Patent US3077309A successfully refreshed from Google Patents.
US3077309A
Expired / Lapsed
US
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Reducing and comminuting apparatus
Assignee: Individual
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Filing: 1961-04-14
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Granted: 1963-02-12
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Expires: 1981-04-14
Abstract
No abstract record available.
Inventors
- 👤 George K Kocher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:23
CPC Classifications
B; B02; B02C; B02C19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
APPARATUS FOR REDUCING AND COMMINUTING PARTICULATE MATERIAL, COMPRISING A CONTAINER, AT LEAST THREE CYLINDRICAL WIRE BRUSHES ROTATABLY MOUNTED WITHIN THE CONTAINER WITH THEIR AXES PARALLEL TO EACH OTHER AND WITH THE CYLINDRICAL SURFACE OF EACH BRUSH DISPOSED ADJACENT TO THAT OF TWO ADJACENT BRUSHES TO FORM A RELATIVELY CONFINED INNER CHAMBER SURROUNDED BY THE BRUSHES, THE INNER WALL OF THE CONTAINER BEING SPACED FROM THE CYLINDRICAL SURFACES OF THE BRUSHES TO PROVIDE AN OUTER ANNULAR CHAMBER SURROUNDING THE BRUSHES, MEANS FOR ROTATING THE BRUSHES AT HIGH SPEED IN THE SAME ROTATIONAL DIRECTION, MEANS FOR CHARGING PARTICULATE MATERIAL INTO ONE OF THE CHAMBERS, AND MEANS FOR WITHDRAWING PARTICULATE MATERIAL FROM ONE OF THE CHAMBERS AFTER SUCH MATERIAL HAS BEEN SUBJECTED TO THE ACTION OF THE BRUSHES.
Claim 2
Dependent Claim
125 words
APPARATUS FOR REDUCING AND COMMINUTING PARTICULATE MATERIAL, COMPRISING A CONTAINER, AT LEAST THREE CYLINDRICAL WIRE BRUSHES ROTATABLY MOUNTED WITHIN THE CONTAINER WITH THEIR AXES PARALLEL TO EACH OTHER AND WITH THE CYLINDRICAL SURFACE OF EACH BRUSH DISPOSED ADJACENT TO THAT OF TWO ADJACENT BRUSHES TO FORM A RELATIVELY CONFINED INNER CHAMBER SURROUNDED BY THE BRUSHES, THE INNER WALL OF THE CONTAINER BEING SPACED FROM THE CYLINDRICAL SURFACES OF THE BRUSHES TO PROVIDE AN OUTER ANNULAR CHAMBER SURROUNDING THE BRUSHES, MEANS FOR ROTATING THE BRUSHES AT HIGH SPEED IN THE SAME ROTATIONAL DIRECTION, MEANS FOR CHARGING PARTICULATE MATERIAL INTO ONE OF THE CHAMBERS, AND MEANS FOR WITHDRAWING PARTICULATE MATERIAL FROM ONE OF THE CHAMBERS AFTER SUCH MATERIAL HAS BEEN SUBJECTED TO THE ACTION OF THE BRUSHES.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |