US2686135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot dip plating method and apparatus
Assignee: National Steel Corp
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Filing: 1949-01-24
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Granted: 1954-08-10
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Expires: 1969-01-24
Abstract
No abstract record available.
Inventors
- 👤 John E Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:33
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN THE HOT PRESSURE OF COATING A METAL SHEET WITH A LAYER OF METAL, THE STEPS COMPRISING, PASSING SUCH A SHEET THROUGH A BATH OF MOLTEN METAL TO COAT THE SHEET AND THEN PASSING THE COATED SHEET UPWARDLY THROUGH A LAYER OF LIQUID ON THE BATH, THE COATING METAL ON THE SHEET IN THE LAYER OF LIQUID BEING MOLTEN AND THE LIQUID BEING A NONSOLVENT FOR THE MOLTEN METAL, AND RAPIDLY VIBRATING THE TRAILING EDGE OF THE SHEET IN THE LIQUID LAYER TO REMOVE EXCESS MOLTEN COATING METAL WHILE THE SHEET IS SUSPENDED WITH ITS TRAILING EDGE FREE TO VIBRATE IN THE LAYER OF LIQUID.
Claim 2
Dependent Claim
105 words
IN THE HOT PRESSURE OF COATING A METAL SHEET WITH A LAYER OF METAL, THE STEPS COMPRISING, PASSING SUCH A SHEET THROUGH A BATH OF MOLTEN METAL TO COAT THE SHEET AND THEN PASSING THE COATED SHEET UPWARDLY THROUGH A LAYER OF LIQUID ON THE BATH, THE COATING METAL ON THE SHEET IN THE LAYER OF LIQUID BEING MOLTEN AND THE LIQUID BEING A NONSOLVENT FOR THE MOLTEN METAL, AND RAPIDLY VIBRATING THE TRAILING EDGE OF THE SHEET IN THE LIQUID LAYER TO REMOVE EXCESS MOLTEN COATING METAL WHILE THE SHEET IS SUSPENDED WITH ITS TRAILING EDGE FREE TO VIBRATE IN THE LAYER OF LIQUID.
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) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |