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US3282446A
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Unloading mechanism for silos
Assignee: LAIDIG SILO UNLOADERS Inc
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Filing: 1964-10-13
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Granted: 1966-11-01
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Expires: 1984-10-13
Abstract
No abstract record available.
Inventors
- 👤 Jonathan J Laidig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:58
CPC Classifications
A; A01; A01F; A01F25/00; A01F25/16; A01F25/20; A01F25/2018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A SILO HAVING A FLOOR WITH AN AXIAL OPENING AND HAVING AN UPRIGHT CYLINDRICAL WALL, UNLOADER MEANS COMPRISING: A RADIAL SWEEP ARM ADJACENT THE FLOOR; MEANS MOUNTING SAID ARM FOR ROTATION ABOUT THE AXIS OF THE SILO; DRIVE MEANS FOR ROTATING THE ARM; A DRIVEN AUGER CONVEYOR ON SAID ARM FOR MOVING SILAGE TOWARD THE AXIAL OPENING, SAID CONVEYOR HAVING A SHAFT AND A HELICAL FLIGHT ON THE SHAFT; AND CUTTING MEANS COMPRISING A PLURALITY OF BLADES WHICH ARE MOUNTED ON THE PERIPHERY OF THE FLIGHT AND EXTEND RADIALLY BEYOND THE MARGIN OF THE FLIGHT, SAID BLADES
Claim 2
Dependent Claim
98 words
IN A SILO HAVING A FLOOR WITH AN AXIAL OPENING AND HAVING AN UPRIGHT CYLINDRICAL WALL, UNLOADER MEANS COMPRISING: A RADIAL SWEEP ARM ADJACENT THE FLOOR; MEANS MOUNTING SAID ARM FOR ROTATION ABOUT THE AXIS OF THE SILO; DRIVE MEANS FOR ROTATING THE ARM; A DRIVEN AUGER CONVEYOR ON SAID ARM FOR MOVING SILAGE TOWARD THE AXIAL OPENING, SAID CONVEYOR HAVING A SHAFT AND A HELICAL FLIGHT ON THE SHAFT; AND CUTTING MEANS COMPRISING A PLURALITY OF BLADES WHICH ARE MOUNTED ON THE PERIPHERY OF THE FLIGHT AND EXTEND RADIALLY BEYOND THE MARGIN OF THE FLIGHT, SAID BLADES
References Cited (Backward Citations)
US2497295A
Cited
US3121501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |