US3075658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silo unloader
Assignee: Deere and Co
•
Filing: 1960-02-15
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Granted: 1963-01-29
•
Expires: 1980-02-15
Abstract
No abstract record available.
Inventors
- 👤 Leonard B Neighbour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:06
CPC Classifications
A; A01; A01F; A01F25/00; A01F25/16; A01F25/20; B; B65; B65G; B65G65/00; B65G2814/00; B65G2814/02; B65G2814/0217; B65G2814/0223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
222 words
A SILO UNLOADER FOR USE IN A SILO HAVING A DISCHARGE OPENING IN ONE SIDE THEREOF COMPRISING: A MAIN FRAME SUPPORTED IN THE SILO; A VERTICAL DRIVE SHAFT JOURNALED ON THE FRAME SUBSTANTIALLY AT THE CENTER OF THE SILO; A POWER UNIT ON THE FRAME FOR ROTATING THE SHAFT; A LATERALLY DISPOSED SWEEP AUGER HAVING ONE END ADJACENT THE SHAFT AND THE OTHER END ADJACENT THE SILO WALL; A DRIVE TRANSMISSION ON THE SHAFT AND AUGER EFFECTING ROTATION OF THE AUGER ABOUT ITS AXIS TO CAUSE MOVEMENT OF THE MATERIAL IN THE SILO RADIALLY INWARDLY AND TO EFFECT MOVEMENT OF THE AUGER LATERALLY AND ANGULARLY RELATIVE TO THE VERTICAL DRIVE SHAFT; A LATERALLY DISPOSED RADIAL AUGER BENEATH THE SWEEP AUGER HAVING AN OUTER END ADJACENT THE SIDE OF THE SILO HAVING THE DISCHARGE OPENING AND EFFECTIVE UPON ROTATION TO CUT A TRENCH BENEATH THE SURFACE OF THE MATERIAL; AN IMPELLER ON THE OUTER END OF THE LATTER AUGER FOR RECEIVING MATERIAL THEREFROM; A DRIVE TRANSMISSION ON THE VERTICAL SHAFT, DRIVING THE AUGER AND IMPELLER FOR EFFECTING MOVEMENT OF MATERIAL RADIALLY OUTWARDLY TO THE IMPELLER AND TO IMPEL THE MATERIAL UPWARDLY; AND MATERIAL INTERCEPTING MEANS POSITIONED IN THE OPENING ABOVE THE PLANE OF THE SWEEP AUGER AND EXTENDING INTO THE SILO TO INTERCEPT THE IMPELLED MATERIAL FOR DIRECTING IT OUTWARDLY THROUGH THE OPENING.
Claim 2
Dependent Claim
222 words
A SILO UNLOADER FOR USE IN A SILO HAVING A DISCHARGE OPENING IN ONE SIDE THEREOF COMPRISING: A MAIN FRAME SUPPORTED IN THE SILO; A VERTICAL DRIVE SHAFT JOURNALED ON THE FRAME SUBSTANTIALLY AT THE CENTER OF THE SILO; A POWER UNIT ON THE FRAME FOR ROTATING THE SHAFT; A LATERALLY DISPOSED SWEEP AUGER HAVING ONE END ADJACENT THE SHAFT AND THE OTHER END ADJACENT THE SILO WALL; A DRIVE TRANSMISSION ON THE SHAFT AND AUGER EFFECTING ROTATION OF THE AUGER ABOUT ITS AXIS TO CAUSE MOVEMENT OF THE MATERIAL IN THE SILO RADIALLY INWARDLY AND TO EFFECT MOVEMENT OF THE AUGER LATERALLY AND ANGULARLY RELATIVE TO THE VERTICAL DRIVE SHAFT; A LATERALLY DISPOSED RADIAL AUGER BENEATH THE SWEEP AUGER HAVING AN OUTER END ADJACENT THE SIDE OF THE SILO HAVING THE DISCHARGE OPENING AND EFFECTIVE UPON ROTATION TO CUT A TRENCH BENEATH THE SURFACE OF THE MATERIAL; AN IMPELLER ON THE OUTER END OF THE LATTER AUGER FOR RECEIVING MATERIAL THEREFROM; A DRIVE TRANSMISSION ON THE VERTICAL SHAFT, DRIVING THE AUGER AND IMPELLER FOR EFFECTING MOVEMENT OF MATERIAL RADIALLY OUTWARDLY TO THE IMPELLER AND TO IMPEL THE MATERIAL UPWARDLY; AND MATERIAL INTERCEPTING MEANS POSITIONED IN THE OPENING ABOVE THE PLANE OF THE SWEEP AUGER AND EXTENDING INTO THE SILO TO INTERCEPT THE IMPELLED MATERIAL FOR DIRECTING IT OUTWARDLY THROUGH THE OPENING.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |