US3926267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for driving holes in the ground
Assignee: Individual
•
Filing: 1974-07-31
•
Granted: 1975-12-16
•
Expires: 1994-07-31
Abstract
Abstract A device for driving holes is provided with a crankshaft on which accommodated on respective crankspins with a provision for free rotation, is a cone-shaped member at the front end followed by a succession of tapered rollers which are the transverse parts of a conically shaped body. The apparatus is provided with means ensuring its longitudinal travel in the hole. When the crankshaft is rotated, the cone-shaped member and tapered rollers start rolling over the wall of the hole, gradually enlarging the latter and compacting the wall by laterally displacing the ground. The device is capable of driving holes with a diameter as large as 800 mm in any compactable ground thus, producing firm and stable walls.
Inventors
- 👤 Valentin Konstant Svirschevsky
- 👤 Anatoly Alexandrovich Orekhov
- 👤 Boris Grigorievich Tregubov
- 👤 Andrei Alexeevich Trofimuk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:13
CPC Classifications
E; E21; E21B; E21B4/00; E21B4/18; E21B7/00; E21B7/24; E21B7/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
99 words
A device for rolling holes in the ground and said device having a longitudinal axis comprising: a crankshaft; substantially tapered rollers having a smooth surface, said tapered rollers being essentially the transverse parts of a conically-shaped body and mounted in succession on said crankshaft; said tapered rollers having axes, the axes of the tapered rollers being arranged at an angle to the longitudinal axis of the device and disposed in planes essentially parallel to the longitudinal axis; and a drive having a casing, said drive imparting rotary motion to the crankshaft and axially displacing the device in the hole.
Claim 2
Independent Claim
99 words
A device for rolling holes in the ground and said device having a longitudinal axis comprising: a crankshaft; substantially tapered rollers having a smooth surface, said tapered rollers being essentially the transverse parts of a conically-shaped body and mounted in succession on said crankshaft; said tapered rollers having axes, the axes of the tapered rollers being arranged at an angle to the longitudinal axis of the device and disposed in planes essentially parallel to the longitudinal axis; and a drive having a casing, said drive imparting rotary motion to the crankshaft and axially displacing the device in the hole.
Claim 3
Dependent Claim
31 words
The device as claimed in claim 1, wherein the axes of said tapered rollers are disposed spatially and pairwise in opposite phases with respect to the longitudinal axis of the device.
Claim 4
Dependent Claim
94 words
The device as claimed in claim 1, wherein the crankshaft is defined by two concentrically disposed inner and outer sections; the tapered rollers being arrAnged on both concentric sections so that the axes of the tapered rollers of one of the concentric sections are disposed at an angle to the longitudinal axis of the device, said angle being opposite to the angle at which the axes of the tapered rollers of the other concentric section are disposed; and the outer concentric section of the shaft being rigidly attached to the casing of the drive.
Claim 5
Dependent Claim
63 words
The device as claimed in claim 1 wherein the drive of crankshaft is movably linked up with substantially cylindrical rollers having axes, the axes of the substantially cylindrical rollers being disposed at an angle to the longitudinal axis of the device in different planes which are substantially parallel to said axis; and said substantially cylindrical rollers being movably linked up with the crankshaft.
Claim 6
Dependent Claim
25 words
The device as claimed in claim 1 wherein the surface of tapered rollers in contact with the hole wall is covered with a resilient material.
Claim 7
Dependent Claim
41 words
The device as claimed in claim 1, wherein the drive is a reversible drive disposed in close proximity to the device is provided with means of securing the casing to the hole wall so as to prevent the casing from rotation.
Claim 8
Dependent Claim
29 words
The device as claimed in claim 6, wherein a means of securing the casing of the drive so as to prevent rotation are projections disposed radially on the casing.
Claim 9
Dependent Claim
28 words
The device as claimed in claim 6 wherein the means of securing the casing of drive so as to prevent rotation are wheels disposed radially on the casing.
References Cited (Backward Citations)
US1179342A
Cited
US1136135A
Cited
US1805087A
Cited
US1772491A
Cited
US2124414A
Cited
US2919121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |