US3235072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control method and apparatus for heavy media separation process
Assignee: Industrial Nucleonics Corp
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Filing: 1961-01-05
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Granted: 1966-02-15
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Expires: 1981-01-05
Abstract
No abstract record available.
Inventors
- 👤 David L Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:53
CPC Classifications
B; B03; B03B; B03B13/00; B03B13/005
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
APPARATUS FOR CONTROLLING THE OPERATING DENSITY OF A HEAVY MEDIA SEPARATION PROCESS IN WHICH ORE BEARING SLIMES ARE ADMITTED TO THE INPUT OF A SEPARATOR ALSO HAVING A FLOAT SCREEN DRAIN AND A SINK SCREEN DRAIN RECIRCULATED THERETO, COMPRISING MEANS FOR MEASURING THE DENSITY OF SAID FLOAT SCREEN DRAIN, MEANS FOR MEASURING THE DENSITY OF SAID SINK SCREEN DRAIN, MEANS FOR COMPUTING THE DIFFERENCE BETWEEN SAID DENSITIES, AND MEANS FOR CONTROLLING THE REMOVAL OR ADDITION OF SAID SLIMES AT SAID SEPARATOR INPUT IN ACCORDANCE WITH SAID COMPUTED DIFFERENCE.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |