US3080074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure chamber feeder
Assignee: Beloit Iron Works Inc
•
Filing: 1959-10-16
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Granted: 1963-03-05
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Expires: 1979-10-16
Abstract
No abstract record available.
Inventors
- 👤 Hornbostel Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:23
CPC Classifications
D; D21; D21C; D21C7/00; D21C7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN COMBINATION WITH A DIGESTER FOR WOOD CHIPS AND THE LIKE, A DIGESTER FEEDER COMPRISING A ROTOR, A PAIR OF CLOSURE PLATES, SAID ROTOR BEING JOURNALLED IN SAID CLOSURE PLATES, MEANS ON SAID DIGESTER SUPPORTING SAID CLOSURE PLATES IN SEALING RELATION WITH SAID ROTOR INCLUDING A PLURALITY OF EQUI-ANGULARLY SPACED SPRINGS UNDERLYING THE BOTTOM ONE OF SAID CLOSURE PLATES IN BEARING RELATION TO THE ROTOR, SAID SUPPORTING MEANS SUPPORTING THE SPRINGS IN RADIALLY SPACED RELATION TO THE ROTOR TO PROVIDE A BALANCED SEALING CONTACT OF THE SAID ONE OF THE CLOSURE PLATES WITH THE ROTOR, INLET MEANS IN THE OTHER OF SAID CLOSURE PLATES,
Claim 2
Dependent Claim
104 words
IN COMBINATION WITH A DIGESTER FOR WOOD CHIPS AND THE LIKE, A DIGESTER FEEDER COMPRISING A ROTOR, A PAIR OF CLOSURE PLATES, SAID ROTOR BEING JOURNALLED IN SAID CLOSURE PLATES, MEANS ON SAID DIGESTER SUPPORTING SAID CLOSURE PLATES IN SEALING RELATION WITH SAID ROTOR INCLUDING A PLURALITY OF EQUI-ANGULARLY SPACED SPRINGS UNDERLYING THE BOTTOM ONE OF SAID CLOSURE PLATES IN BEARING RELATION TO THE ROTOR, SAID SUPPORTING MEANS SUPPORTING THE SPRINGS IN RADIALLY SPACED RELATION TO THE ROTOR TO PROVIDE A BALANCED SEALING CONTACT OF THE SAID ONE OF THE CLOSURE PLATES WITH THE ROTOR, INLET MEANS IN THE OTHER OF SAID CLOSURE PLATES,
References Cited (Backward Citations)
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Cited
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Cited
US2750234A
Cited
US2712963A
Cited
US2680683A
Cited
US2740672A
Cited
US2858212A
Cited
US2933208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |