Patent NL6409093A successfully refreshed from Google Patents.
US3747697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-loading drill rig hopper
Assignee: Individual
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Filing: 1971-08-17
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Granted: 1973-07-24
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Expires: 1991-08-17
Abstract
Abstract A heavy-duty container having sides and a bottom so disposed as to efficiently receive earthen material, said material extracted through means of a standard drilling tool capable of retraction directly within the container for rapid, safe, loading of material.
Inventors
- 👤 W Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:16
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/003; E21B7/005; E02; E02F; E02F7/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
242 words
Earth removal apparatus comprising: a container adapted to be positioned above an area to be excavated and having a bottom and side enclosure adapted to contain excavated material and having an aperture through said bottom, an auger shaft adapted to be driven in rotation and having a substantially vertical axis of rotation and movable vertically up and down along said axis, an earth auger mounted on said shaft and positioned so that it can be protruded and retracted through said aperture and be positioned either above or below said aperture, shroud means within said container surrounding said axis and positionable so that its lower end partitions said aperture from the interior part of container outside of said shroud and also surrounds said auger when the auger is within the lower part of said container, said auger being rotatable at a first speed of rotation adapted for drilling and raising earthen material upward into said container through said aperture, and also rotatable at a second speed of rotation which flings earthen material outward from the auger by centrifugal force, the provision and arrangement being such that when the auger is positioned beneath the aperture it can drill through and fill with earthen material and when the auger thus filled is raised above the shroud means within the container the application of said second speed of rotation causes the earthen material contained by the auger to be spun-off toward the side of the container.
Claim 2
Dependent Claim
242 words
Earth removal apparatus comprising: a container adapted to be positioned above an area to be excavated and having a bottom and side enclosure adapted to contain excavated material and having an aperture through said bottom, an auger shaft adapted to be driven in rotation and having a substantially vertical axis of rotation and movable vertically up and down along said axis, an earth auger mounted on said shaft and positioned so that it can be protruded and retracted through said aperture and be positioned either above or below said aperture, shroud means within said container surrounding said axis and positionable so that its lower end partitions said aperture from the interior part of container outside of said shroud and also surrounds said auger when the auger is within the lower part of said container, said auger being rotatable at a first speed of rotation adapted for drilling and raising earthen material upward into said container through said aperture, and also rotatable at a second speed of rotation which flings earthen material outward from the auger by centrifugal force, the provision and arrangement being such that when the auger is positioned beneath the aperture it can drill through and fill with earthen material and when the auger thus filled is raised above the shroud means within the container the application of said second speed of rotation causes the earthen material contained by the auger to be spun-off toward the side of the container.
Claim 3
Dependent Claim
25 words
Apparatus according to claim 1 in which the container is provided with a closable outlet which when opened, permits discharge of material from the container.
Claim 4
Dependent Claim
44 words
Apparatus according to claim 1 in which, when the auger is raised to a position above that in which the said second speed of rotation is applied, the shroud means is lifted to expose the aperture to the earthen material deposited in the container.
Claim 5
Dependent Claim
34 words
Apparatus according to claim 1 in which at least part of the side of the container slants toward the aperture to facilitate dumping of material within the container when the shroud means is lifted.
Claim 6
Dependent Claim
27 words
Apparatus according to claim 1 in which the shroud means comprises a cylindrical member the lower edge of which is positionable around the periphery of the aperture.
Claim 7
Dependent Claim
45 words
Apparatus according to claim 1 including means attached to said shroud means for lifting it to bring said aperture into communication with an interior part of said container which is outside said shroud, so that material in said container can be emptied through said aperture.
Claim 8
Dependent Claim
47 words
Apparatus according to claim 6 in which said means attached to the shroud means comprises a device freely mounted to said auger shaft and means attached to said shaft operates on said device to raise said shroud means to uncover the aperture when the shaft is raised.
Claim 9
Dependent Claim
219 words
Earth removal apparatus comprising: a container adapted to be positioned above an area to be excavated and having a bed and side enclosure adapted to contain excavated material and having an aperture through said bottom, an auger shaft adapted to be driven in rotation and having a substantially vertical axis of rotation and movable vertically up and down along said axis, an earth auger mounted on said shaft and positioned so that it can be protruded and retracted through said aperture and be positioned either above or below said aperture, said auger being rotatable at a first speed of rotation adapted for drilling and raising earthen material upward into said container through said aperture, and also rotatable at a second speed of rotation which flings earthen material outward from the auger by centrifugal force, the provision and arrangement being such that when the auger is positioned beneath the aperture it can drill through and fill with earthen material and when the auger thus filled is raised above the aperture within the container the application of said second speed of rotation causes the earthen material contained by the auger to be spun-off from the auger, said container having within it a mechanical conveyor means for conveying spun-off material from the region of the auger to another part of the container.
Claim 10
Dependent Claim
219 words
Earth removal apparatus comprising: a container adapted to be positioned above an area to be excavated and having a bed and side enclosure adapted to contain excavated material and having an aperture through said bottom, an auger shaft adapted to be driven in rotation and having a substantially vertical axis of rotation and movable vertically up and down along said axis, an earth auger mounted on said shaft and positioned so that it can be protruded and retracted through said aperture and be positioned either above or below said aperture, said auger being rotatable at a first speed of rotation adapted for drilling and raising earthen material upward into said container through said aperture, and also rotatable at a second speed of rotation which flings earthen material outward from the auger by centrifugal force, the provision and arrangement being such that when the auger is positioned beneath the aperture it can drill through and fill with earthen material and when the auger thus filled is raised above the aperture within the container the application of said second speed of rotation causes the earthen material contained by the auger to be spun-off from the auger, said container having within it a mechanical conveyor means for conveying spun-off material from the region of the auger to another part of the container.
Claim 11
Dependent Claim
44 words
Apparatus according to claim 8 in which said aperture is formed by two mating units fitted together, one of said units containing the periphery of part of said aperture and the other of said units containing the peripheRy of the remainder of said aperture.
Claim 12
Dependent Claim
18 words
Apparatus according to claim 8 in which the mechanical conveyor means comprises an endless belt provided with scoops.
Claim 13
Dependent Claim
14 words
Apparatus according to claim 8 in which said units are detachable from each other.
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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |