US3358856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silo unloading device
Assignee: Nils Weibull AB
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Filing: 1966-04-25
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Granted: 1967-12-19
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Expires: 1986-04-25
Abstract
No abstract record available.
Inventors
- 👤 Weibull Claes Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:24
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/36; B65G65/365
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A SILO FOR BULK STORAGE OF VAULT-FORMING MATERIAL COMPRISING A ROOF, FLOOR AND SIDE WALLS FORMING A CYLINDRICAL STORAGE SPACE FOR SAID MATERIAL, A HOLLOW CYLINDRICAL COLUMN SECURED TO SAID FLOOR, EXTENDING AXIALLY IN SAID CYLINDRICAL STORAGE SPACE AND TERMINATING BELOW SAID ROOF; A POWER-DRIVEN BEAM JOURNALED ON SAID COLUMN AND EXTENDING RADIALLY THEREFROM SUBSTANTIALLY TO THE INNER PERIPHERY OF SAID CYLINDRICAL STORAGE SPACE FOR ROTARY MOVEMENT ABOUT THE VERTICAL AXIS OF SAID COLUMN; CONVEYOR MEANS EXTENDING BENEATH SAID BEAM AND SUSPENDED THEREFROM FOR CONVEYING MATERIAL RADIALLY TOWARD SAID COLUMN, SAID CONVEYOR MEANS AND BEAM BEING ROTATABLE AS A UNIT; SAID CONVEYOR MEANS INCLUDING AN ANNULAR, SCRAPER-TYPE CONVEYOR SURROUNDING SAID COLUMN AND MOVABLE WITH SAID CONVEYOR MEANS ABOUT THE AXIS OF SAID COLUMN;
Claim 2
Dependent Claim
123 words
A SILO FOR BULK STORAGE OF VAULT-FORMING MATERIAL COMPRISING A ROOF, FLOOR AND SIDE WALLS FORMING A CYLINDRICAL STORAGE SPACE FOR SAID MATERIAL, A HOLLOW CYLINDRICAL COLUMN SECURED TO SAID FLOOR, EXTENDING AXIALLY IN SAID CYLINDRICAL STORAGE SPACE AND TERMINATING BELOW SAID ROOF; A POWER-DRIVEN BEAM JOURNALED ON SAID COLUMN AND EXTENDING RADIALLY THEREFROM SUBSTANTIALLY TO THE INNER PERIPHERY OF SAID CYLINDRICAL STORAGE SPACE FOR ROTARY MOVEMENT ABOUT THE VERTICAL AXIS OF SAID COLUMN; CONVEYOR MEANS EXTENDING BENEATH SAID BEAM AND SUSPENDED THEREFROM FOR CONVEYING MATERIAL RADIALLY TOWARD SAID COLUMN, SAID CONVEYOR MEANS AND BEAM BEING ROTATABLE AS A UNIT; SAID CONVEYOR MEANS INCLUDING AN ANNULAR, SCRAPER-TYPE CONVEYOR SURROUNDING SAID COLUMN AND MOVABLE WITH SAID CONVEYOR MEANS ABOUT THE AXIS OF SAID COLUMN;
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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |