US2765074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separating ores
Assignee: Individual
•
Filing: 1955-02-11
•
Granted: 1956-10-02
•
Expires: 1975-02-11
Abstract
No abstract record available.
Inventors
- 👤 Grant S Diamond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:34
CPC Classifications
B; B03; B03C; B03C7/00; B03C7/003
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
144 words
THE METHOD OF SEPARATING A MINERAL INERT TO AN ELECTROSTATIC CHARGE FROM AN ORE WHICH COMPRISES THE STEPS OF BULK MINING THE ORE, SUBMITTING THE ORE TO A PRIMARY CRUSHING, SUBMITTING THE PRIMARY CRUSHED ORE TO A SECONDARY CRUSHING TO SPLINTER SUBSTANTIALLY ALL OF THE CRYSTALS CONTAINED THEREIN TO OBTAIN SPLINTERS HAVING CLEAN EXPOSED CRYSTALLINE SURFACES, COARSE SCALPING THE SECONDARY CRUSHED ORE TO REMOVE MICA TAILING, AIR CLEANING AND SCREENING THE SCALPED ORE TO REMOVE DUST AND FINES, SUBMITTING THE AIR CLEANED AND SCREENED ORE TO A HI-INTENSITY INDUCED MAGNETIC FIELD TREATMENT TO REMOVE MAGNETICALLY AFFECTED WASTES, HEATING AND AGITATING THE HI-INTENSITY INDUCED MAGNETIC FIELD TEATED ORE TO DEVELOP ELECTROSTATIC CHARGES ON THE SPLINTERS, SUBMITTING THE AGITATED AND HEATED ORE TO AN ELECTROSTATIC FIELD TREATMENT BY DROPPING THE ORE THROUGH A HI-VOLTAGE ELECTROSTATIC FIELD TO REMOVE THE ELECTROSTATICALLY AFFECTED WASTES FROM THE INERT MINERAL.
References Cited (Backward Citations)
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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) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |