Patent US3213857A successfully refreshed from Google Patents.
US3213857A
Expired / Lapsed
US
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Adjustable drive and air intake for a combine fanning mill
Assignee: AGCO Ltd
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Filing: 1963-03-15
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Granted: 1965-10-26
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Expires: 1983-03-15
Abstract
No abstract record available.
Inventors
- 👤 Robert A Ashton
- 👤 Wilbert D Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:05
CPC Classifications
A; A01; A01F; A01F12/00; A01F12/44; A01F12/444; A01F12/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A COMBINE HAVING A DRIVING MEMBER, A FANNING MILL COMPRISING, IN COMBINATION, A GENERALLY CYLINDRICAL CASING HAVING A TANGENTIALLY OPENING AIR DISCHARGE PASSAGE, A FAN MOUNTED ON A SHAFT JOURNALLED COAXIALLY WITHIN SAID CASING, AN AIR INTAKE DUCT SURROUNDING SAID SHAFT AT ONE END OF SAID CASING, SAID CASING BEING OPEN TO RECEIVE AIR FROM SAID DUCT, A PLURALITY OF SHUTTER ELEMENTS ADJUSTABLY MOUNTED IN SAID DUCT FOR CONTROLLING THE RATE AT WHICH AIR IS DRAWN THROUGH SAID DUCT BY SAID FAN, AND AN ADJUSTABLE RATIO DRIVING CONNECTION DISPOSED INTERMEDIATE THE DRIVING MEMBER AND THE SHAFT FOR COUPLING SAID DRIVING MEMBER TO SAID SHAFT FOR CONTROLLING THE SPEED OF SAID FAN.
Claim 2
Dependent Claim
112 words
IN A COMBINE HAVING A DRIVING MEMBER, A FANNING MILL COMPRISING, IN COMBINATION, A GENERALLY CYLINDRICAL CASING HAVING A TANGENTIALLY OPENING AIR DISCHARGE PASSAGE, A FAN MOUNTED ON A SHAFT JOURNALLED COAXIALLY WITHIN SAID CASING, AN AIR INTAKE DUCT SURROUNDING SAID SHAFT AT ONE END OF SAID CASING, SAID CASING BEING OPEN TO RECEIVE AIR FROM SAID DUCT, A PLURALITY OF SHUTTER ELEMENTS ADJUSTABLY MOUNTED IN SAID DUCT FOR CONTROLLING THE RATE AT WHICH AIR IS DRAWN THROUGH SAID DUCT BY SAID FAN, AND AN ADJUSTABLE RATIO DRIVING CONNECTION DISPOSED INTERMEDIATE THE DRIVING MEMBER AND THE SHAFT FOR COUPLING SAID DRIVING MEMBER TO SAID SHAFT FOR CONTROLLING THE SPEED OF SAID FAN.
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |