US3831382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for reducing water loss through soil by seepage
Assignee: Flintkote Co
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Filing: 1972-10-10
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Granted: 1974-08-27
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Expires: 1992-10-10
Abstract
Abstract A composition for reducing the loss of liquids by seepage through permeable ground surfaces is shown. The composition desirably comprises an aqueous emulsion of asphalt including a combination of cationic emulsifiers, a nonionic surface active agent and preferably a minor proportion of elastomer solids. The compositions are adapted for spray application on natural and man-made beds of rivers, ponds and other water impoundment and transfer structures. The stability of the emulsion is controlled so that penetration of the soil is achieved and a flexible water impervious mass is obtained.
Inventors
- 👤 F Califano
- 👤 G Stepien
- 👤 T Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:01
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/16; E02B5/00; E02B5/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
17 words
an emulsification aid-break suppressant selected from the group consisting of alkyl quaternary ammonium compounds of the formula
Claim 2
Dependent Claim
35 words
A process as recited in claim 1 wherein the surface layer oF said water containment body is first wetted with water to activate the surfaces of the materials therein and then penetrated with said composition.
Claim 3
Dependent Claim
48 words
A process as recited in claim 1 wherein the surface layer of said water containment body is first wetted with water containing said non-ionic surface active agent in an amount sufficient to wet the surfaces of the particles in said surface layer and then penetrated with said composition.
Claim 4
Dependent Claim
32 words
A process as recited in claim 3 wherein the solution used to pre-wet said surface layer contains from 1 percent to 10 percent by weight of an emulsion of said elastomeric material.
Claim 5
Dependent Claim
28 words
A process as recited in claim 4 wherein said surface layer is first wetted with from 50 to 150 gallons of solution per 100 square feet of surface.
Claim 6
Dependent Claim
26 words
A process as recited in claim 1 wherein said composition is applied to the surface layer in from 4 to 40 gallons per 100 square feet.
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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |