Patent US4132287A successfully refreshed from Google Patents.
US4136992A
Expired / Lapsed
US
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Method of stabilizing ground of low bearing capacity, and a stabilizing unit for carrying out the method
Assignee: Individual
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Filing: 1978-02-07
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Granted: 1979-01-30
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Expires: 1998-02-07
Abstract
Abstract In a method of stabilizing, by means of a stabilizing machine adapted to inject a stabilizing agent into the ground, a ground surface whose bearing capacity is so low that it is unable to support the stabilizing machine or can only support said machine with difficulty, there is used a stabilizing unit supported by the drive or transport unit of said machine in front thereof as seen in the drive direction. The stabilizing unit has a width which exceeds the width of said drive or transport unit. The stabilizing agent is introduced into the ground to a depth of such magnitude, and the machine is driven at such a speed that the ground is sufficiently stabilized by said stabilizing agent introduced thereinto to support the whole of the stabilizing machine. The stabilizing unit may be partially supported by lifting and/or carrying arms of the drive unit and partially by separate ground-engaging tracks or wheels arranged between said unit and said drive unit. The means for introducing stabilizing agent into the ground may be provided with support surfaces arranged to engage the surface of the ground so as to assist in supporting the weight of said unit. The invention also concerns a stabilizing unit for carrying out the method and having means for connecting it to a tractor or a similar vehicle so that it is supported in front thereof.
Inventors
- 👤 Gunnar Olsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:44
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/12; E02D3/126; E01; E01C; E01C21/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
124 words
A method of in situ stabilizing a ground surface whose bearing capacity is so low that it is unable to satisfactorily support a stabilizing machine used to stabilize the surface, the stabilizing machine being adapted to introduce a stabilizing agent into the ground, the method comprising the steps of: using a stabilizing unit carried in front of a drive unit of the stabilizing machine to stabilize the ground to a width exceeding the width of the drive unit of the stabilizing machine; and introducing the stabilizing agent into the ground to a depth of such magnitude, and driving the machine at such a speed that the ground is sufficiently stabilized by said stabilizing agent introduced thereinto to support the whole of the stabilizing machine.
Claim 2
Independent Claim
124 words
A method of in situ stabilizing a ground surface whose bearing capacity is so low that it is unable to satisfactorily support a stabilizing machine used to stabilize the surface, the stabilizing machine being adapted to introduce a stabilizing agent into the ground, the method comprising the steps of: using a stabilizing unit carried in front of a drive unit of the stabilizing machine to stabilize the ground to a width exceeding the width of the drive unit of the stabilizing machine; and introducing the stabilizing agent into the ground to a depth of such magnitude, and driving the machine at such a speed that the ground is sufficiently stabilized by said stabilizing agent introduced thereinto to support the whole of the stabilizing machine.
Claim 3
Dependent Claim
21 words
A method according to claim 1 wherein the drive unit has carry arms for at least partially supporting the stabilizing unit.
Claim 4
Dependent Claim
24 words
A method according to claim 2 using separate ground-engaging means arranged between said stabilizing unit and said drive unit for supporting the stabilizing unit.
Claim 5
Dependent Claim
50 words
A method according to claim 2, wherein the stabilizing unit includes means carried by said stabilizing unit for introducing stabilizing agent into the ground, said introducing means having support surfaces arranged to engage the surface of the ground so as to assist in supporting the weight of said stabilizing unit.
Claim 6
Dependent Claim
135 words
An in situ ground stabilizing unit for use with a drive unit having support and lifting arms comprising: a plurality of stabilizing devices adapted to be inserted into the ground to inject a stabilizing agent thereinto; and a frame for supporting the stabilizing devices and having a rear part, as seen in the direction of movement of said stabilizing unit, said rear part having means for connecting said part to the supporting and lifting arms of the drive unit, whereby when the stabilizing unit is connected to said drive unit said stabilizing unit is arranged to be supported at least partially by said drive unit, and has a greater width than the width of said drive unit so that the stabilizing agent is injected into an area wider than the width of said drive unit.
Claim 7
Dependent Claim
135 words
An in situ ground stabilizing unit for use with a drive unit having support and lifting arms comprising: a plurality of stabilizing devices adapted to be inserted into the ground to inject a stabilizing agent thereinto; and a frame for supporting the stabilizing devices and having a rear part, as seen in the direction of movement of said stabilizing unit, said rear part having means for connecting said part to the supporting and lifting arms of the drive unit, whereby when the stabilizing unit is connected to said drive unit said stabilizing unit is arranged to be supported at least partially by said drive unit, and has a greater width than the width of said drive unit so that the stabilizing agent is injected into an area wider than the width of said drive unit.
Claim 8
Dependent Claim
34 words
A stabilizing unit according to claim 5 wherein the rear part is joined with a member carrying means for engaging the ground, said member being positioned between the stabilizing devices and the drive unit.
Claim 9
Dependent Claim
14 words
A stabilizing unit according to claim 6 wherein said member comprises a tracked support.
Claim 10
Dependent Claim
14 words
A stabilizing unit according to claim 6 wherein said member comprises a wheeled support.
Claim 11
Dependent Claim
39 words
A stabilizing unit according to claim 5, wherein said stabilizing devices have support surfaces arranged to engage the surface of the ground and at least partially support said stabilizing unit when said stabilizing devices are inserted into the ground.
Claim 12
Dependent Claim
38 words
A stabilizing unit according to claim 6 wherein said stabilizing devices have support surfaces arranged to engage the surface of the ground and at least partially support said unit when said stabilizing devices are inserted into the ground.
References Cited (Backward Citations)
US1399681A
Cited
US2196211A
Cited
US2387764A
Cited
US2649061A
Cited
US2649060A
Cited
US2995457A
Cited
US3091999A
Cited
US3546886A
Cited
US3478656A
Cited
US3596577A
Cited
US4075853A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |