Patent US2552378A successfully refreshed from Google Patents.
US2552378A
Expired / Lapsed
US
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Method and means for selective media separation
Assignee: Individual
•
Filing: 1945-11-23
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Granted: 1951-05-08
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Expires: 1965-11-23
Abstract
No abstract record available.
Inventors
- 👤 Harry L Mcneill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:07
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/28; B03B5/30; B03B5/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN ORE TREATING APPARATUS, A TANK, INCLUDING AN UPRIGHT CIRCULAR WALL PORTION, AN UPPER FLOAT PRODUCT OUTLET, AND A BOTTOM PROVIDED WITH A CENTRAL SINK PRODUCT OUTLET, A ROTARY, MASSIVE IMPELLER HAVING AN UPRIGHT SURFACE DEFINING WITH SAID WALL PORTION A RELATIVELY NARROW, ANNULAR ZONE AND DEFINING WITH SAID BOTTOM A SUBSTANTIALLY CYLINDRICAL ZONE FOR A CROWDING DISCHARGE MOVEMENT OF SINK PRODUC TO SAID BOTTOM OUTLET, SAID BOTTOM OUTLET BEING SPACED IN A HORIZONTAL PLANE A SUBSTANTIAL DISTANCE INWARDLY FROM SAID ANNULAR ZONE, MEANS ADJUSTABLE DURING ROTATION OF SAID IMPELLER FOR VARYING THE DISCHARGE THROUGH SAID BOTTOM OUTLET, AND MEANS FOR AGITATING THE SINK PRODUCT DURING ITS PROGRESS THROUGH SAID CYLINDRICAL ZONE.
Claim 2
Dependent Claim
112 words
IN ORE TREATING APPARATUS, A TANK, INCLUDING AN UPRIGHT CIRCULAR WALL PORTION, AN UPPER FLOAT PRODUCT OUTLET, AND A BOTTOM PROVIDED WITH A CENTRAL SINK PRODUCT OUTLET, A ROTARY, MASSIVE IMPELLER HAVING AN UPRIGHT SURFACE DEFINING WITH SAID WALL PORTION A RELATIVELY NARROW, ANNULAR ZONE AND DEFINING WITH SAID BOTTOM A SUBSTANTIALLY CYLINDRICAL ZONE FOR A CROWDING DISCHARGE MOVEMENT OF SINK PRODUC TO SAID BOTTOM OUTLET, SAID BOTTOM OUTLET BEING SPACED IN A HORIZONTAL PLANE A SUBSTANTIAL DISTANCE INWARDLY FROM SAID ANNULAR ZONE, MEANS ADJUSTABLE DURING ROTATION OF SAID IMPELLER FOR VARYING THE DISCHARGE THROUGH SAID BOTTOM OUTLET, AND MEANS FOR AGITATING THE SINK PRODUCT DURING ITS PROGRESS THROUGH SAID CYLINDRICAL ZONE.
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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) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |