Patent US3363441A successfully refreshed from Google Patents.
US3363441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed control system for edger and other rolls in a reduction rolling mill
Assignee: Westinghouse Electric Corp
•
Filing: 1965-09-28
•
Granted: 1968-01-16
•
Expires: 1985-09-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Andrew W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:11
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/46; B21B1/00; B21B1/02; B21B1/04; B21B1/06; B21B13/00; B21B13/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A CONTROL SYSTEM FOR A REDUCTION ROLLING MILL HAVING A FIRST SET OF ROLLS DRIVEN BY A FIRST VARIABLE SPEED MOTOR AND A SECOND SET OF ROLLS DRIVEN BY A SECOND MOTOR, SAID SYSTEM COMPRISING MEANS FOR SENSING THE FIRST MOTOR LOADDING AFTER WORKPIECE TRANSPORT BETWEEN THE FIRST ROLLS AND PRIOR TO WORKPIECE ENTRY TO THE SECOND ROLLS, MEANS FOR SENSING THE FIRST MOTOR LOADING AFTER WORKPIECE ENTRY TO THE SECOND ROLLS, AND MEANS RESPONSIVE TO BOTH TO SAID SENSING MEANS FOR ADJUSTING THE FIRST MOTOR DRIVE SPEED TO MATCH THE FIRST ROLL SPEED WITH THE SECOND ROLL SPEED AFTER WORKPIECE ENTRY TO THE SECOND ROLLS.
Claim 2
Dependent Claim
106 words
A CONTROL SYSTEM FOR A REDUCTION ROLLING MILL HAVING A FIRST SET OF ROLLS DRIVEN BY A FIRST VARIABLE SPEED MOTOR AND A SECOND SET OF ROLLS DRIVEN BY A SECOND MOTOR, SAID SYSTEM COMPRISING MEANS FOR SENSING THE FIRST MOTOR LOADDING AFTER WORKPIECE TRANSPORT BETWEEN THE FIRST ROLLS AND PRIOR TO WORKPIECE ENTRY TO THE SECOND ROLLS, MEANS FOR SENSING THE FIRST MOTOR LOADING AFTER WORKPIECE ENTRY TO THE SECOND ROLLS, AND MEANS RESPONSIVE TO BOTH TO SAID SENSING MEANS FOR ADJUSTING THE FIRST MOTOR DRIVE SPEED TO MATCH THE FIRST ROLL SPEED WITH THE SECOND ROLL SPEED AFTER WORKPIECE ENTRY TO THE SECOND ROLLS.
References Cited (Backward Citations)
US1795014A
Cited
US1895303A
Cited
US1871437A
Cited
US2254886A
Cited
US2320850A
Cited
US2342767A
Cited
US3036480A
Cited
US3078746A
Cited
US3109330A
Cited
US3213656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |