US3304702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter rolls for corn harvesters
Assignee: FMC Corp
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Filing: 1964-07-17
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Granted: 1967-02-21
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Expires: 1984-07-17
Abstract
No abstract record available.
Inventors
- 👤 Dean E Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:27
CPC Classifications
A; A01; A01D; A01D45/00; A01D45/02; A01D45/021; A01D45/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A CORN HARVESTER, THE COMBINATION OF A FIRST DRIVEN CUTTER ROLL, A SECOND DRIVEN CUTTER ROLL POSITIONED PARALLEL TO AND CLOSELY ADJACENT SAID FIRST ROLL, A PLURALITY OF EVENLY SPACED CUTTER BARS SECURED TO EACH ROLL AND EACH BAR HAVING A BLUNT CUTTING EDGE DEFINED BY SURFACES DISPOSED AT AN ANGLE OF AT LEAST 90* TO EACH OTHER, A PRESSURE RESISTING BAR ON EACH ROLL DISPOSED BETWEEN EACH ADJACENT PAIR OF CUTTER BARS ON THE ROLL, AND DRIVE MEANS INTERCONNECTING SAID FIRST AND SAID SECOND ROLLS FOR ROTATING SAID ROLLS IN TIMED RELATION SO THAT A CUTTER BAR ON ONE OF SAID ROLLS WILL OPPOSE AND BE POSITIONED IMMEDIATELY ADJACENT TO A PRESSURE RESISTING BAR ON THE OTHER ROLL WHEN MOVING THROUGH A CUTTING PLANE, SAID PRESSURE RESISTING BARS EACH BEING RECTANGULAR IN CROSS SECTION.
Claim 2
Dependent Claim
136 words
IN A CORN HARVESTER, THE COMBINATION OF A FIRST DRIVEN CUTTER ROLL, A SECOND DRIVEN CUTTER ROLL POSITIONED PARALLEL TO AND CLOSELY ADJACENT SAID FIRST ROLL, A PLURALITY OF EVENLY SPACED CUTTER BARS SECURED TO EACH ROLL AND EACH BAR HAVING A BLUNT CUTTING EDGE DEFINED BY SURFACES DISPOSED AT AN ANGLE OF AT LEAST 90* TO EACH OTHER, A PRESSURE RESISTING BAR ON EACH ROLL DISPOSED BETWEEN EACH ADJACENT PAIR OF CUTTER BARS ON THE ROLL, AND DRIVE MEANS INTERCONNECTING SAID FIRST AND SAID SECOND ROLLS FOR ROTATING SAID ROLLS IN TIMED RELATION SO THAT A CUTTER BAR ON ONE OF SAID ROLLS WILL OPPOSE AND BE POSITIONED IMMEDIATELY ADJACENT TO A PRESSURE RESISTING BAR ON THE OTHER ROLL WHEN MOVING THROUGH A CUTTING PLANE, SAID PRESSURE RESISTING BARS EACH BEING RECTANGULAR IN CROSS SECTION.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |