Patent US2566468A successfully refreshed from Google Patents.
US2566468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating electrolytic coatings
Assignee: United States Steel Corp
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Filing: 1947-03-07
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Granted: 1951-09-04
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Expires: 1967-03-07
Abstract
No abstract record available.
Inventors
- 👤 Ewart S Taylerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:45
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/48; C25D5/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
THE METHOD OF TREATING STEEL STRIP HAVING A COATING OF TIN ELECTRODEPOSITED THEREON IN WHICH THE STRIP WHILE IN MOTION AS A STRAND IS HEATED TO THE MELTING POINT OF THE COATING BY PASSING A CONTROLLED ELECTRIC CURRENT THERETHROUGH, CHARACTERIZED BY PASSING SAID STRIP DURING SAID HEATING BY SAID CURRENT THROUGH A SHIELD OF A HEAT CONDUCTING MATERIAL AROUND SAID TRIP, IMPARTING HEAT TO THE OUTER SURFACE OF SAID SHIELD, CONTROLLING THE AMOUNT OF HEAT IMPARTED TO SAID SHIELD INDEPENDENTLY OF SAID CONTROLLED ELECTRIC CURRENT THROUGH SAID STRIP TO MAINTAIN SAID SHIELD AT A TEMPERATURE APPROACHING BUT BELOW THE MELTING POINT OF TIN WHEREBY A UNIFORM MELTING OF THE TIN COATING ACROSS THE WIDTH OF THE STRIP IS ACHIEVED AND CONTROL OF SAID MELTING REMAINS IN THE AFOREMENTIONED CONTROLLED CURRENT, AND QUENCHING THE STRIP IMMEDIATELY AFTER THE TIN COATING BECOMES MOLTEN.
Claim 2
Independent Claim
141 words
THE METHOD OF TREATING STEEL STRIP HAVING A COATING OF TIN ELECTRODEPOSITED THEREON IN WHICH THE STRIP WHILE IN MOTION AS A STRAND IS HEATED TO THE MELTING POINT OF THE COATING BY PASSING A CONTROLLED ELECTRIC CURRENT THERETHROUGH, CHARACTERIZED BY PASSING SAID STRIP DURING SAID HEATING BY SAID CURRENT THROUGH A SHIELD OF A HEAT CONDUCTING MATERIAL AROUND SAID TRIP, IMPARTING HEAT TO THE OUTER SURFACE OF SAID SHIELD, CONTROLLING THE AMOUNT OF HEAT IMPARTED TO SAID SHIELD INDEPENDENTLY OF SAID CONTROLLED ELECTRIC CURRENT THROUGH SAID STRIP TO MAINTAIN SAID SHIELD AT A TEMPERATURE APPROACHING BUT BELOW THE MELTING POINT OF TIN WHEREBY A UNIFORM MELTING OF THE TIN COATING ACROSS THE WIDTH OF THE STRIP IS ACHIEVED AND CONTROL OF SAID MELTING REMAINS IN THE AFOREMENTIONED CONTROLLED CURRENT, AND QUENCHING THE STRIP IMMEDIATELY AFTER THE TIN COATING BECOMES MOLTEN.
References Cited (Backward Citations)
GB258633A
Cited
US482879A
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US496208A
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US1495175A
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US1799102A
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US2085543A
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FR807170A
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GB458940A
Cited
US2357126A
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US2418087A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |