Patent US3348676A successfully refreshed from Google Patents.
US3348676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cleaning unit
Assignee: International Motors LLC
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Filing: 1964-08-05
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Granted: 1967-10-24
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Expires: 1984-08-05
Abstract
No abstract record available.
Inventors
- 👤 Elof K Karlsson
- 👤 Edward C Collins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:59
CPC Classifications
A; A01; A01F; A01F12/00; A01F12/44; A01F12/442
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
A DEVICE FOR REMOVING NONGRAIN MATERIAL FROM A MIXTURE THEREOF WITH GRAIN COMPRISING: AN ELONGATED HOUSING HAVING A FRONT WALL, A REAR WALL AND INNER AND OUTER SIDE WALLS; AN ELONGATED HORIZONTALLY EXTENDING GRAIN IMPELLER DISPOSED WITHIN SAID HOUSING ADAPTED TO TOSS MATERIAL UPWARDLY THEREFROM; AN ELONGATED INCLINED SURFACE DISPOSED IN SAID HOUSING SPACED FROM ONE SIDE WALL THEREOF AND IN THE PATH OF THE TOSSED MATERIAL, SAID INCLINED SURFACE AND SAID ONE SIDE WALL PROVIDING AN AISLE THEREBETWEEN; A PLURALITY OF GUIDES DISPOSED ON SAID INCLINED SURFACE EXTENDING DOWNWARDLY FROM SAID FRONT TO SAID REAR WALL; A GRID REMOVABLY DISPOSED IN A LOWER PORTION OF SAID INCLINED SURFACE AND PROVIDING MEANS THROUGH WHICH GRAIN FROM THE FALLING MATERIAL CAN PASS AND OVER WHICH THE REMAINDER OF THE MATERIAL IS RETURNED TO SAID IMPELLER; A CLEAN GRAIN TROUGH DISPOSED BELOW SAID GRID; AND MEANS FOR DIRECTING A FIRST AIR CURRENT ON ONE SIDE OF SAID INCLINED SURFACE INTO THE TOSSED MATERIAL AND A SECOND AIR CURRENT ON THE OTHER SIDE OF SAID INCLINED SURFACE THROUGH SAID AISLE, SUCH THAT SAID TOSSED MATERIAL ENCOUNTERS SAID FIRST CURRENT BEFORE FALLING ONTO THE INCLINED SURFACE AND SAID GRAIN THAT PASSES THROUGH SAID GRID ENCOUNTERS AND SECOND AIR CURRENT WHILE FALLING THROUGH SAID AISLE WHEREBY LIGHT NONGRAIN MATERIAL IS CARRIED AWAY BY SAID CURRENTS.
Claim 2
Independent Claim
220 words
A DEVICE FOR REMOVING NONGRAIN MATERIAL FROM A MIXTURE THEREOF WITH GRAIN COMPRISING: AN ELONGATED HOUSING HAVING A FRONT WALL, A REAR WALL AND INNER AND OUTER SIDE WALLS; AN ELONGATED HORIZONTALLY EXTENDING GRAIN IMPELLER DISPOSED WITHIN SAID HOUSING ADAPTED TO TOSS MATERIAL UPWARDLY THEREFROM; AN ELONGATED INCLINED SURFACE DISPOSED IN SAID HOUSING SPACED FROM ONE SIDE WALL THEREOF AND IN THE PATH OF THE TOSSED MATERIAL, SAID INCLINED SURFACE AND SAID ONE SIDE WALL PROVIDING AN AISLE THEREBETWEEN; A PLURALITY OF GUIDES DISPOSED ON SAID INCLINED SURFACE EXTENDING DOWNWARDLY FROM SAID FRONT TO SAID REAR WALL; A GRID REMOVABLY DISPOSED IN A LOWER PORTION OF SAID INCLINED SURFACE AND PROVIDING MEANS THROUGH WHICH GRAIN FROM THE FALLING MATERIAL CAN PASS AND OVER WHICH THE REMAINDER OF THE MATERIAL IS RETURNED TO SAID IMPELLER; A CLEAN GRAIN TROUGH DISPOSED BELOW SAID GRID; AND MEANS FOR DIRECTING A FIRST AIR CURRENT ON ONE SIDE OF SAID INCLINED SURFACE INTO THE TOSSED MATERIAL AND A SECOND AIR CURRENT ON THE OTHER SIDE OF SAID INCLINED SURFACE THROUGH SAID AISLE, SUCH THAT SAID TOSSED MATERIAL ENCOUNTERS SAID FIRST CURRENT BEFORE FALLING ONTO THE INCLINED SURFACE AND SAID GRAIN THAT PASSES THROUGH SAID GRID ENCOUNTERS AND SECOND AIR CURRENT WHILE FALLING THROUGH SAID AISLE WHEREBY LIGHT NONGRAIN MATERIAL IS CARRIED AWAY BY SAID CURRENTS.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |