Patent US3211434A successfully refreshed from Google Patents.
US3211434A
Expired / Lapsed
US
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Mixing apparatus
Assignee: George Tweedy and Co Ltd
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Filing: 1963-11-12
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Granted: 1965-10-12
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Pickles Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:01
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/80; B01F27/82; A; A47; A47J; A47J43/00; A47J43/04; A47J43/07; A47J43/0716; A47J43/0722; B02; B02C; B02C13/00; B02C13/26; B02C13/28; B02C13/2804
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A ROTOR FOR MIXING PULVERISING OR LIKE MACHINES COMPRISING AN IMPERFORATE PLATE ADAPTED FOR ROTATION ABOUT A VERTICAL AXIS PASSING SUBSTANTIALLY THROUGH THE CENTRE OF THE PLATE AND AT RIGHT ANGLES THERETO, SAID PLATE HAVING A PLURALITY OF RADIALLY DISPOSED BLADES PROJECTING AT RIGHT ANGLES FROM THE UNDERSIDE OF SAID PLATE, EACH OF SAID BLADES EXTENDING BEYOND THE PERIPHERY OF SAID PLATE, AN UPSTANDING COLUMN CENTRAL ON SAID PLATE AND A SCROLL BLADE PROJECTING FROM SAID COLUMN SAID SCROLL BLADE HAVING AT LEAST ONE PORTION INCLINED DOWNWARDLY AND REARWARDLY RELATIVELY TO THE DIRECTION OF ROTATION OF SAID ROTOR.
Claim 2
Dependent Claim
98 words
A ROTOR FOR MIXING PULVERISING OR LIKE MACHINES COMPRISING AN IMPERFORATE PLATE ADAPTED FOR ROTATION ABOUT A VERTICAL AXIS PASSING SUBSTANTIALLY THROUGH THE CENTRE OF THE PLATE AND AT RIGHT ANGLES THERETO, SAID PLATE HAVING A PLURALITY OF RADIALLY DISPOSED BLADES PROJECTING AT RIGHT ANGLES FROM THE UNDERSIDE OF SAID PLATE, EACH OF SAID BLADES EXTENDING BEYOND THE PERIPHERY OF SAID PLATE, AN UPSTANDING COLUMN CENTRAL ON SAID PLATE AND A SCROLL BLADE PROJECTING FROM SAID COLUMN SAID SCROLL BLADE HAVING AT LEAST ONE PORTION INCLINED DOWNWARDLY AND REARWARDLY RELATIVELY TO THE DIRECTION OF ROTATION OF SAID ROTOR.
References Cited (Backward Citations)
US2140866A
Cited
DE824333C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |