Patent US2717741A successfully refreshed from Google Patents.
US2717741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizontal apparatus and method for disintegrating and classifying dry materials
Assignee: Microcyclomat Co
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Filing: 1953-05-15
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Granted: 1955-09-13
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Expires: 1973-05-15
Abstract
No abstract record available.
Inventors
- 👤 Henry G Lykken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:00
CPC Classifications
B; B02; B02C; B02C13/00; B02C13/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A MILL FOR DISINTEGRATING AND CLASSIFYING DRY SOLID MATERIAL COMPRISING A HORIZONTAL CYLINDRICAL CASING HAVING A PLURALITY OF ALTERNATE GRINDING AND CLASSIFYING ZONES, A LONGITUDINAL INLET TO THE CASING, CLOSURES AT EACH END OF THE CASING, ONE OF SAID CLOSURES HAVING AN ANNULAR OPENING, A ROTOR JOURNALLED FOR ROTATION IN THE CASING AND PROJECTING THROUGH SAID ANNULAR OPENING, A PLURALITY OF ALTERNATING GRINDING MEANS AND CLASSIFYING MEANS DISPOSED LONGITUDINALLY OF SAID ROTOR IN SAID GRINDING AND CLASSIFYING ZONES, AT LEAST ONE PASSAGEWAY IN SAID ROTOR LEADING FROM SAID CLASSIFYING ZONES LONGITUDINALLY, IN DIRECT COMMUNICATION WITH RADIAL FAN PASSAGEWAYS IN THE ROTOR AT THE END THEROF PROJECTING THROUGH THE ANNULAR OPENING, A HOUSING ENCLOSING SAID RADIAL FAN PASSAGEWAYS FORMING A FAN HOUSING, SAID HOUSING BEING SPACED FROM SAID ANNULAR OPENING TO PROVIDE AN AIR INLET TO THE ANNULAR OPENING.
Claim 2
Dependent Claim
138 words
A MILL FOR DISINTEGRATING AND CLASSIFYING DRY SOLID MATERIAL COMPRISING A HORIZONTAL CYLINDRICAL CASING HAVING A PLURALITY OF ALTERNATE GRINDING AND CLASSIFYING ZONES, A LONGITUDINAL INLET TO THE CASING, CLOSURES AT EACH END OF THE CASING, ONE OF SAID CLOSURES HAVING AN ANNULAR OPENING, A ROTOR JOURNALLED FOR ROTATION IN THE CASING AND PROJECTING THROUGH SAID ANNULAR OPENING, A PLURALITY OF ALTERNATING GRINDING MEANS AND CLASSIFYING MEANS DISPOSED LONGITUDINALLY OF SAID ROTOR IN SAID GRINDING AND CLASSIFYING ZONES, AT LEAST ONE PASSAGEWAY IN SAID ROTOR LEADING FROM SAID CLASSIFYING ZONES LONGITUDINALLY, IN DIRECT COMMUNICATION WITH RADIAL FAN PASSAGEWAYS IN THE ROTOR AT THE END THEROF PROJECTING THROUGH THE ANNULAR OPENING, A HOUSING ENCLOSING SAID RADIAL FAN PASSAGEWAYS FORMING A FAN HOUSING, SAID HOUSING BEING SPACED FROM SAID ANNULAR OPENING TO PROVIDE AN AIR INLET TO THE ANNULAR OPENING.
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) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |