US3091334A
Expired / Lapsed
US
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Centrifugal separation method and means
Assignee: Denver Equipment Co
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Filing: 1959-07-20
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Granted: 1963-05-28
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Expires: 1979-07-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:34
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/24; B04C5/26; B04C5/02; B04C5/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
IN CENTRIFUGAL SEPARATION APPARATUS OF THE CYCLONE SEPARATOR TYPE, TWO ELONGATED HOLLOW CASINGS DEFINING SEPERATE TREATMENT CHAMBERS, GENERALLY CIRCULAR IN CROSS-SECTION, EACH CASING HAVING A SEPARATE PERIPHERAL FIXED INLET A SEPARATE OUTLET FOR AN INNER, AXIALLY DISCHARGING LIGHTER FRACTION AND ANOTHER SEPARATE OUTLET FOR AN OUTER, HEAVIER FRACTION, AND MEANS ASSOCIATED WITH SAID CASINGS FOR DIRECTING A PULP FEED INTO AT LEAST TWO STREAMS OF SIZE SEGREGATED PULP CONSTITUENTS FLOWING IN A COMMON PLANE TOWARD THE RESPECTIVE INLETS OF SAID CASINGS. INCLUDING CONDUIT MEANS IN SAID COMMON PLANE FOR SAID STREAMS, AND FLOW DIVIDING MEANS MOUNTED IN SAID CONDUIT MEANS ADJACENT A FIRST CASING FOR SEPARATING SAID STREAMS SO AS TO DIRECT ONE FLOW AS THE PULP FEED IN ONE SIZE RANGE TO ONE SAID CHAMBER AND A SECOND FLOW AS THE PULP FEED IN DIFFERENT SIZE RANGE TO THE OTHER SAID CHAMBER.
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) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |