Patent US3157313A successfully refreshed from Google Patents.
US3157313A
Expired / Lapsed
US
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Electrically operated feed metering device
Assignee: Individual
•
Filing: 1962-04-19
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Granted: 1964-11-17
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Expires: 1982-04-19
Abstract
No abstract record available.
Inventors
- 👤 Sarmento Frank
- 👤 Louis B Almeida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:18
CPC Classifications
A; A01; A01K; A01K5/00; A01K5/02; A01K5/0275; G; G01; G01F; G01F13/00; G01F13/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A FEED METERING DEVICE FOR USE IN GRAIN FEEDING SYSTEMS COMPRISING A HOPPER, A PLATE DISPOSED TO CLOSE THE BOTTOM OF SAID HOPPER, SAID PLATE HAVING STEPPED PARALLEL PORTIONS FORMED THEREIN, SAID STEPPED PARALLEL PORTIONS OF SAID PLATE EACH HAVING A FEED OPENING DISPOSED THERETHROUGH, A PARTIAL DISC HAVING AN ARCUATE PERIPHERAL EXTENT LESS THAN 180* DISPOSED UPON EACH OF SAID PORTIONS TO COVER AND UNCOVER EACH OF SAID FEED OPENINGS UPON ROTATION OF SAID DISCS, SAID DISCS TO BE IN STEPPED PARALLEL RELATION TO OVERLAP ONE ANOTHER WHEN ROTATED, ELECTRIC POWER MEANS COUPLED TO EACH OF SAID DISCS TO ROTATE EITHER OF THE LATTER WHEN THE FORMER ARE ENERGIZED, AND SWITCH MEANS CONNECTED BETWEEN SAID ELECTRIC POWER
Claim 2
Dependent Claim
118 words
A FEED METERING DEVICE FOR USE IN GRAIN FEEDING SYSTEMS COMPRISING A HOPPER, A PLATE DISPOSED TO CLOSE THE BOTTOM OF SAID HOPPER, SAID PLATE HAVING STEPPED PARALLEL PORTIONS FORMED THEREIN, SAID STEPPED PARALLEL PORTIONS OF SAID PLATE EACH HAVING A FEED OPENING DISPOSED THERETHROUGH, A PARTIAL DISC HAVING AN ARCUATE PERIPHERAL EXTENT LESS THAN 180* DISPOSED UPON EACH OF SAID PORTIONS TO COVER AND UNCOVER EACH OF SAID FEED OPENINGS UPON ROTATION OF SAID DISCS, SAID DISCS TO BE IN STEPPED PARALLEL RELATION TO OVERLAP ONE ANOTHER WHEN ROTATED, ELECTRIC POWER MEANS COUPLED TO EACH OF SAID DISCS TO ROTATE EITHER OF THE LATTER WHEN THE FORMER ARE ENERGIZED, AND SWITCH MEANS CONNECTED BETWEEN SAID ELECTRIC POWER
References Cited (Backward Citations)
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Cited
US2503878A
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US2527136A
Cited
US2953281A
Cited
US2948437A
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US2975937A
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US3060289A
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US3068331A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |