Patent US4139415A successfully refreshed from Google Patents.
Patent US3298212A successfully refreshed from Google Patents.
US3298212A
Expired / Lapsed
US
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Rolling mill control apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1963-12-16
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Granted: 1967-01-17
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Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 John W Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:54
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/46; B21B35/00; B21B35/02; B21B35/04; B21B37/28; B21B37/44; B21B45/00; B21B45/02; B21B45/0239; B21B45/0245; B21B45/0248; B21B45/0251
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
CONTROL APPARATUS FOR A WORKPIECE ROLLING MILL HAVING A PAIR OF COOPERATING ROLLS, WITH SAID WORKPIECE BEING POSITIONED TO PASS BETWEEN SAID PAIR OF ROLLS, AND INCLUDING A FIRST MOTOR CONNECTED TO DRIVE A FIRST OF SAID ROLLS, A SECOND MOTOR CONNECTED TO DRIVE THE SECOND OF SAID ROLLS, LOAD BALANCE CONTROL MEANS OPERATIVE WITH AT LEAST ONE OF SAID ROLLS, FIRST CONDITION SENSING MEANS COUPLED TO SAID FIRST MOTOR FOR PROVIDING A FIRST CONTROL SIGNAL IN ACCORDANCE WITH A PREDETERMINED OPERATING CONDITION OF THE FIRST MOTOR, SECOND CONDITION SENSING MEANS COUPLED TO SAID SECOND MOTOR FOR PROVIDING A SECOND CONTROL SIGNAL IN ACCORDANCE WITH A PREDETERMINED OPERATING CONDITION OF THE SECOND MOTOR, WITH SAID LOAD BALANCE CONTROL MEANS BEING RESPONSIVE TO EACH OF SAID FIRST AND SECOND CONTROL SIGNALS FOR VARYING THE RELATIVE LOAD BETWEEN SAID WORKPIECE AND AT LEAST ONE OF SAID ROLLS IN ACCORDANCE WITH A PREDETERMINED RELATIONSHIP BETWEEN SAID FIRST AND SECOND CONTROL SIGNALS, AND SPEED CONTROL MEANS RESPONSIVE TO THE SPEED OF AT LEAST ONE OF SAID MOTORS FOR PROVIDING A PREDETERMINED SPEED RELATIONSHIP BETWEEN SAID MOTORS.
Claim 2
Dependent Claim
182 words
CONTROL APPARATUS FOR A WORKPIECE ROLLING MILL HAVING A PAIR OF COOPERATING ROLLS, WITH SAID WORKPIECE BEING POSITIONED TO PASS BETWEEN SAID PAIR OF ROLLS, AND INCLUDING A FIRST MOTOR CONNECTED TO DRIVE A FIRST OF SAID ROLLS, A SECOND MOTOR CONNECTED TO DRIVE THE SECOND OF SAID ROLLS, LOAD BALANCE CONTROL MEANS OPERATIVE WITH AT LEAST ONE OF SAID ROLLS, FIRST CONDITION SENSING MEANS COUPLED TO SAID FIRST MOTOR FOR PROVIDING A FIRST CONTROL SIGNAL IN ACCORDANCE WITH A PREDETERMINED OPERATING CONDITION OF THE FIRST MOTOR, SECOND CONDITION SENSING MEANS COUPLED TO SAID SECOND MOTOR FOR PROVIDING A SECOND CONTROL SIGNAL IN ACCORDANCE WITH A PREDETERMINED OPERATING CONDITION OF THE SECOND MOTOR, WITH SAID LOAD BALANCE CONTROL MEANS BEING RESPONSIVE TO EACH OF SAID FIRST AND SECOND CONTROL SIGNALS FOR VARYING THE RELATIVE LOAD BETWEEN SAID WORKPIECE AND AT LEAST ONE OF SAID ROLLS IN ACCORDANCE WITH A PREDETERMINED RELATIONSHIP BETWEEN SAID FIRST AND SECOND CONTROL SIGNALS, AND SPEED CONTROL MEANS RESPONSIVE TO THE SPEED OF AT LEAST ONE OF SAID MOTORS FOR PROVIDING A PREDETERMINED SPEED RELATIONSHIP BETWEEN SAID MOTORS.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |