US5063100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture-impervious panel capable of delayed, rapid hydration including water channels filled with water-removal material
Assignee: Amcol International Corp
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Filing: 1990-02-15
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Granted: 1991-11-05
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Expires: 2010-02-15
Abstract
Abstract A panel, and method of making the panel, useful as a water barrier including an intermediate layer of a water-swellable colloidal clay, such as bentonite, sandwiched between two layers of sheet material, such as paperboard, wherein at least one of the sheet material layers has a plurality of spaced apertures, or water channels, extending from the exterior of the panel to the intermediate water-swellable clay layer. The sheet material layer containing water channels includes a coating of a removablel material completely across the water channels in the facing sheet having controlled, predetermined water-solubility so that the intermediate water-swellable clay layer is quickly hydrated after solubilization and removal of the coating material, and to prevent clay hydration during installation, prior to removal of the coating material.
Inventors
- 👤 William Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:27
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/44; E04C2/52; E04C2/526; E04C2/528; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31808; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
95 words
A rigid panel useful as a water barrier including first and second facing sheets having a layer of water, swellable clay therebetween, one of said facing sheets being water-permeable and including a plurality of water channels therein extending from an outer surface of the one facing sheet to an inner surface of the one facing sheet said water channels containing a layer of material completely across the water channel having a predetermined water-solubility to prevent water from passing through the water channels during installation of the panel and removable by water contact after panel installation.
Claim 2
Dependent Claim
95 words
A rigid panel useful as a water barrier including first and second facing sheets having a layer of water, swellable clay therebetween, one of said facing sheets being water-permeable and including a plurality of water channels therein extending from an outer surface of the one facing sheet to an inner surface of the one facing sheet said water channels containing a layer of material completely across the water channel having a predetermined water-solubility to prevent water from passing through the water channels during installation of the panel and removable by water contact after panel installation.
Claim 3
Dependent Claim
16 words
The panel of claim 1 wherein the first and second facing sheets are formed of paperboard.
Claim 4
Dependent Claim
16 words
The panel of claim 1 wherein one of the facing sheets is a flexible fabric material.
Claim 5
Dependent Claim
29 words
The panel of claim 1 wherein the facing sheets are formed of flexible fabric material and wherein the panel further includes rigid means for providing rigidity to the panel.
Claim 6
Dependent Claim
30 words
The panel of claim 4 wherein the rigid means comprises an interior corrugated paperboard strip disposed between the outer fabric strips in contact with and secured to said fabric layers.
Claim 7
Dependent Claim
87 words
A multilayer article of manufacture useful as a water barrier comprising a pair of sheet material layers having a layer of water-swellable clay therebetween, at least one of said sheet material layers being water-permeable including a coating layer of a material on substantially the entire surface of said sheet material layer said coating layer having a predetermined water-solubility to prevent water from passing through said coated sheet material layer during installation of the article and to permit removal by water contact of the coating layer after installation.
Claim 8
Dependent Claim
87 words
A multilayer article of manufacture useful as a water barrier comprising a pair of sheet material layers having a layer of water-swellable clay therebetween, at least one of said sheet material layers being water-permeable including a coating layer of a material on substantially the entire surface of said sheet material layer said coating layer having a predetermined water-solubility to prevent water from passing through said coated sheet material layer during installation of the article and to permit removal by water contact of the coating layer after installation.
Claim 9
Dependent Claim
18 words
The article of claim 6 wherein at least one of the sheet materials layers is formed of paperboard.
Claim 10
Dependent Claim
33 words
The article of claim 7 wherein the paperboard layer includes a plurality of formed apertures and wherein the apertures contain a layer of the water-removable material in contact with the water-swellable clay layer.
Claim 11
Dependent Claim
27 words
The article of claim 6 wherein one of said sheet material layers is flexible sheet material that is water-penetrable and includes a coating of said water-removable material.
Claim 12
Dependent Claim
32 words
The article of claim 6 including coatings of said material removable by water contact over the exterior surfaces of both of said sheet material layers, and substantially coextensive with said exterior surfaces.
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) | 1994-11-04 | 1995-05-06 | 1995-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-04 | 1999-05-06 | 1999-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-04 | 2003-05-06 | 2003-11-05 | $7700.00 | Window Closed / Lapsed |