US3222852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snapping roll assembly for corn harvesters
Assignee: SOUTH AFRICAN FARM IMPLEMENT MANUFACTURERS Ltd
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Filing: 1963-04-29
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Granted: 1965-12-14
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Walter H Ward
- 👤 Richard L Millman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:05
CPC Classifications
A; A01; A01D; A01D45/00; A01D45/02; A01D45/021; A01D45/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A CORN HARVESTER, THE COMBINATION COMPRISING, A PAIR OF ELONGATED COUNTERROTATING GRIPPING ROLLS JOURNALLED WITH THEIR AXES DISPOSED DOWN AND FORWARD OF THE HARVESTER, SAID GRIPPING ROLLS HAVING AXIALLY EXTENDING FLUTES AND HELICALLY WOUND RIDGES FOR GRIPPING STALKS AND PULLING THEM DOWNWARDLY AND REARWARDLY, THE AXIAL FLUTES AND HELICAL RIDGES ON ONE OF SAID GRIPPING ROLLS BEING DISPOSED TO INTERMESH WITH THE AXIAL FLUTES AND HELICAL RIDGES ON THE OTHER OF SAID GRIPPING ROLLS AS SAID ROLLS ARE ROTATED, A PAIR OF ELONGATED COOURTERROTATING SMOOTH SNAP-
Claim 2
Dependent Claim
87 words
IN A CORN HARVESTER, THE COMBINATION COMPRISING, A PAIR OF ELONGATED COUNTERROTATING GRIPPING ROLLS JOURNALLED WITH THEIR AXES DISPOSED DOWN AND FORWARD OF THE HARVESTER, SAID GRIPPING ROLLS HAVING AXIALLY EXTENDING FLUTES AND HELICALLY WOUND RIDGES FOR GRIPPING STALKS AND PULLING THEM DOWNWARDLY AND REARWARDLY, THE AXIAL FLUTES AND HELICAL RIDGES ON ONE OF SAID GRIPPING ROLLS BEING DISPOSED TO INTERMESH WITH THE AXIAL FLUTES AND HELICAL RIDGES ON THE OTHER OF SAID GRIPPING ROLLS AS SAID ROLLS ARE ROTATED, A PAIR OF ELONGATED COOURTERROTATING SMOOTH SNAP-
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |