US3246776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silo unloader with wall cleaning means
Assignee: Deere and Co
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Filing: 1964-04-01
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Granted: 1966-04-19
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Expires: 1984-04-01
Abstract
No abstract record available.
Inventors
- 👤 Malvin F Spencer
- 👤 Fickle J Clark
- 👤 Etlar A Henningsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:46
CPC Classifications
A; A01; A01F; A01F25/00; A01F25/16; A01F25/20; A01F25/2009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A SILO UNLOADER FOR USE WITHIN AN UPRIGHT SILO WALL HAVING A SIDE DISCHARGE OPENING COMPRISING: A CENTRALLY LOCATED WALL STRUCTURE DEFINING AN UPRIGHT MATERIAL RECEIVING CHAMBER; A RADIAL AUGER STRUCTURE INCLUDING A HORIZONTAL AUGER EXTENDING FROM THE CHAMBER TO AN OUTER END ADJACENT THE WALL AND ADAPTED TO MOVE MATERIAL FROM THE SURFACE OF THE SILAGE INWARDLY TO THE CHAMBER; A WALL CHIPPER INCLUDING AN UPRIGHT PLATE FIXED TO ROTATE WITH THE AUGER ADJACENT ITS OUTER END AND HAVING A SURFACE FACING THE WALL, CUTTERS PROJECTING FROM THE SURFACE TO EDGES CLOSELY ADJACENT THE WALL, AND FLEXIBLE BRUSH ELEMENTS EXTENDING FROM THE SURFACE AND CONTACTING THE WALL; AND CONVEYOR MEANS EXTENDING FROM THE CHAMBER TO THE SIDE DISCHARGE OPENING.
Claim 2
Dependent Claim
120 words
A SILO UNLOADER FOR USE WITHIN AN UPRIGHT SILO WALL HAVING A SIDE DISCHARGE OPENING COMPRISING: A CENTRALLY LOCATED WALL STRUCTURE DEFINING AN UPRIGHT MATERIAL RECEIVING CHAMBER; A RADIAL AUGER STRUCTURE INCLUDING A HORIZONTAL AUGER EXTENDING FROM THE CHAMBER TO AN OUTER END ADJACENT THE WALL AND ADAPTED TO MOVE MATERIAL FROM THE SURFACE OF THE SILAGE INWARDLY TO THE CHAMBER; A WALL CHIPPER INCLUDING AN UPRIGHT PLATE FIXED TO ROTATE WITH THE AUGER ADJACENT ITS OUTER END AND HAVING A SURFACE FACING THE WALL, CUTTERS PROJECTING FROM THE SURFACE TO EDGES CLOSELY ADJACENT THE WALL, AND FLEXIBLE BRUSH ELEMENTS EXTENDING FROM THE SURFACE AND CONTACTING THE WALL; AND CONVEYOR MEANS EXTENDING FROM THE CHAMBER TO THE SIDE DISCHARGE 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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |