US3425423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grain separator
Assignee: ROSS B MCKENZIE
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Filing: 1966-08-24
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Granted: 1969-02-04
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Expires: 1986-08-24
Abstract
No abstract record available.
Inventors
- 👤 Ross B Mckenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:42
CPC Classifications
A; A01; A01F; A01F12/00; A01F12/18; A01F12/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
AN APPARATUS FOR SEPARATING GRAIN FROM STRAW COMPRISING: (A) A FORE AND AFT FRAME MOUNTED ON A GRAIN HARVESTER INCLUDING A TRANSVERSE THRESHER CYLINDER, SAID FRAME BEING LOCATED AFT OFF THE THRESHER CYLINDER; (B) A STATIONARY CIRCULAR CYLINDRICAL DRUM MOUNTED ON SAID FRAME, THE AXIS OF SAID DRUM BEING ANGULARLY ORIENTED WITH RESPECT TO THE HARVESTER PATH AND BEING INCLINED REARWARDLY AND DOWNWARDLY; (C) A ROTATABLE CIRCULAR CYLINDRICAL FORAMINOUS TUBE WITHIN SAID DRUM IN COXIAL RELATION THEREWITH, SAID TUBE BEING RADIALLY SPACED FROM SAID DRUM TO AFFORD AN ANNULAR GRAIN-RECEIVING CHAMBER THEREBETWEEN; (D) A STATIONARY DEFLECTOR STRUCTURE WITHIN SAID TUBE, SAID DEFLECTOR STRUCTURE INCLUDING A DEFLECTOR PLATE LOCATED ADJACENT THE DISCHARGE SIDE OF THE THRESHER CYLINDER AND ANGULARLY INCLINED TO THE THRESHER CYLINDER TO DEFLECT THE MATERIAL DISCHARGING THEREFROM; AND, (E) BLOWER MEANS CONNECTED TO SAID DRUM FOR PASSING AIR THROUGH SAID DRUM IN A REARWARD DIRECTION, THE AIR CURRENT BEING SUFFICIENT TO DRIVE STRAW THROUGH SAID DRUM TO DISCHARGE THEREFROM AND BEING INSUFFICIENT TO CARRY GRAIN THERETHROUGH, SAID GRAIN FALLING ONTO AND PASSING THROUGH SAID FORAMINOUS TUBE INTO SAID ANNULAR GRAIN-RECEIVING CHAMBER.
Claim 2
Independent Claim
183 words
AN APPARATUS FOR SEPARATING GRAIN FROM STRAW COMPRISING: (A) A FORE AND AFT FRAME MOUNTED ON A GRAIN HARVESTER INCLUDING A TRANSVERSE THRESHER CYLINDER, SAID FRAME BEING LOCATED AFT OFF THE THRESHER CYLINDER; (B) A STATIONARY CIRCULAR CYLINDRICAL DRUM MOUNTED ON SAID FRAME, THE AXIS OF SAID DRUM BEING ANGULARLY ORIENTED WITH RESPECT TO THE HARVESTER PATH AND BEING INCLINED REARWARDLY AND DOWNWARDLY; (C) A ROTATABLE CIRCULAR CYLINDRICAL FORAMINOUS TUBE WITHIN SAID DRUM IN COXIAL RELATION THEREWITH, SAID TUBE BEING RADIALLY SPACED FROM SAID DRUM TO AFFORD AN ANNULAR GRAIN-RECEIVING CHAMBER THEREBETWEEN; (D) A STATIONARY DEFLECTOR STRUCTURE WITHIN SAID TUBE, SAID DEFLECTOR STRUCTURE INCLUDING A DEFLECTOR PLATE LOCATED ADJACENT THE DISCHARGE SIDE OF THE THRESHER CYLINDER AND ANGULARLY INCLINED TO THE THRESHER CYLINDER TO DEFLECT THE MATERIAL DISCHARGING THEREFROM; AND, (E) BLOWER MEANS CONNECTED TO SAID DRUM FOR PASSING AIR THROUGH SAID DRUM IN A REARWARD DIRECTION, THE AIR CURRENT BEING SUFFICIENT TO DRIVE STRAW THROUGH SAID DRUM TO DISCHARGE THEREFROM AND BEING INSUFFICIENT TO CARRY GRAIN THERETHROUGH, SAID GRAIN FALLING ONTO AND PASSING THROUGH SAID FORAMINOUS TUBE INTO SAID ANNULAR GRAIN-RECEIVING CHAMBER.
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) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |