Patent US3891034A successfully refreshed from Google Patents.
Patent US3226164A successfully refreshed from Google Patents.
US3226164A
Expired / Lapsed
US
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Air-flo unloader
Assignee: Individual
•
Filing: 1964-03-12
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Granted: 1965-12-28
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Expires: 1984-03-12
Abstract
No abstract record available.
Inventors
- 👤 Wallace N Merrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:13
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/12; A47J37/1214; A22; A22C; A22C29/00; B; B65; B65G; B65G69/00; B65G2201/00; B65G2201/02; B65G2201/0202; B65G2201/0211; B65G2814/00; B65G2814/02; B65G2814/0205; B65G69/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
AN ARTICLE CONVEYOR COMPRISING AN OPEN BOTTOM HOUSIING, A WALL EXTENDING ACROSS AND WITHIN SAID HOUSING, A BOTTOM EXTENDING FROM ONE END OF SAID HOUSING TO SAID WALL LEAVING AN OPENING IN THE BOTTOM OF SAID HOUSING BETWEEN THE OTHER END THEREOF AND SAID WALL, DRIVEN SUCTION PRODUCING MEANS MOUNTED ON SAID BOTTOM AND CONNECTED TO AND THROUGH SAID WALL FOR DRAWING AIR THERETHROUGH, A FLEXIBLE HOSE CONNECTED TO SAID HOUSING BETWEEN SAID WALL AND THE OTHER END OF SAID HOUSING, AN OPEN TOP TANK HAVING SAID HOUSING MOUNTED THEREON, MEANS FOR SUPPLYING A LIQUID TO SAID TANK UP TO AND CLOSING OFF SAID HOUSING BOTTOM OPENING AND A DRIVEN ENDLESS BELT MOUNTED IN SAID TANK AND EXTENDING FROM BENEATH SAID HOUSING BOTTOM OPENING TO AND BEYOND SAID TANK OPEN TOP.
Claim 2
Dependent Claim
131 words
AN ARTICLE CONVEYOR COMPRISING AN OPEN BOTTOM HOUSIING, A WALL EXTENDING ACROSS AND WITHIN SAID HOUSING, A BOTTOM EXTENDING FROM ONE END OF SAID HOUSING TO SAID WALL LEAVING AN OPENING IN THE BOTTOM OF SAID HOUSING BETWEEN THE OTHER END THEREOF AND SAID WALL, DRIVEN SUCTION PRODUCING MEANS MOUNTED ON SAID BOTTOM AND CONNECTED TO AND THROUGH SAID WALL FOR DRAWING AIR THERETHROUGH, A FLEXIBLE HOSE CONNECTED TO SAID HOUSING BETWEEN SAID WALL AND THE OTHER END OF SAID HOUSING, AN OPEN TOP TANK HAVING SAID HOUSING MOUNTED THEREON, MEANS FOR SUPPLYING A LIQUID TO SAID TANK UP TO AND CLOSING OFF SAID HOUSING BOTTOM OPENING AND A DRIVEN ENDLESS BELT MOUNTED IN SAID TANK AND EXTENDING FROM BENEATH SAID HOUSING BOTTOM OPENING TO AND BEYOND SAID TANK OPEN TOP.
References Cited (Backward Citations)
US1231778A
Cited
US2366763A
Cited
US2666671A
Cited
US2744792A
Cited
US3053265A
Cited
US2997345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |