of claim 1 further comprising, a cylindrical film interposed between the two planar films, wherein one planar film is bonded to each opposite end of the cylindrical film.
Claim 6
Independent Claim
100 words
A method of manufacturing a liner apparatus, comprising, bonding two planar films together along peripheral edges and thereby forming a resilient liner wherein said two planar films define the top and bottom walls of said liner, bonding a feed pipe to and extending it through said bottom wall at a center portion thereof, folding the top and bottom walls in an umbrella-like fashion, while retaining the center portions of the top and bottom walls adjacent the other, about an axis that runs in the direction of the feed pipe, and inserting the folded liner into a removable tube-like protective cover.
Claim 7
Independent Claim
100 words
A method of manufacturing a liner apparatus, comprising, bonding two planar films together along peripheral edges and thereby forming a resilient liner wherein said two planar films define the top and bottom walls of said liner, bonding a feed pipe to and extending it through said bottom wall at a center portion thereof, folding the top and bottom walls in an umbrella-like fashion, while retaining the center portions of the top and bottom walls adjacent the other, about an axis that runs in the direction of the feed pipe, and inserting the folded liner into a removable tube-like protective cover.
Claim 8
Dependent Claim
14 words
The method of claim 5 wherein the two planar films are circular in shape.
Claim 9
Dependent Claim
14 words
The method of claim 5 wherein the two planar films are octagonal in shape.
Claim 10
Dependent Claim
30 words
The method of claim 5 further comprising, interposing a cylindrical film between the two planar films, wherein one planar film is bonded to each opposite end of the cylindrical film.
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) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |