Patent US3345841A successfully refreshed from Google Patents.
US3345841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot strip rolling mill
Assignee: ChampionX LLC
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Filing: 1965-08-23
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Granted: 1967-10-10
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Expires: 1985-08-23
Abstract
No abstract record available.
Inventors
- 👤 John E Phelan
- 👤 John T Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:26
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/04; B21B45/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A METHOD FOR IMPROVING THE OPERATIONAL EFFICIENCY OF A HOT STRIP STEEL ROLLING MILL OF THE TYPE HAVING AT LEAST ONE ROUGHING SCALE BREAKER, AT LEAST ONE ROUGHING STAND, AND A PLURALITY OF FINISHING STANDS, SAID HOT STRIP ROLLING MILL ALSO HAVING A PLURALITY OF HIGH PRESSURE HYDRAULIC SPRAY NOZZLES ASSOCIATED WITH ONE OR MORE OF THE ABOVE DESCRIBED PIECES OF EQUIPMENT FOR REMOVING SCALE FROM THE STEEL WORKPIECE BEING ROLLED THERETHROUGH BY MEANS OF HIGH PRESSURE WATER BEING FORCIBLY DIRECTED AT THE SCALE FORMED ON THE SURFACES OF THE STEEL WORKPIECE AND COLLECTING MEANS FOR REMOVING THE SCALE CONTAMINATED WATER FROM THE SITUS OF THE ROLLING OPERATION FOR PURPOSES OF REUSE IN THE OPERATION OF THE HIGH PRESSURE HYDRAULIC SPRAY NOZZLES, THE IMPROVEMENT WHICH COMPRISES CONTINUALLY MAINTAINING THE NOZZLE PRESSURE IN THE HIGH PRESSURE HYDRAULIC SPRAY NOZZLES BY THE EXPEDIENT OF REMOVING FOR-
Claim 2
Independent Claim
144 words
A METHOD FOR IMPROVING THE OPERATIONAL EFFICIENCY OF A HOT STRIP STEEL ROLLING MILL OF THE TYPE HAVING AT LEAST ONE ROUGHING SCALE BREAKER, AT LEAST ONE ROUGHING STAND, AND A PLURALITY OF FINISHING STANDS, SAID HOT STRIP ROLLING MILL ALSO HAVING A PLURALITY OF HIGH PRESSURE HYDRAULIC SPRAY NOZZLES ASSOCIATED WITH ONE OR MORE OF THE ABOVE DESCRIBED PIECES OF EQUIPMENT FOR REMOVING SCALE FROM THE STEEL WORKPIECE BEING ROLLED THERETHROUGH BY MEANS OF HIGH PRESSURE WATER BEING FORCIBLY DIRECTED AT THE SCALE FORMED ON THE SURFACES OF THE STEEL WORKPIECE AND COLLECTING MEANS FOR REMOVING THE SCALE CONTAMINATED WATER FROM THE SITUS OF THE ROLLING OPERATION FOR PURPOSES OF REUSE IN THE OPERATION OF THE HIGH PRESSURE HYDRAULIC SPRAY NOZZLES, THE IMPROVEMENT WHICH COMPRISES CONTINUALLY MAINTAINING THE NOZZLE PRESSURE IN THE HIGH PRESSURE HYDRAULIC SPRAY NOZZLES BY THE EXPEDIENT OF REMOVING FOR-
References Cited (Backward Citations)
US2163699A
Cited
US3085916A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |