US3012670A
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
2026-11-01 16:50
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/24; B03D1/02; B03D1/028; B03D1/1412
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
FLOTATION APPARATUS COMPRISING IN COMBINATION A SUBSTANTIALLY VERTICAL INFLOW CONDUIT FOR CONTAINING A FLOWING STREAM OF A MINERAL FEED IN THE FORM OF AN AQUEOUS PULP, AN UPWARDLY EXTENDING LATERALLY DIVERGING CONDUIT OF RECTANGULAR HORIZONTAL CROSS SECTION HAVING A SUBSTANTIALLY VERTICAL AXIS IN SUBSTANTIAL ALIGNMENT WITH THE VERTICAL AXIS OF SAID INFLOW CONDUIT AND HAVING A BOTTOM INLET CONNECTED TO SAID INFLOW CONDUIT ADJACENT THE OUTFLOW END THEREOF, A FROTH BOX AT THE UPPER PORTION OF SAID DIVERGING CONDUIT FOR RECEIVING MATERIAL FROM SAID DIVERGING CONDUIT, AND AN INVERTED SOLID WALLED PYRAMID DISPOSED WITHIN SAID DIVERGING CONDUIT IN A LOWER PORTION THEREOF AND A SOLID WALLED UPRIGHT PYRAMID DISPOSED WITHIN SAID DIVERGING CONDUIT ABOVE SAID INVERTED AND ADJACENT THE LOWER END OF SAID DIVERGING CONDUIT, SAID PYRAMIDS HAVING SUBSTANTIALLY VERTICAL AXES IN SUBSTANTIAL ALIGNMENT WITH THE VERTICAL AXIS OF THE INFLOW CONDUIT, SAID PYRAMIDS ACTING UPON THE FLOWING STREAM TO ESTABLISH A DIVERGING FLOW PATTERN WITHIN SAID DIVERGING CONDUIT DOWNSTREAM OF THE OUTFLOW END OF THE INFLOW CONDUIT AND CONTROL THE PRESSURE AND VELOCITY RELATIONSHIPS IN THE FLOWING STREAM.
Claim 2
Dependent Claim
179 words
FLOTATION APPARATUS COMPRISING IN COMBINATION A SUBSTANTIALLY VERTICAL INFLOW CONDUIT FOR CONTAINING A FLOWING STREAM OF A MINERAL FEED IN THE FORM OF AN AQUEOUS PULP, AN UPWARDLY EXTENDING LATERALLY DIVERGING CONDUIT OF RECTANGULAR HORIZONTAL CROSS SECTION HAVING A SUBSTANTIALLY VERTICAL AXIS IN SUBSTANTIAL ALIGNMENT WITH THE VERTICAL AXIS OF SAID INFLOW CONDUIT AND HAVING A BOTTOM INLET CONNECTED TO SAID INFLOW CONDUIT ADJACENT THE OUTFLOW END THEREOF, A FROTH BOX AT THE UPPER PORTION OF SAID DIVERGING CONDUIT FOR RECEIVING MATERIAL FROM SAID DIVERGING CONDUIT, AND AN INVERTED SOLID WALLED PYRAMID DISPOSED WITHIN SAID DIVERGING CONDUIT IN A LOWER PORTION THEREOF AND A SOLID WALLED UPRIGHT PYRAMID DISPOSED WITHIN SAID DIVERGING CONDUIT ABOVE SAID INVERTED AND ADJACENT THE LOWER END OF SAID DIVERGING CONDUIT, SAID PYRAMIDS HAVING SUBSTANTIALLY VERTICAL AXES IN SUBSTANTIAL ALIGNMENT WITH THE VERTICAL AXIS OF THE INFLOW CONDUIT, SAID PYRAMIDS ACTING UPON THE FLOWING STREAM TO ESTABLISH A DIVERGING FLOW PATTERN WITHIN SAID DIVERGING CONDUIT DOWNSTREAM OF THE OUTFLOW END OF THE INFLOW CONDUIT AND CONTROL THE PRESSURE AND VELOCITY RELATIONSHIPS IN THE FLOWING STREAM.
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 |