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US3716111A
Expired / Lapsed
US
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Method for inducing shear waves in the earth and device therefor
Assignee: IFP Energies nouvelles
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Filing: 1970-08-28
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Granted: 1973-02-13
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Expires: 1990-08-28
Abstract
Abstract Method for inducing shear waves in the earth, comprising a generator producing two equal and opposed forces and means for transmitting said forces horizontally to vertical sections of the ground through the intermediary of springs of different rigidities, whereby said forces become unbalanced and the resultant force is transmitted horizontally to the ground.
Inventors
- 👤 M Lavergne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:08
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/02; G01V1/104; G01V1/108; G01V1/112; G01V1/04; G01V1/047; G01V1/053; Y; Y10; Y10S; Y10S181/00; Y10S181/40; Y10S181/401
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
50 words
A method for transmitting shear waves to the ground comprising generating two equal and opposed forces, adjusting said two forces by applying thereto different multiplying coefficient so as to obtain two opposed and unequal forces, and simultaneously applying the two forces unequal to the ground along a substantially horizontal direction.
Claim 2
Independent Claim
50 words
A method for transmitting shear waves to the ground comprising generating two equal and opposed forces, adjusting said two forces by applying thereto different multiplying coefficient so as to obtain two opposed and unequal forces, and simultaneously applying the two forces unequal to the ground along a substantially horizontal direction.
Claim 3
Independent Claim
50 words
A method for transmitting shear waves to the ground comprising generating two equal and opposed forces, adjusting said two forces by applying thereto different multiplying coefficient so as to obtain two opposed and unequal forces, and simultaneously applying the two forces unequal to the ground along a substantially horizontal direction.
Claim 4
Independent Claim
50 words
A method for transmitting shear waves to the ground comprising generating two equal and opposed forces, adjusting said two forces by applying thereto different multiplying coefficient so as to obtain two opposed and unequal forces, and simultaneously applying the two forces unequal to the ground along a substantially horizontal direction.
Claim 5
Independent Claim
86 words
A device for transmitting shear waves to the ground comprising a generator (G) producing two equal and opposed first and second forces (F1 and F2), means for controlling said forces including means for applying to said first force (F1) a first multiplying coefficient (k1) and to said second force (F2) a second multiplying coefficient (k2), such that first and second opposed and unequal resultant forces (F''1 and F''2) are provided, and means for simultaneously transmitting said resultant forces to the ground along a substantially horizontal direction.
Claim 6
Independent Claim
86 words
A device for transmitting shear waves to the ground comprising a generator (G) producing two equal and opposed first and second forces (F1 and F2), means for controlling said forces including means for applying to said first force (F1) a first multiplying coefficient (k1) and to said second force (F2) a second multiplying coefficient (k2), such that first and second opposed and unequal resultant forces (F''1 and F''2) are provided, and means for simultaneously transmitting said resultant forces to the ground along a substantially horizontal direction.
Claim 7
Dependent Claim
19 words
A device according to claim 2 wherein said means for applying said first coefficient (k1) is a spring (3).
Claim 8
Dependent Claim
19 words
A device according to claim 2 wherein said means for applying said second coefficient (k2) is a spring (5).
Claim 9
Dependent Claim
25 words
A device according to claim 2 wherein the generator (G) comprises essentially a cylinder (1) and a piston (7) movable with respect to each other.
Claim 10
Dependent Claim
41 words
A device according to claim 2 wherein the generator (G) comprises essentially a closed chamber (19) containing a liquid, said chamber provided at one end thereof with a deformable wall (21) and at the other end with a rigid wall (22).
Claim 11
Dependent Claim
23 words
A device according to claim 2 further comprising frictionless connection means arranged between the generator (G) and the ground for supporting the generator.
Claim 12
Dependent Claim
19 words
A device according to claim 7 wherein said connection means consists of elastic means (6) for supporting the generator.
Claim 13
Dependent Claim
19 words
A device according to claim 7 wherein said connection means consists of roller means (10) for supporting the generator.
Claim 14
Dependent Claim
20 words
A device according to claim 7 wherein said connection means consists of a liquid mass (9) for supporting the generator.
Claim 15
Dependent Claim
35 words
A device according to claim 2 wherein the means for transmitting each resultant force (F''1, F''2) to the ground consists of a pulsing plate (2, 4) arranged on a substantially vertical wall of the ground.
Claim 16
Dependent Claim
32 words
A device according to claim 2 wherein the means for transmitting each force (F''1, F''2) to the ground consists of a pulsing plate arranged on a substantially vertical stop member (13, 14).
Claim 17
Dependent Claim
28 words
A device according to claim 12 wherein each stop member (13, 14) is integral with a pile (16, 18) imbedded in the ground, in a substantially vertical direction.
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |