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Patent US3563013A successfully refreshed from Google Patents.
US3563013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic combine control
Assignee: Massey Ferguson Inc
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Filing: 1968-07-22
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Granted: 1971-02-16
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Expires: 1988-07-22
Abstract
Abstract A HARVESTING COMBINE WITH A CROP SEPARATING UNIT AND HVING AN ELECTROMECHANICAL TRANSDUCER LOCATED IN THE MACHINE AT A POINT FOR MEASURING THE RELATIVE AMOUNT OF UNSEPARATED GRAIN AND THEREBY THE EFFICIENCY OF THE SEPARATION UNIT, AUTOMATIC GROUND SPEED CONTROL FOR THE MACHINE THAT IS RESPONSIVE TO CHANGES IN THE OUTPUT OF THE TRANSDUCER TO CHANGE THE SPEED OF THE MACHINE TO MAINTAIN THE GRAIN LOSS BELOW A PREDETERMINED MINIMUM. A MANUAL CONTROL IS PROVIDED TO SET THE PREDETERMINED MINIMUM AND OVERRIDE THE AUTOMATIC CONTROL.
Inventors
- 👤 Lee E Elfes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:16
CPC Classifications
A; A01; A01D; A01D41/00; A01D41/12; A01D41/127; A01D41/1271; A01D41/1272; A01D41/1273; Y; Y10; Y10S; Y10S56/00; Y10S56/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |