US3353384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling mill
Assignee: ABB Norden Holding AB
•
Filing: 1964-10-26
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Granted: 1967-11-21
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Expires: 1984-10-26
Abstract
No abstract record available.
Inventors
- 👤 Kain Per
- 👤 Torok Vilmos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:14
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/46; H; H02; H02P; H02P5/00; H02P5/68; B21B35/00; B21B35/02; B21B35/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
ROLLING MILL WITH WORKING ROLLS AND A FIRST AND A SECOND ELECTRICAL DRIVE MOTOR, EACH MOTOR DRIVING A DIFFERENT WORKING ROLL, A SHAFT SYSTEM COMPRISING A SHAFT OF MAGNETO-STRICTIVE MATERIAL CONNECTING EACH MOTOR TO ITS RESPECTIVE WORKING ROLL, FIRST AND SECOND MEANS OPERATIVELY CONNECTED ONE WITH EACH SAID SHAFT FOR MEASURING THE TORSIONAL STRESSES IN SAID SHAFT FOR EACH OF ROLLS, EACH OF SAID FIRST AND SECOND MEASURING MEANS HAVING AN OUTPUT, MEANS OPPOSITELY CONNECTING THE OUTPUTS; OF SAID FIRST AND SECOND MEASURING MEANS TO EACH OTHER TO OBTAIN A RESULTANT SIGNAL CORRESPONDING TO THE ACTUAL LOAD DISTRIBUTION BETWEEN SAID MOTORS, CONTROL DEVICES FOR EACH OF SAID MOTORS, AND MEANS TO FEED SAID RESULTANT SIGNAL TO THE CONTROL DEVICES OF SAID MOTORS IN ORDER TO REGULATE SAID LOAD DISTRIBUTION AT A DESIRED VALUE.
Claim 2
Dependent Claim
133 words
ROLLING MILL WITH WORKING ROLLS AND A FIRST AND A SECOND ELECTRICAL DRIVE MOTOR, EACH MOTOR DRIVING A DIFFERENT WORKING ROLL, A SHAFT SYSTEM COMPRISING A SHAFT OF MAGNETO-STRICTIVE MATERIAL CONNECTING EACH MOTOR TO ITS RESPECTIVE WORKING ROLL, FIRST AND SECOND MEANS OPERATIVELY CONNECTED ONE WITH EACH SAID SHAFT FOR MEASURING THE TORSIONAL STRESSES IN SAID SHAFT FOR EACH OF ROLLS, EACH OF SAID FIRST AND SECOND MEASURING MEANS HAVING AN OUTPUT, MEANS OPPOSITELY CONNECTING THE OUTPUTS; OF SAID FIRST AND SECOND MEASURING MEANS TO EACH OTHER TO OBTAIN A RESULTANT SIGNAL CORRESPONDING TO THE ACTUAL LOAD DISTRIBUTION BETWEEN SAID MOTORS, CONTROL DEVICES FOR EACH OF SAID MOTORS, AND MEANS TO FEED SAID RESULTANT SIGNAL TO THE CONTROL DEVICES OF SAID MOTORS IN ORDER TO REGULATE SAID LOAD DISTRIBUTION AT A DESIRED VALUE.
References Cited (Backward Citations)
US3134279A
Cited
US3200624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |