US3894400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material removal device
Assignee: LEE TURZILLO CONTRACTING Co
•
Filing: 1974-01-28
•
Granted: 1975-07-15
•
Expires: 1994-01-28
Abstract
Abstract Device consists of a section of tubing or pipe which may be mounted on the leads or other suitable support structure of an auger ring assembly and positioned on the ground over the area in which a hole is to be drilled. When thus so positioned, the auger is in axial alignment with the pipe for insertion of the auger through the pipe and drilling into the ground. The pipe is of a length suitable to permit the spoil or other material resulting from the drilling operation to be carried upwardly by the spiral flights on the auger within the pipe a sufficient distance above ground for discharge and deposit in spaced relation from the hole. A hopper adjacent the upper end of the pipe collects the spoil spilling therefrom for discharge down a chute attached thereto. The angle of inclination of the chute may be adjusted to vary the angle of discharge and spacing between the auger and discharge end of the chute, and both the hopper and chute may be rotatable relative to the pipe to permit the spoil therefrom to be deposited at different locations.
Inventors
- 👤 Don Stillwell
- 👤 Sherrel Strahle
- 👤 Art Hightower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:47
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/003; E21B7/005
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
188 words
A material removal device for use in removing the spoil from the flights of an auger and the like during drilling comprising a pipe having an inner diameter slightly larger than the outer diameter of the auger flights, means for positioning said pipe in axial alignment with the auger with the lower end of said pipe in engagement with an earth situs, said pipe enclosing a portion of the auger during drilling to permit the spoil from the drilling operation to be carried upwardly by the auger flights within said pipe to the upper end thereof, a hopper adjacent the upper end of said pipe for receiving the spoil spilling from the upper end of said pipe, and means for conveying the spoil spilling from the upper end of said pipe comprising a discharge chute attached to said hopper, said hopper having an opening in communication with said discharge chute, and means mounting said hopper and discharge chute for rotation relative to said pipe to permit the spoil to be discharged from said hopper in different directions for deposit at different locations without having to rotate said pipe.
Claim 2
Dependent Claim
188 words
A material removal device for use in removing the spoil from the flights of an auger and the like during drilling comprising a pipe having an inner diameter slightly larger than the outer diameter of the auger flights, means for positioning said pipe in axial alignment with the auger with the lower end of said pipe in engagement with an earth situs, said pipe enclosing a portion of the auger during drilling to permit the spoil from the drilling operation to be carried upwardly by the auger flights within said pipe to the upper end thereof, a hopper adjacent the upper end of said pipe for receiving the spoil spilling from the upper end of said pipe, and means for conveying the spoil spilling from the upper end of said pipe comprising a discharge chute attached to said hopper, said hopper having an opening in communication with said discharge chute, and means mounting said hopper and discharge chute for rotation relative to said pipe to permit the spoil to be discharged from said hopper in different directions for deposit at different locations without having to rotate said pipe.
Claim 3
Dependent Claim
75 words
The device of claim 1 wherein said means mounting said hopper and discharge chute for rotation relative to said pipe comprises a flange on the outer wall of said pipe spaced from the upper end thereof, said hopper being telescopingly received over the upper end of said pipe with the lower end of said hopper resting on said flange and the upper end of said hopper extending upwardly beyond the upper end of said pipe.
Claim 4
Dependent Claim
44 words
The device of claim 2 further comprising a freely slidable ring surrounding said pipe below said flange, and an adjustable support member including means providing a pivotal connection between said ring and discharge chute for adjusting the angle of inclination of said discharge chute.
Claim 5
Dependent Claim
38 words
The device of claim 1 further comprising means for varying the angle of inclination of said discharge chute to vary the slope of said discharge chute and spacing between said pipe and discharge end of said discharge chute.
Claim 6
Dependent Claim
171 words
A material removal device for use in removing the spoil from the flights of an auger and the like during drilling of a hole in an earth situs comprising an auger having auger flights thereon, a pipe having an inner diameter slightly larger than the outer diameter of said auger flights, means for positioning said pipe in axial alignment with said auger and maintaining the lower end of said pipe in engagement with the upper surface of the earth situs, means mounting said auger for axial and rotational movement relative to said pipe for drilling a hole in the earth situs while the lower end of said pipe is maintained in engagement with the upper surface of the earth situs, said pipe surrounding and enclosing a portion of said auger during drilling to permit the spoil from the drilling operation to be carried upwardly by the auger flights within said pipe to the upper end thereof, and means for conveying away the spoil spilling from the upper end of said pipe.
Claim 7
Dependent Claim
171 words
A material removal device for use in removing the spoil from the flights of an auger and the like during drilling of a hole in an earth situs comprising an auger having auger flights thereon, a pipe having an inner diameter slightly larger than the outer diameter of said auger flights, means for positioning said pipe in axial alignment with said auger and maintaining the lower end of said pipe in engagement with the upper surface of the earth situs, means mounting said auger for axial and rotational movement relative to said pipe for drilling a hole in the earth situs while the lower end of said pipe is maintained in engagement with the upper surface of the earth situs, said pipe surrounding and enclosing a portion of said auger during drilling to permit the spoil from the drilling operation to be carried upwardly by the auger flights within said pipe to the upper end thereof, and means for conveying away the spoil spilling from the upper end of said pipe.
Claim 8
Dependent Claim
34 words
The device of claim 5 further comprising a support member for said pipe, and means mounting said support member for movement from one location to another to position said pipe at different hole locations.
Claim 9
Dependent Claim
38 words
The device of claim 6 wherein said support member also supports said auger to maintain said Pipe in proper axial alignment with said auger and facilitate movement of said device and auger from one hole location to another.
Claim 10
Dependent Claim
61 words
The device of claim 5 further comprising a hopper adjacent the upper end of said pipe for receiving the spoil spilling from the upper end of said pipe, said means for conveying the spoil spilling from the upper end of said pipe comprising a discharge chute attached to said hopper, said hopper having an opening in communication with said discharge chute.
Claim 11
Dependent Claim
23 words
The device of claim 5 wherein the hole drilled by said auger has a diameter smaller than the outer diameter of said pipe.
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) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |