US2761618A
Expired / Lapsed
US
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Centrifugal separation
Assignee: Sharples Corp
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Filing: 1952-09-26
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Granted: 1956-09-04
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Expires: 1972-09-26
Abstract
No abstract record available.
Inventors
- 👤 Harold C Fitzsimmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:45
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN A CENTRIFUGE FOR THE SEPARATION UNDER FULL BOWL CONDITIONS OF A CONSTINUOUS STREAM OF A DISPERSION INTO TWO CONTINUOUS STREAMS OF RESPECTIVELY DIFFERENT STANDARDIZED DISPERSED PHASE CONCENTRATIONS HAVING MEANS TO MAINTAIN A PREDETERMINED BACK PRESSURE ON ONE OF SAID STREAMS, MEANS FOR CONTINUOUSLY METERING A REGULATED AMOUNT OF SAID ONE STREAM INTO THE OTHER STREAM COMPRISING A VALVE INCLUDING A VALVE ELEMENT COOPERABLE WITH A VLAVE SEAT AND YIELDINGLY MOUNTED FOR MOVEMENT RELATIVE TO SAID VALVE SEAT IN RESPONSE TO INCREASES IN SAID BACK PRESSURE CAUSED BY BLOCKING OF THE FLOW OF SAID ONE
Claim 2
Dependent Claim
95 words
IN A CENTRIFUGE FOR THE SEPARATION UNDER FULL BOWL CONDITIONS OF A CONSTINUOUS STREAM OF A DISPERSION INTO TWO CONTINUOUS STREAMS OF RESPECTIVELY DIFFERENT STANDARDIZED DISPERSED PHASE CONCENTRATIONS HAVING MEANS TO MAINTAIN A PREDETERMINED BACK PRESSURE ON ONE OF SAID STREAMS, MEANS FOR CONTINUOUSLY METERING A REGULATED AMOUNT OF SAID ONE STREAM INTO THE OTHER STREAM COMPRISING A VALVE INCLUDING A VALVE ELEMENT COOPERABLE WITH A VLAVE SEAT AND YIELDINGLY MOUNTED FOR MOVEMENT RELATIVE TO SAID VALVE SEAT IN RESPONSE TO INCREASES IN SAID BACK PRESSURE CAUSED BY BLOCKING OF THE FLOW OF SAID ONE
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) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |