US3304588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for conditioning granular material using rotating spokes and aerating cleats
Assignee: National Engineering Co
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Filing: 1965-03-18
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Granted: 1967-02-21
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Expires: 1985-03-18
Abstract
No abstract record available.
Inventors
- 👤 Robert L Mcilvaine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:56
CPC Classifications
B; B22; B22C; B22C5/00; B22C5/04; B22C5/0409; B22C5/0422
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
APPARATUS FOR CONDITIONING GRANULAR MATERIAL AND THE LIKE COMPRISING A MIXING CHAMBER HAVING A BOTTOM WALL AND AN UPSTANDING SIDEWALL, A MIXING HEAD ASSEMBLY MOUNTED IN SAID CHAMBER FOR ROTATION ABOUT A CENTRAL AXIS, SAID HEAD ASSEMBLY INCLUDING SHAFT MEANS EXTENDING OUTWARDLY FROM SAID CENTRAL AXIS AND SPACED ABOVE SAID BOTTOM WALL, AND A MATERIAL AERATING STRUCTURE JOURNALED FOR ROATION ON SAID SHAFT MEANS, SAID STRUCTURE INCLUDING SPOKES EXTENDING OUTWARDLY ROM SAID SHAAFT MEANS AND A PLURALITY OF AERATING CLEATS CARRIED BY SAID SPOKES ADJACENT THE OUTER ENDS THEREOF, SAID CLEATS DISPOSED TO EXTEND
Claim 2
Dependent Claim
94 words
APPARATUS FOR CONDITIONING GRANULAR MATERIAL AND THE LIKE COMPRISING A MIXING CHAMBER HAVING A BOTTOM WALL AND AN UPSTANDING SIDEWALL, A MIXING HEAD ASSEMBLY MOUNTED IN SAID CHAMBER FOR ROTATION ABOUT A CENTRAL AXIS, SAID HEAD ASSEMBLY INCLUDING SHAFT MEANS EXTENDING OUTWARDLY FROM SAID CENTRAL AXIS AND SPACED ABOVE SAID BOTTOM WALL, AND A MATERIAL AERATING STRUCTURE JOURNALED FOR ROATION ON SAID SHAFT MEANS, SAID STRUCTURE INCLUDING SPOKES EXTENDING OUTWARDLY ROM SAID SHAAFT MEANS AND A PLURALITY OF AERATING CLEATS CARRIED BY SAID SPOKES ADJACENT THE OUTER ENDS THEREOF, SAID CLEATS DISPOSED TO EXTEND
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |