Patent US2975299A successfully refreshed from Google Patents.
US3341093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge with automatic control of the discharge of concentrated solids
Assignee: Czech Academy of Sciences
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Filing: 1965-04-12
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Granted: 1967-09-12
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Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 Putterlik Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:52
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/10; B04B1/14; B04B1/16; B04B1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
IN A CENTRIFUGE, IN COMBINATION: (A) A ROTARY BOWL HAVING AN AXIS; (B) PARTITION MEANS IN THE OUTER PERIPHERAL PORTION OF SAID BOWL REMOTE FROM SAID AXIS, SAID PARTITIAON MEANS DEFINING A PERIPHERAL SERIES OF SOLIDS COLLECTING CHAMBERS, (1) EACH CHAMBER HAVING TWO OPPOSITE WALLS CONVERGING IN A RADIALLY OUTWARD DIRECTION AND A DISCHARGE NOZZLE OPENING RADIALLY OUTWARD FROM SAID CHAMBER; (C) VALVE MEANS IN EACH OF SAID CHAMBERS AND MOVABLE IN THE ASSOCIATED CHAMBER TOWARD AND AWAY FROM SAID DISCHARGE NOZZLE BETWEEN A NOZZLE OPENING AND A NOZZLE CLOSING POSITION; (D) VALVE REGULATING MEANS MOUNTED IN EACH CHAMBER SPACEDLY INTERMEDIATE SAID WALLS, (1) SAID VALVE REGULATING MEANS BEING CONNECTED TO SAID VALVE MEANS IN THE ASSOCIATED CHAMBER AND RESPONSIVE TO PRESSURE IN SAID CHAMBER IN A DIRECTION TRANSVERSE OF SAID RADIALLY OUTWARD DIRECTION FOR MOVING SAID VALVE MEANS FROM THE NOZZLE CLOSING TO THE NOZZLE OPENING POSITION.
Claim 2
Dependent Claim
148 words
IN A CENTRIFUGE, IN COMBINATION: (A) A ROTARY BOWL HAVING AN AXIS; (B) PARTITION MEANS IN THE OUTER PERIPHERAL PORTION OF SAID BOWL REMOTE FROM SAID AXIS, SAID PARTITIAON MEANS DEFINING A PERIPHERAL SERIES OF SOLIDS COLLECTING CHAMBERS, (1) EACH CHAMBER HAVING TWO OPPOSITE WALLS CONVERGING IN A RADIALLY OUTWARD DIRECTION AND A DISCHARGE NOZZLE OPENING RADIALLY OUTWARD FROM SAID CHAMBER; (C) VALVE MEANS IN EACH OF SAID CHAMBERS AND MOVABLE IN THE ASSOCIATED CHAMBER TOWARD AND AWAY FROM SAID DISCHARGE NOZZLE BETWEEN A NOZZLE OPENING AND A NOZZLE CLOSING POSITION; (D) VALVE REGULATING MEANS MOUNTED IN EACH CHAMBER SPACEDLY INTERMEDIATE SAID WALLS, (1) SAID VALVE REGULATING MEANS BEING CONNECTED TO SAID VALVE MEANS IN THE ASSOCIATED CHAMBER AND RESPONSIVE TO PRESSURE IN SAID CHAMBER IN A DIRECTION TRANSVERSE OF SAID RADIALLY OUTWARD DIRECTION FOR MOVING SAID VALVE MEANS FROM THE NOZZLE CLOSING TO THE NOZZLE OPENING POSITION.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |