Patent US3266677A successfully refreshed from Google Patents.
US3266677A
Expired / Lapsed
US
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Metering hopper
Assignee: Pennwalt Corp
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Filing: 1964-08-27
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Granted: 1966-08-16
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Expires: 1984-08-27
Abstract
No abstract record available.
Inventors
- 👤 William H Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:29
CPC Classifications
B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/48; B65G65/4809; B65G65/4872; B30; B30B; B30B15/00; B30B15/30; B30B15/302; B65G65/4818; B65G65/4827
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A HOPPER FOR FEEDING A METERED AMOUNT OF GRANULAR MATERIAL INTO A PRESS, SAID HOPPER COMPRISING A HOUSING ADAPTED TO RECEIVE A QUANTILY OF GRANULAR MATERIAL, SAID HOUSING HAVING A BOTTOM WALL, A METERING DEVICE ROTATABLY MOUNTED WITHIN SAID HOUSING ADJACENT SAID BOTTOM WALL, SAID METERING DEVICE INCLUDING A HUB PROVIDING AN AXIS OF ROTATION FOR SAID METERING DEVICE, A PLURALITY OF UPWARDLY EXTENDING PROJECTIONS ON SAID METERING DEVICE, SAID PROJECTIONS BEING IN RADIALLY SPACED RELATION TO SAID AXIS OF ROTATION, AT LEAST SOME OF THE CLOSEST ADJACENT ONES OF SAID PROJECTIONS IN A GENERALLY CIRCUMFERENTIAL DIRECTION BEING OFFSET IN A RADIAL DIRECTION FORM EACH OTHER, CHUTE
Claim 2
Dependent Claim
107 words
A HOPPER FOR FEEDING A METERED AMOUNT OF GRANULAR MATERIAL INTO A PRESS, SAID HOPPER COMPRISING A HOUSING ADAPTED TO RECEIVE A QUANTILY OF GRANULAR MATERIAL, SAID HOUSING HAVING A BOTTOM WALL, A METERING DEVICE ROTATABLY MOUNTED WITHIN SAID HOUSING ADJACENT SAID BOTTOM WALL, SAID METERING DEVICE INCLUDING A HUB PROVIDING AN AXIS OF ROTATION FOR SAID METERING DEVICE, A PLURALITY OF UPWARDLY EXTENDING PROJECTIONS ON SAID METERING DEVICE, SAID PROJECTIONS BEING IN RADIALLY SPACED RELATION TO SAID AXIS OF ROTATION, AT LEAST SOME OF THE CLOSEST ADJACENT ONES OF SAID PROJECTIONS IN A GENERALLY CIRCUMFERENTIAL DIRECTION BEING OFFSET IN A RADIAL DIRECTION FORM EACH OTHER, CHUTE
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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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |