US2536286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the table agglomeration concentration of ore
Assignee: Virginia Carolina Chemical Corp
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Filing: 1947-09-04
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Granted: 1951-01-02
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Expires: 1967-09-04
Abstract
No abstract record available.
Inventors
- 👤 Louis F Hewett
- 👤 Charles E Heinrichs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:41
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/02; B03B5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A PROCESS FOR CONCENTRATING A NON-METALLIC ORE COMPRISING SELECTIVELY CONDITIONING AN AQUEOUS PULP OF THE ORE FOR AGGLOMERATION TABLING ON A RIFFIED SHAKING CONCENTRATING TABLE, FORMING A FLOWING STREAM OF SAID PULP DOWN AN INCLINE, CONTINUING THE FLOW OF SAID STREAM UNTIL SUBSTANTIAL STRATIFICATION TAKES PLACE IN SAID STREAM, DIVIDING SAID STREAM INTO TWO FLOWING PORTIONS, ONE OF SAID PORTIONS CONSISTING OF A LOWER STRATUM OF SAID STREAM RELATIVELY RICH IN GANGUE AND THE OTHER OF SAID PORTIONS CONSISTING OF AN UPPER STRATUM RELATIVELY RICH IN CONCENTRATES, CONTINUOUSLY NORMALLY INTRODUCING ONTO SAID TABLE THE FLOWING PORTION CONSISTING OF THE UPPER STRATUM, SIMULTANEOUSLY CONTINUOUSLY INTRODUCING THE FLOWING PORTION CONSISTING OF THE LOWER STRATUM ONTO SAID TABLE AT A POINT NEARER THE TAILINGS DISCHARGE END OF SAID TABLE, SIMULTANEOUSLY CONCENTRATING BOTH OF THE THUS INTRODUCED PORTIONS BY THE ACTION OF SAID TABLE AND COLLECTING THE CONCENTRATES DISCHARGED FROM SAID TABLE.
Claim 2
Dependent Claim
148 words
A PROCESS FOR CONCENTRATING A NON-METALLIC ORE COMPRISING SELECTIVELY CONDITIONING AN AQUEOUS PULP OF THE ORE FOR AGGLOMERATION TABLING ON A RIFFIED SHAKING CONCENTRATING TABLE, FORMING A FLOWING STREAM OF SAID PULP DOWN AN INCLINE, CONTINUING THE FLOW OF SAID STREAM UNTIL SUBSTANTIAL STRATIFICATION TAKES PLACE IN SAID STREAM, DIVIDING SAID STREAM INTO TWO FLOWING PORTIONS, ONE OF SAID PORTIONS CONSISTING OF A LOWER STRATUM OF SAID STREAM RELATIVELY RICH IN GANGUE AND THE OTHER OF SAID PORTIONS CONSISTING OF AN UPPER STRATUM RELATIVELY RICH IN CONCENTRATES, CONTINUOUSLY NORMALLY INTRODUCING ONTO SAID TABLE THE FLOWING PORTION CONSISTING OF THE UPPER STRATUM, SIMULTANEOUSLY CONTINUOUSLY INTRODUCING THE FLOWING PORTION CONSISTING OF THE LOWER STRATUM ONTO SAID TABLE AT A POINT NEARER THE TAILINGS DISCHARGE END OF SAID TABLE, SIMULTANEOUSLY CONCENTRATING BOTH OF THE THUS INTRODUCED PORTIONS BY THE ACTION OF SAID TABLE AND COLLECTING THE CONCENTRATES DISCHARGED FROM SAID TABLE.
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) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |