US2933425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip heating
Assignee: Selas Corp of America
•
Filing: 1957-02-26
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Granted: 1960-04-19
•
Expires: 1977-02-26
Abstract
No abstract record available.
Inventors
- 👤 Frederic O Hess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:08
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/04; C23C2/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE METHOD OF HEATING CONTINUOUSLY BRIGHT TIN PLATE STRIP METAL WHICH COMPRISES MOVING THE STRIP THROUGH A PATH, APPLYING RADIANT HEAT TO OPPOSITE SIDES OF THE STRIP RAISE ITS TEMPERATURE TO A DEGREE SLIGHTLY BELOW THE TEMPERATURE AT WHICH TIN MELTS, AND DISCHARGING SUPERHEATED STEAM AT HIGH VELOCITY IN A SHEET AGAINST OPPOSITE SIDES OF THE STRIP AT A FIXED LINE ACROSS THE STRIP AT A LOCATION IN SAID PATH BEYOND THE POINT AT WHICH THE RADIANT HEAT HAS BEEN APPLIED THERETO, AND BEFORE ANY APPRECIABLE LOSS OF THE RADIANT HEAT FROM THE STRIP CAN TAKE PLACE, TO BRING THE STRIP TO A TEMPERATURE ABOVE THE MELTING POINT OF TIN.
Claim 2
Independent Claim
110 words
THE METHOD OF HEATING CONTINUOUSLY BRIGHT TIN PLATE STRIP METAL WHICH COMPRISES MOVING THE STRIP THROUGH A PATH, APPLYING RADIANT HEAT TO OPPOSITE SIDES OF THE STRIP RAISE ITS TEMPERATURE TO A DEGREE SLIGHTLY BELOW THE TEMPERATURE AT WHICH TIN MELTS, AND DISCHARGING SUPERHEATED STEAM AT HIGH VELOCITY IN A SHEET AGAINST OPPOSITE SIDES OF THE STRIP AT A FIXED LINE ACROSS THE STRIP AT A LOCATION IN SAID PATH BEYOND THE POINT AT WHICH THE RADIANT HEAT HAS BEEN APPLIED THERETO, AND BEFORE ANY APPRECIABLE LOSS OF THE RADIANT HEAT FROM THE STRIP CAN TAKE PLACE, TO BRING THE STRIP TO A TEMPERATURE ABOVE THE MELTING POINT OF TIN.
References Cited (Backward Citations)
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Cited
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Cited
US2420377A
Cited
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Cited
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Cited
US2725929A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |