US3012671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flotation apparatus
Assignee: International Minerals and Chemical Corp
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Filing: 1959-08-31
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Granted: 1961-12-12
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Expires: 1979-08-31
Abstract
No abstract record available.
Inventors
- 👤 Hans U Ziemer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:04
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/24; B03D1/26; B03D1/02; B03D1/028; B03D1/1443; B03D1/1462; B03D1/1475; B03D1/245; B03D1/247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
FLOTATION CELL APPARATUS COMPRISING A VERTICAL RIGIDWALLED LATERALLY DIVERGING CONDUIT HAVING A SUBSTANTIALLY CENTRALLY POSITIONED BOTTOM INLET AND AN OVERFLOW ADJACENT TO THE UPPER END, A SUBSTANTIALLY VERTICAL INFLOW CONDUIT CONNECTED TO THE BOTTOM INLET OF SAID DIVERGING CONDUIT FOR INTRODUCING A STREAM OF FLUID VERTICALLY UPWARD INTO SAID FLOTATION CELL, AND AERATING MEANS CARRIED BY THE DIVERGING CONDUIT ADJACENT THE CONDUIT WALL AND PROVIDING A PLURALITY OF GENERALLY HORIZONTALLY ARRANGED APERTURES ENCIRCLING SAID STREAM OF FLUID, SAID AERATING MEANS BEING DISPOSED ABOVE THE OUTFLOW END OF SAID INFLOW CONDUIT AND BELOW SAID OVERFLOW TO EFFECT A DISTRIBUTION OF AIR BUBBLES ACROSS A HORIZONTAL CROSS SECTION OF THE CELL WHEN THE FLOTATION CELL IS IN OPERATION.
Claim 2
Dependent Claim
116 words
FLOTATION CELL APPARATUS COMPRISING A VERTICAL RIGIDWALLED LATERALLY DIVERGING CONDUIT HAVING A SUBSTANTIALLY CENTRALLY POSITIONED BOTTOM INLET AND AN OVERFLOW ADJACENT TO THE UPPER END, A SUBSTANTIALLY VERTICAL INFLOW CONDUIT CONNECTED TO THE BOTTOM INLET OF SAID DIVERGING CONDUIT FOR INTRODUCING A STREAM OF FLUID VERTICALLY UPWARD INTO SAID FLOTATION CELL, AND AERATING MEANS CARRIED BY THE DIVERGING CONDUIT ADJACENT THE CONDUIT WALL AND PROVIDING A PLURALITY OF GENERALLY HORIZONTALLY ARRANGED APERTURES ENCIRCLING SAID STREAM OF FLUID, SAID AERATING MEANS BEING DISPOSED ABOVE THE OUTFLOW END OF SAID INFLOW CONDUIT AND BELOW SAID OVERFLOW TO EFFECT A DISTRIBUTION OF AIR BUBBLES ACROSS A HORIZONTAL CROSS SECTION OF THE CELL WHEN THE FLOTATION CELL IS IN OPERATION.
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) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |