Patent US2918273A successfully refreshed from Google Patents.
Patent US3240313A successfully refreshed from Google Patents.
US3240313A
Expired / Lapsed
US
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Dual auger conveyor
Assignee: Individual
•
Filing: 1963-10-23
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Granted: 1966-03-15
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Expires: 1983-10-23
Abstract
No abstract record available.
Inventors
- 👤 Blattner Emma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:08
CPC Classifications
B; B01; B01F; B01F33/00; B01F33/50; B01F33/502; A; A01; A01D; A01D90/00; A01D90/10; A01D90/105; B01F33/5023; B65; B65G; B65G33/00; B65G33/08; B65G33/14; B65G33/18; B01F27/00; B01F27/05; B01F27/11; B01F27/114; B01F27/23; B01F27/232; B01F27/2321; B65G2201/00; B65G2201/04; B65G2201/042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
MATERIAL HANDLING APPARATUS COMPRISING A HOPPER BODY HAVING DOWNWARDLY CONVERGING SIDE WALLS IN COMMUNICATION WITH AN UPWARDLY OPEN SEMI-CYLINDRICAL AUGER HOUSING, A HOLLOW CYLINDRICAL HOUSING EXTENDING OUTWRADLY OF SAID BODY AND COAXIAL WITH AND COMMUNICATING WITH THE SAID SEMI-CYLINDRICAL HOUSING, AN INNER AUGER ROTATABLY MOUNTED WITHIN THE SAID SEMI-CYLINDRICAL HOUSING, AN OUTER AUGER ROTATABLY MOUNTED WITHIN THE SAID SEMI-CYLINDRICAL HOUSING COAXIALLY WITH AND CONCENTRIC TO SAID INNER AUGER, DISCHARGE CONVEYING MEANS CONNECTED TO THE SAID OUTER CYLINDRICAL HOUSING, AND MEANS FOR SLECTIVELY ENGAGING SAID OUTER AUGER FOR ROTATION WITH SAID INNER AUGER.
Claim 2
Dependent Claim
92 words
MATERIAL HANDLING APPARATUS COMPRISING A HOPPER BODY HAVING DOWNWARDLY CONVERGING SIDE WALLS IN COMMUNICATION WITH AN UPWARDLY OPEN SEMI-CYLINDRICAL AUGER HOUSING, A HOLLOW CYLINDRICAL HOUSING EXTENDING OUTWRADLY OF SAID BODY AND COAXIAL WITH AND COMMUNICATING WITH THE SAID SEMI-CYLINDRICAL HOUSING, AN INNER AUGER ROTATABLY MOUNTED WITHIN THE SAID SEMI-CYLINDRICAL HOUSING, AN OUTER AUGER ROTATABLY MOUNTED WITHIN THE SAID SEMI-CYLINDRICAL HOUSING COAXIALLY WITH AND CONCENTRIC TO SAID INNER AUGER, DISCHARGE CONVEYING MEANS CONNECTED TO THE SAID OUTER CYLINDRICAL HOUSING, AND MEANS FOR SLECTIVELY ENGAGING SAID OUTER AUGER FOR ROTATION WITH SAID INNER AUGER.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |