US3208253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of rolling mill lubricant
Assignee: United States Steel Corp
•
Filing: 1963-05-10
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Granted: 1965-09-28
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Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 William L Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:10
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/02; B21B45/0239; B21B45/0245; B21B45/0248; B21B45/0251; B21B27/00; B21B27/06; B21B27/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A ROLLING-MILL STAND HAVING MEANS ADAPTED TO APPLY ROLLING LUBRICANT IN SEQUENTIAL TIMING IN RELATION TO WORKPIECE ROLL ENTRY, SAID MEANS COMPRISING MEANS FOR ROLLING LUBRICANT APPLICATION, MEANS ADAPTED TO PRODUCE A SIGNAL UPON ENTRY OF A WORKPIECE INTO THE ROLLS, AND ON-OFF FLOW CONTROL MEAN FOR SAID LUBRICANT ADAPTED TO OPERATE RESPONSIVELY TO SAID SIGNAL MEANS, WHEREBY LUBRICANT APPLICATION IS CAUSED TO COMMENCE SUBSTANTIALLY SIMULTANEOUSLY WITH SAID WORKPIECE HAVING ENTERED THE BITE OF SAID ROLLS.
Claim 2
Dependent Claim
76 words
A ROLLING-MILL STAND HAVING MEANS ADAPTED TO APPLY ROLLING LUBRICANT IN SEQUENTIAL TIMING IN RELATION TO WORKPIECE ROLL ENTRY, SAID MEANS COMPRISING MEANS FOR ROLLING LUBRICANT APPLICATION, MEANS ADAPTED TO PRODUCE A SIGNAL UPON ENTRY OF A WORKPIECE INTO THE ROLLS, AND ON-OFF FLOW CONTROL MEAN FOR SAID LUBRICANT ADAPTED TO OPERATE RESPONSIVELY TO SAID SIGNAL MEANS, WHEREBY LUBRICANT APPLICATION IS CAUSED TO COMMENCE SUBSTANTIALLY SIMULTANEOUSLY WITH SAID WORKPIECE HAVING ENTERED THE BITE OF SAID ROLLS.
References Cited (Backward Citations)
US1978894A
Cited
US2272368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |