Patent US2700624A successfully refreshed from Google Patents.
US2700624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for fluxing steel rings
Assignee: Campbell Wyant and Cannon Foundry Co
•
Filing: 1950-08-11
•
Granted: 1955-01-25
•
Expires: 1970-08-11
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Wagner
- 👤 Albert D Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:45
CPC Classifications
B; B22; B22D; B22D19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
THE METHOD OF PREPARING FLANGED METALLIC RINGS FOR THE RECEIPT OF A MOLTEN METAL LINING WHICH CONSISTS IN THE STEPS OF DEPOSITING IN EACH RING A MEASURED QUANTITY OF LIQUID FLUX, CONTINUOUSLY ROTATING SAID RING WHILE CAUSING IT TO TRAVEL, SUBSTANTIALLY IMMEDIATELY THEREAFTER, THROUGH A PREHEATING FLUXING-VAPORIZING CHAMBER, HEATING SAID RING DURING ITS ROTATION AND TRAVEL THROUGH SAID VAPORIZING CHAMBER TO A TEMPERATURE SUFFICIENT ONLY TO VAPORIZE THE LIQUID IN SAID FLUIX, CONTINUING THE ROTATION AND TRAVEL OF SAID RING THROUGH SAID VAPORIZING CHAMBER UNTIL THE INNER PERIPHERY OF SAID RING IS COATED WITH A GENERALLY-UNIFORM LAYER OF SOLID FLUX MATERIAL, THEN WHILE CONTINUING THE ROTATION OF SAID RING, CAUSING IT TO CONTINUE ITS TRAVEL INTO AND THROUGH A HEATING CHAMBER, HEATING SAID RING DURING ITS ROTATION AND TRAVEL THROUGH SAID HEATING CHAMBER TO A TEMPERATURE ABOVE THE CASTING TEMPERATURE, THEN RELEASING SAID RING FROM SAID HEATING CHAMBER AND CAUSING IT TO MOVE RAPIDLY TO A WORK ZONE AND THERE ARRESTING ITS MOVEMENT.
Claim 2
Independent Claim
163 words
THE METHOD OF PREPARING FLANGED METALLIC RINGS FOR THE RECEIPT OF A MOLTEN METAL LINING WHICH CONSISTS IN THE STEPS OF DEPOSITING IN EACH RING A MEASURED QUANTITY OF LIQUID FLUX, CONTINUOUSLY ROTATING SAID RING WHILE CAUSING IT TO TRAVEL, SUBSTANTIALLY IMMEDIATELY THEREAFTER, THROUGH A PREHEATING FLUXING-VAPORIZING CHAMBER, HEATING SAID RING DURING ITS ROTATION AND TRAVEL THROUGH SAID VAPORIZING CHAMBER TO A TEMPERATURE SUFFICIENT ONLY TO VAPORIZE THE LIQUID IN SAID FLUIX, CONTINUING THE ROTATION AND TRAVEL OF SAID RING THROUGH SAID VAPORIZING CHAMBER UNTIL THE INNER PERIPHERY OF SAID RING IS COATED WITH A GENERALLY-UNIFORM LAYER OF SOLID FLUX MATERIAL, THEN WHILE CONTINUING THE ROTATION OF SAID RING, CAUSING IT TO CONTINUE ITS TRAVEL INTO AND THROUGH A HEATING CHAMBER, HEATING SAID RING DURING ITS ROTATION AND TRAVEL THROUGH SAID HEATING CHAMBER TO A TEMPERATURE ABOVE THE CASTING TEMPERATURE, THEN RELEASING SAID RING FROM SAID HEATING CHAMBER AND CAUSING IT TO MOVE RAPIDLY TO A WORK ZONE AND THERE ARRESTING ITS MOVEMENT.
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) | 1958-01-24 | 1958-07-26 | 1959-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-24 | 1962-07-26 | 1963-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-24 | 1966-07-26 | 1967-01-25 | $7700.00 | Window Closed / Lapsed |