US3012672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flotation apparatus
Assignee: International Minerals and Chemical Corp
•
Filing: 1959-08-31
•
Granted: 1961-12-12
•
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
2026-10-26 19:29
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/02; B03D1/028; B03D1/14; B03D1/1443; B03D1/1462; B03D1/1475; B03D1/1493; B03D1/24; B03D1/247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
FLOTATION APPARATUS COMPRISING A VERTICAL RIGIDWALLED LATERALLY DIVERGING CONDUIT FLOTATION CELL HAVING A SUBSTANTIALLY CENTRALLY POSITIONED BOTTOM INLET, SAID DIVERGING CONDUIT DIVERGING WITH INCREASING ELEVATION, A SUBSTANTIALLY VERTICAL INFLOW CONDUIT CONNECTED TO THE BOTTOM INLET OF SAID FLOTATION CELL TO INTRODUCE A VERTICALLY UPWARDLY DIRECTED STREAM OF FLUID INTO THE CELL, AN OUTFLOW CONDUIT CONNECTED TO A LOWER PORTION OF SAID FLOTATION CELL FOR WITHDRAWING ALL NON-FROTH MATERIAL FROM SAID CELL, AND TWO OVERFLOW MEANS AT SUBSTANTIALLY THE SAME ELEVATION ADJACENT THE UPPER END OF SAID FLOTATION CELL, SAID TWO OVERFLOW MEANS BEING POSITIONED SUBSTANTIALLY OPPOSITE TO EACH OTHER, EACH OF SAID OVERFLOW MEANS INCLUDING A WEIR HAVING A SUBSTANTIALLY HORIZONTAL OVER-
Claim 2
Dependent Claim
112 words
FLOTATION APPARATUS COMPRISING A VERTICAL RIGIDWALLED LATERALLY DIVERGING CONDUIT FLOTATION CELL HAVING A SUBSTANTIALLY CENTRALLY POSITIONED BOTTOM INLET, SAID DIVERGING CONDUIT DIVERGING WITH INCREASING ELEVATION, A SUBSTANTIALLY VERTICAL INFLOW CONDUIT CONNECTED TO THE BOTTOM INLET OF SAID FLOTATION CELL TO INTRODUCE A VERTICALLY UPWARDLY DIRECTED STREAM OF FLUID INTO THE CELL, AN OUTFLOW CONDUIT CONNECTED TO A LOWER PORTION OF SAID FLOTATION CELL FOR WITHDRAWING ALL NON-FROTH MATERIAL FROM SAID CELL, AND TWO OVERFLOW MEANS AT SUBSTANTIALLY THE SAME ELEVATION ADJACENT THE UPPER END OF SAID FLOTATION CELL, SAID TWO OVERFLOW MEANS BEING POSITIONED SUBSTANTIALLY OPPOSITE TO EACH OTHER, EACH OF SAID OVERFLOW MEANS INCLUDING A WEIR HAVING A SUBSTANTIALLY HORIZONTAL OVER-
References Cited (Backward Citations)
US2733809A
Cited
FR602202A
Cited
US1732893A
Cited
US2142207A
Cited
US2324018A
Cited
US2922521A
Cited
US2931502A
Cited
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 |