US4092832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of correcting the height level of a foundation
Assignee: Paul Anderson Industrier AB
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Filing: 1976-09-07
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Granted: 1978-06-06
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Expires: 1996-09-07
Abstract
Abstract Disclosed is a method of correcting the height level of a concrete foundation or the like which is supported on a loose soil material. The bearing capacity of the soil material has been locally increased under the foundation by means of an oblong casing which is open at its opposite ends and has been driven down into the ground in order to isolate with respect to lateral movements in the soil masses a predetermined soil volume from the surrounding soil. The correction of the height level is carried out by injecting a moveable material mass beneath the foundation in the isolated soil at such a pressure that the foundation is raised.
Inventors
- 👤 Arne J. Mattson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:55
CPC Classifications
E; E02; E02D; E02D27/00; E02D27/32; E02D27/48; E02D35/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
110 words
In a method of correcting the height level of a concrete foundation or the like which is supported on a loose soil material, the bearing capacity of which has been locally increased under the foundation by means of an oblong casing open at its opposite ends and driven down into the ground in order to isolate with respect to lateral movements in the soil masses a predetermined soil volume from the surrounding soil, the improvement comprising the steps of: providing at least one layer of a material having distribution passages beneath the foundation, and injecting a moveable material mass into said layer at a pressure capable of rising the foundation.
Claim 2
Dependent Claim
110 words
In a method of correcting the height level of a concrete foundation or the like which is supported on a loose soil material, the bearing capacity of which has been locally increased under the foundation by means of an oblong casing open at its opposite ends and driven down into the ground in order to isolate with respect to lateral movements in the soil masses a predetermined soil volume from the surrounding soil, the improvement comprising the steps of: providing at least one layer of a material having distribution passages beneath the foundation, and injecting a moveable material mass into said layer at a pressure capable of rising the foundation.
Claim 3
Dependent Claim
18 words
A method according to claim 1, comprising using as material for said layers a substantially coarse gangue material.
Claim 4
Dependent Claim
37 words
A method according to claim 1, comprising arranging several separated layers above each other, each layer having distribution passages associated therewith and injecting the material mass into one layer at a time, starting with the lowermost layer.
Claim 5
Dependent Claim
17 words
A method according to claim 1, comprising isolating the layers from the casing by a suitable material.
References Cited (Backward Citations)
US1644572A
Cited
US2322855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |