US3806366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous pickling of cast rod
Assignee: Southwire Co LLC
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Filing: 1971-01-25
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Granted: 1974-04-23
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Expires: 1991-01-25
Abstract
Abstract A SYSTEM FOR CONTINUOUSLY QUENCH-PICKLING CAST ROD FROM A CONTINUOUS CASTING MACHINE WHEREIN MOLTEN METAL IS POURED INTO A MOLD OF A CASTING DEVICE AND COOLED AND SOLIDIFIED INTO A CONTINUOUS SOLID BAR, THE BAR IS ELONGATED AND REDUCED IN ITS CROSS-SECTIONAL AREA TO FORM CONTINUOUS ROD, AND THE ROD IS ARRANGED IN A COIL. THE SUR- FACE OF THE HOT ROD FROM THE ROLLING MILL IS CONTACTED WITH A PICKLING FLUID, SUCH AS A CITRIC ACID SOLUTION, AFTER THE ROD LEAVES THE ROLLING MILL AND BEFORE THE RODE IS ARRANGED IN A COIL, TO SIMULTANEOUSLY QUENCH AND PICKLE THE ROD.
Inventors
- 👤 D Cofer
- 👤 E Chia
- 👤 J Burnitt
- 👤 T Kaltenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:58
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/04; B21B45/08; C; C21; C21D; C21D1/00; C21D1/56; C21D1/60; C23; C23G; C23G1/00; C23G1/02; C23G1/10; C23G1/103; C23G3/00; C23G3/02; B21B3/00; B21B2003/005; Y; Y10; Y10S; Y10S118/00; Y10S118/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |