Patent US2556483A successfully refreshed from Google Patents.
US2556483A
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Separation method
Assignee: Shell Development Co
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Filing: 1945-06-19
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Granted: 1951-06-12
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Expires: 1965-06-19
Abstract
No abstract record available.
Inventors
- 👤 Norman E Peery
- 👤 Donald L Cleveland
- 👤 John A Hatton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:38
CPC Classifications
B; B03; B03C; B03C7/00; B03C7/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
METHOD FOR THE SEPARATION OF HETEROGENOUS MIXTURES OF RELATIVELY ACTIVATABLE AND RELATIVELY NON-ACTIVATABLE CONSTITUENTS WHICH COMPRISES CALCINING A HETEROGENEOUS MIXTURE OF PARTICLES OF RELATIVELY NON-ACTIVATABLE AND RELATIVELY ACTIVATABLE MATERIAL CONTAINING BOUND WATER TO REMOVE A PART OF THE BOUND WATER FROM THE RELATIVELY ACTIVATABLE MATERIAL THEREBY RENDERING THE SAME MICROPOROUS, ADSORBING AN ELECTROLYTE ON THE CONSTITUENTS OF THE RESULTING MATERIAL IN AMOUNTS SUBSTANTIALLY PROPORTIONAL TO THEIR SURFACES BY BRINGING SAID MATERIAL INTO CONTACT WITH VAPORS OF SAID ELECTROLYTE, AND THEN SEPARATING THE MATERIAL IN THE FORM OF DISCRETE PARTICLES PASSING A 6-MESH SIEVE INTO A CONCENTRATE OF ACTIVATED PARTICLES HAVING THE ELECTROLYTE ADSORBED THEREIN AND A CONCENTRATE OF RELATIVELY NON-ACTIVATED PARTICLES BY MEANS OF A HIGH POTENTIAL ELECTRIC FIELD.
Claim 2
Dependent Claim
119 words
METHOD FOR THE SEPARATION OF HETEROGENOUS MIXTURES OF RELATIVELY ACTIVATABLE AND RELATIVELY NON-ACTIVATABLE CONSTITUENTS WHICH COMPRISES CALCINING A HETEROGENEOUS MIXTURE OF PARTICLES OF RELATIVELY NON-ACTIVATABLE AND RELATIVELY ACTIVATABLE MATERIAL CONTAINING BOUND WATER TO REMOVE A PART OF THE BOUND WATER FROM THE RELATIVELY ACTIVATABLE MATERIAL THEREBY RENDERING THE SAME MICROPOROUS, ADSORBING AN ELECTROLYTE ON THE CONSTITUENTS OF THE RESULTING MATERIAL IN AMOUNTS SUBSTANTIALLY PROPORTIONAL TO THEIR SURFACES BY BRINGING SAID MATERIAL INTO CONTACT WITH VAPORS OF SAID ELECTROLYTE, AND THEN SEPARATING THE MATERIAL IN THE FORM OF DISCRETE PARTICLES PASSING A 6-MESH SIEVE INTO A CONCENTRATE OF ACTIVATED PARTICLES HAVING THE ELECTROLYTE ADSORBED THEREIN AND A CONCENTRATE OF RELATIVELY NON-ACTIVATED PARTICLES BY MEANS OF A HIGH POTENTIAL ELECTRIC FIELD.
References Cited (Backward Citations)
US959646A
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US2090418A
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US2245200A
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US2206337A
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US2356717A
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US2412868A
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US2430015A
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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) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |