Patent US3712067A successfully refreshed from Google Patents.
US3712067A
Expired / Lapsed
US
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Method and an apparatus for compacting a loosely packed layer of earth
Assignee: Tot Aanneming Van Werken Voorheen HJ Nederhorst NV
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Filing: 1971-01-13
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Granted: 1973-01-23
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Expires: 1991-01-13
Abstract
Abstract A method of compacting a loosely packed layer of earth. According to this method a tube is vibrated into the earth, which tube accommodates a closing member at a distance from the underside of the tube which substantially corresponds to the distance from the ground level to the upper side of the layer of earth to be compacted. Earth is received in the tube while this tube is being vibrated into the earth, until this earth within the tube strikes the closing member at the time that the underside of the tube has reached approximately the upper side of the layer of earth to be compacted. Hereupon, in the further course of the tube being vibrated downwardly to the required depth, earth is displaced in the layer of earth to be compacted, whereafter the tube is vibratingly lifted and the earth which has been received in the tube leaves the tube and is left in the ground. An apparatus for carrying out this method consists of a tube within which a closing member is accommodated at the appropriate distance from the underside of the tube. This closing member is pervious to air.
Inventors
- 👤 Weele A Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:03
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/046; E02D3/054
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
183 words
A method for compacting a loosEly packed layer of earth by a tube having a closing member therein at a distance from the lower end of the tube which distance substantially corresponds to the distance from the ground level to the upper side of the layer of earth to be compacted, comprising the steps of: concurrently driving and vibrating the tube into the earth while permitting the tube to receive earth until the level of earth within the tube reaches the closing member and the lower end of the tube concurrently has reached substantially the upper level of the layer of earth to be compacted; then continuously downwardly driving and vibrating the tube into the layer of the earth to be compacted to a predetermined depth for compacting the displacing the earth contained in the layer of earth to be compacted; and subsequently raising said tube while simultaneously vibrating the latter so as to cause the earth in the tube to be ejected therefrom to remain in the ground upon withdrawal of said tube to replace the earth displaced during said compacting step.
Claim 2
Independent Claim
183 words
A method for compacting a loosEly packed layer of earth by a tube having a closing member therein at a distance from the lower end of the tube which distance substantially corresponds to the distance from the ground level to the upper side of the layer of earth to be compacted, comprising the steps of: concurrently driving and vibrating the tube into the earth while permitting the tube to receive earth until the level of earth within the tube reaches the closing member and the lower end of the tube concurrently has reached substantially the upper level of the layer of earth to be compacted; then continuously downwardly driving and vibrating the tube into the layer of the earth to be compacted to a predetermined depth for compacting the displacing the earth contained in the layer of earth to be compacted; and subsequently raising said tube while simultaneously vibrating the latter so as to cause the earth in the tube to be ejected therefrom to remain in the ground upon withdrawal of said tube to replace the earth displaced during said compacting step.
Claim 3
Dependent Claim
59 words
The method according to claim 1, comprising the steps of filling a portion of the tube located above the closing member with a liquid after the tube has been vibrated into the earth to the predetermined depth but prior to said raising of the tube, and passing said liquid through the closing member while the tube is being raised.
Claim 4
Dependent Claim
71 words
The method according to claim 1, further comprising the steps of supplying earth into the upper end of the tube after the tube has been vibrated into the layer of earth to be compacted, but prior to said raising of the tube, and passing the supplied earth through a valve provided in the closing member while raising the tube, so as to permit the supplied earth to remain in the ground.
Claim 5
Independent Claim
61 words
An apparatus for compacting a loosely packed layer of earth comprising a tube; a cutting edge provided at the lower end of said tube for facilitating the driving operation thereof into the layer of earth and a closing member located within said tube at a substantial distance from the lower end of said tube, said closing member being pervious to air.
Claim 6
Independent Claim
61 words
An apparatus for compacting a loosely packed layer of earth comprising a tube; a cutting edge provided at the lower end of said tube for facilitating the driving operation thereof into the layer of earth and a closing member located within said tube at a substantial distance from the lower end of said tube, said closing member being pervious to air.
Claim 7
Dependent Claim
14 words
The apparatus according to claim 4, wherein said closing member is permeable to water.
Claim 8
Dependent Claim
16 words
The apparatus according to claim 4 wherein said closing member is a perforated transverse partition plate.
Claim 9
Dependent Claim
14 words
The apparatus according to claim 4 wherein said closing member comprises a non-return valve.
Claim 10
Dependent Claim
56 words
The apparatus according to claim 4, comprising at least one supply pipe extending along the longitudinal direction of said tube and being connected to the outer wall thereof, said supply pipe having one end mounted adjacent the lower end of said tube and the other end adapted to be connected to a pressure medium supply source.
Claim 11
Dependent Claim
21 words
The apparatus according to claim 8, comprising supply means for feeding a lubricant into the lower end portion of said tube.
Claim 12
Dependent Claim
11 words
The apparatus according to claim 9, wherein said lubricant is bentonite.
Claim 13
Dependent Claim
11 words
The apparatus according to claim 9, wherein said lubricant is water.
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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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |