US4056937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of consolidating soils
Assignee: Kyokado Engineering Co Ltd
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Filing: 1976-01-08
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Granted: 1977-11-08
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Expires: 1996-01-08
Abstract
Abstract In a method of consolidating soils by injecting a hardner thereinto, a mixture of an aqueous solution of water glass and acidic reactant is employed as the hardener, the aqueous solution being prepared to be within the range of from weak acidity to weak alkalinity in pH value, to prevent the occurrence of pollution such as soil pollution or subterranean water polutions.
Inventors
- 👤 Manao Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:37
CPC Classifications
B; B09; B09C; B09C1/00; B09C1/08; C; C09; C09K; C09K17/00; C09K17/02; C09K17/12; C09K17/40; C09K17/42; C09K17/46
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
153 words
In a method of solidifying a soil or making soil water-tight by injecting a hardener thereinto, in which a mixture of water glass and acidic reacting agent is employed as said hardener, and said solution is blended so that the pH value thereof is within a range of from weak acidity of about fine to weak alkalinity of about 9, thereby to reduce the pollution of soil or subterranean water, characterized in that a liquid A which is a solution of one or two materials selected from the group consisting of a gel control agent and clay, and a liquid B which is a mixture of water glass and acidic reacting agent are employed as said hardener, and said liquids A and B are joined together and are injected into said soil, said liquid B being blended so that the pH thereof being maintained within a range of from acidity to weak alkalinity.
Claim 2
Dependent Claim
153 words
In a method of solidifying a soil or making soil water-tight by injecting a hardener thereinto, in which a mixture of water glass and acidic reacting agent is employed as said hardener, and said solution is blended so that the pH value thereof is within a range of from weak acidity of about fine to weak alkalinity of about 9, thereby to reduce the pollution of soil or subterranean water, characterized in that a liquid A which is a solution of one or two materials selected from the group consisting of a gel control agent and clay, and a liquid B which is a mixture of water glass and acidic reacting agent are employed as said hardener, and said liquids A and B are joined together and are injected into said soil, said liquid B being blended so that the pH thereof being maintained within a range of from acidity to weak alkalinity.
Claim 3
Dependent Claim
39 words
A method as claimed in claim 1, in which said liquid B contains one or two materials selected from the group consisting of gel control agent and clay, in addition to said water glass and said acidic reacting agent.
Claim 4
Dependent Claim
37 words
A method as claimed in claim 1, in which during the injection of said liquids A and B, the feeding of said liquid A is suspended so that only said liquid B is injected into said soil.
Claim 5
Dependent Claim
30 words
A method as claimed in claim 1, in which at least one of said liquids A and B is injected under high pressure in the form of a jet stream.
Claim 6
Dependent Claim
152 words
In a method of solidifying a soil or making soil watertight by injecting a hardener thereinto, in which a mixture of water glass and acidic reacting agent is employed as said hardener, and said solution is blended so that the pH value thereof is within a range of from weak acidity to weak alkalinity thereby to reduce the pollution of soil of subterranean water, characterized in that a liquid A which is a solution of acidic reacting agent, and a liquid B which is a solution of water glass are employed as said hardener, and said liquids A and B are joined together and are injected into said soil, each of said liquids A and B being blended so that the pH value of the liquid obtained by combining said liquids A and B is maintained within a range of from weak acidity of about five to weak alkalinity of about 9.
Claim 7
Dependent Claim
152 words
In a method of solidifying a soil or making soil watertight by injecting a hardener thereinto, in which a mixture of water glass and acidic reacting agent is employed as said hardener, and said solution is blended so that the pH value thereof is within a range of from weak acidity to weak alkalinity thereby to reduce the pollution of soil of subterranean water, characterized in that a liquid A which is a solution of acidic reacting agent, and a liquid B which is a solution of water glass are employed as said hardener, and said liquids A and B are joined together and are injected into said soil, each of said liquids A and B being blended so that the pH value of the liquid obtained by combining said liquids A and B is maintained within a range of from weak acidity of about five to weak alkalinity of about 9.
Claim 8
Dependent Claim
35 words
A method as claimed in claim 5, in which said liquid A contains one or two materials selected from the group consisting of gel control agent and clay, in addition to said acidic reacting agent.
Claim 9
Dependent Claim
37 words
A method as claimed in claim 5, in which said liquid B contains one or more materials selected from the group consisting of acidic reacting agent, gel control agent and clay, in addition to said water glass.
Claim 10
Dependent Claim
61 words
A method as claimed in claim 7, in which, said liquid B is blended so that the pH value thereof is maintained with a range of from weak acidity to weak alkalinity, and during the injection of said liquids A and B, the feeding of said liquid A is suspended so that only said liquid B is injected in said soil.
Claim 11
Dependent Claim
30 words
A method as claimed in claim 5, in which at least one of said liquids A and B is injected under high pressure in the form of a jet stream.
Claim 12
Dependent Claim
153 words
In a method of solidifying a soil or making soil watertight by injecting a hardener thereinto, in which a mixture of water glass and acidic reacting agent is employed as said hardener, and said solution is blended so that the pH value thereof is within a range of from weak acidity to weak alkalinity, characterized in that a liquid A which is a water glass solution, and a liquid B which is a mixture of water glass and acidic reacting agent are employed as said hardener, said liquids A and B are joined together and are injected into said soil, each of said liquids A and B being blended so that the pH value of the liquid obtained by combining said liquids A and B is maintained within a range of from weak acidity of about 5 to weak alkalinity of about 9, thereby to reduce the pollution of soil or subterranean water.
Claim 13
Dependent Claim
153 words
In a method of solidifying a soil or making soil watertight by injecting a hardener thereinto, in which a mixture of water glass and acidic reacting agent is employed as said hardener, and said solution is blended so that the pH value thereof is within a range of from weak acidity to weak alkalinity, characterized in that a liquid A which is a water glass solution, and a liquid B which is a mixture of water glass and acidic reacting agent are employed as said hardener, said liquids A and B are joined together and are injected into said soil, each of said liquids A and B being blended so that the pH value of the liquid obtained by combining said liquids A and B is maintained within a range of from weak acidity of about 5 to weak alkalinity of about 9, thereby to reduce the pollution of soil or subterranean water.
Claim 14
Dependent Claim
37 words
A method as claimed in claim 10, in which said liquid A contains one or more materials selected from the group consisting of acidic reacting agent, gel control agent and clay, in addition to said water glass.
Claim 15
Dependent Claim
39 words
A method as claimed in claim 10, in which said liquid B contains one or two materials selected from the group consisting of gel control agent and clay, in addition to said water glass and said acidic reacting agent.
Claim 16
Dependent Claim
61 words
A method as claimed in claim 10, in which, said liquid B is blended so that the pH value thereof is maintained within a range of from weak acidity to weak alkalinity, and during the injection if said liquids A and B, the feeding of said liquid A is suspended so that only said liquid B is injected into said soil.
Claim 17
Dependent Claim
30 words
A method as claimed in claim 10, in which at least one of said liquids A and B is injected under high pressure in the form of a jet stream.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |