US3205543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for cooling foundry sand on a vibratory conveyor
Assignee: Rex Chainbelt Inc
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Filing: 1963-05-27
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Granted: 1965-09-14
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Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 John M Morris
- 👤 Robley W Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:46
CPC Classifications
B; B22; B22C; B22C5/00; B22C5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS FOR COOLING FOUNDRY SAND UPON DISCHARGE FROM A MOLD, COMPRISING, COVEYING THE SAND ON A VIBRATORY CONVEYOR OVER A SERIES OF PORTIONS OF A PERFORATED CONVEYING DECK, BLOWING AIR AT GENERALLY ATMOSPHERIC TEMPERATURE UPWARDLY THROUGH A FIRST PORTION OF THE PERFORATED DECK AT A SUBSTANTIAL VELOCITY TO COOL THE SAND BY CONDUCTION AND EVAPORATION OF THE MOISTURE FROM THE SAND, BLOWING AIR AT A REDUCED VELOCITY THROUGH A SECOND PORTION OF SAID CONVEYOR DECK AND THE PARTIALY COOLED AND DRIED SAND WHILE INTRODUCING WATER IN DROPLET FORM
Claim 2
Dependent Claim
89 words
A PROCESS FOR COOLING FOUNDRY SAND UPON DISCHARGE FROM A MOLD, COMPRISING, COVEYING THE SAND ON A VIBRATORY CONVEYOR OVER A SERIES OF PORTIONS OF A PERFORATED CONVEYING DECK, BLOWING AIR AT GENERALLY ATMOSPHERIC TEMPERATURE UPWARDLY THROUGH A FIRST PORTION OF THE PERFORATED DECK AT A SUBSTANTIAL VELOCITY TO COOL THE SAND BY CONDUCTION AND EVAPORATION OF THE MOISTURE FROM THE SAND, BLOWING AIR AT A REDUCED VELOCITY THROUGH A SECOND PORTION OF SAID CONVEYOR DECK AND THE PARTIALY COOLED AND DRIED SAND WHILE INTRODUCING WATER IN DROPLET FORM
References Cited (Backward Citations)
US2778076A
Cited
US2863190A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |