US3865501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for soil compacting
Assignee: INT TECH HANDELSONDERNEMING EN
•
Filing: 1973-07-09
•
Granted: 1975-02-11
•
Expires: 1993-07-09
Abstract
Abstract Method and device for compacting the soil by means of vibration transmitted to the soil particles through a tube open or closed at its lower end and having at its upper end a vibration source with an adjustable counter-weight, said source being capable of generating vibrations in the longitudinal sense of the tube; around the lower portion of the tube a number of radial plates are rigidly connected, the dimensions of said plates being determined such in relationship with the vibration source, that the frequency of said source is tuned to the own vibration frequency (also called resonancy) of the surrounding soil or of said radial plates in the lower portion of said tube or to a multiple of it; the tube is lowered into the ground only by gravitational force during the operation of the vibration source.
Inventors
- 👤 Joris Kniep
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:44
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/046; E02D3/054
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
76 words
A method for compacting the soil, comprising the steps of: vibrating a tube having radial plates near the lower extreme end portion thereof, the vibrations being generated in the longitudinal sense of said tube; lowering the vibrating tube into the earth surface; and adjusting the frequency and the intensity of the vibrations with respect to the resonancy of said radial plates so that said plates effect transmitting of energy to the ground to effect soil compaction.
Claim 2
Independent Claim
76 words
A method for compacting the soil, comprising the steps of: vibrating a tube having radial plates near the lower extreme end portion thereof, the vibrations being generated in the longitudinal sense of said tube; lowering the vibrating tube into the earth surface; and adjusting the frequency and the intensity of the vibrations with respect to the resonancy of said radial plates so that said plates effect transmitting of energy to the ground to effect soil compaction.
Claim 3
Dependent Claim
36 words
A method according to claim 1 in which the amplitude of the longitudinal vibrations in the tube is adjusted in conformity with the capacity of the ground to take up energy from the vibrating radial plates.
Claim 4
Dependent Claim
38 words
A method according to claim 1 in which the frequency of vibrations in the tube is adjusted so as to obtain a condition in which said frequency is substantially tuned to the resonant frequency of said radial plates.
Claim 5
Dependent Claim
21 words
A method according to claim 1 in which the tube is lowered into the earth surface in a substantial vertical position.
Claim 6
Dependent Claim
37 words
A method according to claim 1 additionally comprising: continuing the vibrating action until an open space is formed around said tube; filling said space with additional ground material and slowly raising the tube whilst maintaining the vibrations.
Claim 7
Dependent Claim
32 words
A method according to claim 1 in which the frequency as well as the intensity of the vibrations are steplessly adjusted to conform with the desired energy emission by the radial plates.
Claim 8
Independent Claim
122 words
A method for compacting the soil, comprising the steps of: vibrating a tube having radial plates at one end, the vibrations being generated in the longitudinal sense of said tube; lowering the vibrating tube into the earth surface; adjusting the frequency and the intensity of the vibrations to a value in which nearly no energy is transmitted to the ground, so as to lower the tube to a predetermined depth without any substantial compacting action; re-adjusting the frequency and the intensity of the vibrations so that the frequency is related to the resonant frequency of said radial plates in order to enable the radial plates to reach a condition in which vibration energy is transmitted to the ground to effect soil compaction.
Claim 9
Independent Claim
122 words
A method for compacting the soil, comprising the steps of: vibrating a tube having radial plates at one end, the vibrations being generated in the longitudinal sense of said tube; lowering the vibrating tube into the earth surface; adjusting the frequency and the intensity of the vibrations to a value in which nearly no energy is transmitted to the ground, so as to lower the tube to a predetermined depth without any substantial compacting action; re-adjusting the frequency and the intensity of the vibrations so that the frequency is related to the resonant frequency of said radial plates in order to enable the radial plates to reach a condition in which vibration energy is transmitted to the ground to effect soil compaction.
Claim 10
Dependent Claim
37 words
A method according to claim 7 in which a liquid is injected into the ground in the zone of the vibrating radial plates for increasing the capacity of the ground to take up energy from said plates.
Claim 11
Independent Claim
111 words
A device for compacting the soil comprising: a tube having a source of vibrations rigidly secured to one extremity of said tube, said source being capable of generating longitudinally directed vibrations in said tube; a number of radial plates being rigidly connected near the opposite extremity of said tube, said plates having a resonant frequency; means co-operating with said vibration source for regulating the frequency of vibration thereof to cause said plates to vibrate substantially at their resonant frequency and apply the energy output to effect soil compacting; a ballast-weight, and means for selectively applying said ballast-weight to said source of vibrations to increase the energy output of said radial plates.
Claim 12
Independent Claim
111 words
A device for compacting the soil comprising: a tube having a source of vibrations rigidly secured to one extremity of said tube, said source being capable of generating longitudinally directed vibrations in said tube; a number of radial plates being rigidly connected near the opposite extremity of said tube, said plates having a resonant frequency; means co-operating with said vibration source for regulating the frequency of vibration thereof to cause said plates to vibrate substantially at their resonant frequency and apply the energy output to effect soil compacting; a ballast-weight, and means for selectively applying said ballast-weight to said source of vibrations to increase the energy output of said radial plates.
Claim 13
Dependent Claim
30 words
A device according to claim 9, in which the dimensions of the radial plates are such that said plates are mainly resonantly tuned to one frequency of said vibration source.
Claim 14
Dependent Claim
27 words
A device according to claim 9 in which the means for regulating the vibration source include means to obtain an adjustment of the amplitude of the vibrations.
Claim 15
Dependent Claim
33 words
A device according to claim 11 in which said means for regulating the vibration source permit a stepless adjustment of the frequency and the amplitude of the vibrations generated in said vibration source.
Claim 16
Dependent Claim
34 words
A device according to claim 9 in which the resonant frequency of the plates is determined such that it corresponds with at least one frequency of the vibration source or with a multiple thereof.
Claim 17
Dependent Claim
44 words
A device according to claim 9 in which the mass of the ballast-weight is at most one seventh of the alternating force of the vibration source and at least one third of the combined weight of said tube, said source and said ballast-weight together.
Claim 18
Independent Claim
141 words
A device for compacting the soil comprising: a tube having a source of vibrations rigidly secured to one extremity of said tube, said source being capable of generating longitudinally directed vibrations in said tube of at least two frequencies; a number of radial plates being rigidly connected near the opposite extremity of said tube, the dimensions of said plates being such that these plates are mainly reasonantly tuned to one of said two frequencies of said vibration source; means co-operating with said vibration source for changing the frequency of said vibration source to one of said two frequencies to cause said plates to vibrate substantially at their resonant frequency and apply the energy output to effect soil compacting; a ballastweight, and means for selectively applying said ballast-weight to said source of vibrations to increase the energy output of said radial plates.
Claim 19
Independent Claim
141 words
A device for compacting the soil comprising: a tube having a source of vibrations rigidly secured to one extremity of said tube, said source being capable of generating longitudinally directed vibrations in said tube of at least two frequencies; a number of radial plates being rigidly connected near the opposite extremity of said tube, the dimensions of said plates being such that these plates are mainly reasonantly tuned to one of said two frequencies of said vibration source; means co-operating with said vibration source for changing the frequency of said vibration source to one of said two frequencies to cause said plates to vibrate substantially at their resonant frequency and apply the energy output to effect soil compacting; a ballastweight, and means for selectively applying said ballast-weight to said source of vibrations to increase the energy output of said radial plates.
Claim 20
Dependent Claim
22 words
A device according to claim 15, in which the radial dimensions of the plates vary in the longitudinal direction of the tube.
Claim 21
Dependent Claim
21 words
A device according to claim 15, in which one plate is arranged in at least three radial planes of the tube.
Claim 22
Dependent Claim
47 words
A device according to claim 15, in which the radial plates havE a thickness of less than 15 mm, and in which the ratio of the dimension of the plates parallel to the tube and the radial dimension of the plates is smaller than 6 : 1.
Claim 23
Dependent Claim
33 words
A device according to claim 15, in which the active surface of all radial plates together is less than 2 m2 per ton vibration generating alternating force emitted by the source of vibrations.
Claim 24
Dependent Claim
32 words
A device according to claim 15 in which the lower extremity of the hollow tube is closed with the exception of at least one nozzle communicating with the interior of said tube.
References Cited (Backward Citations)
US3477237A
Cited
US3344873A
Cited
US3333427A
Cited
US3379263A
Cited
US3479829A
Cited
US3572139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |