US3583166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stabilizing soils with controlled gelling of silicate grout solutions
Assignee: EDWARD D GRAF
•
Filing: 1969-03-10
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Granted: 1971-06-08
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Expires: 1989-03-10
Abstract
Abstract Use of portland cement as a gelling agent for aqueous alkali silicate one shot grout solutions in which the amount of cement is regulated to achieve a predetermined gelling time and strength of grout after setting and in which the gelling time is also regulated by the addition of a predetermined amount of phosphoric acid.
Inventors
- 👤 Edward D Graf
- 👤 Jason G Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:43
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/02; C09K17/12; C04; C04B; C04B28/00; C04B28/24; C04B28/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
The improved method in accordance with claim 1 and wherein said portland cement concentration is about 10-300 pounds per 100 gallons of water in the grouting solution.
Claim 2
Dependent Claim
27 words
The improved method in accordance with claim 1 wherein the substrate is initially open to water flow therethrough and sufficient grouting is applied to shutoff water flow.
References Cited (Backward Citations)
US1942299A
Cited
US2053562A
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US2077258A
Cited
US2233872A
Cited
US2210545A
Cited
US3178299A
Cited
US3335018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |