US3078746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gage control system for strip mill
Assignee: Individual
•
Filing: 1959-11-25
•
Granted: 1963-02-26
•
Expires: 1979-11-25
Abstract
No abstract record available.
Inventors
- 👤 George P Dirth
- 👤 Fackrell Ivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:25
CPC Classifications
B; B21; B21B; B21B37/00; B21B37/48; B21B37/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A CONTROL SYSTEM FOR A STRIP-ROLLING MILL INCLUDING A MOTOR DRIVING THE MILL, A GENERATOR SUPPLYING CURRENT TO THE MOTOR, AND MEANS FURNISHING EXCITATION TO THE FIELD WINDING OF THE GENERATOR, THE COMBINATION THEREWITH OF A GAGER MEASURING THE THICKNESS OF STRIP ISSUING FROM THE MILL, A ROTATING REGULATOR CONNECTED TO SAID EXCITATION MEANS, A SATURABLE-CORE REACTOR CONTROLLING THE EXCITATION OF SAID REGULATOR, MEANS CONTROLLED BY SAID GAGER FOR VARYING THE OUTPUT OF SAID REACTOR, SAID REACTOR HAVING A FEED-BACK WINDING ENERGIZED BY SAID REGULATOR, AND A PAIR OF RHEOSTATS IN PARALLEL CONNECTED IN CIRCUIT
Claim 2
Dependent Claim
96 words
IN A CONTROL SYSTEM FOR A STRIP-ROLLING MILL INCLUDING A MOTOR DRIVING THE MILL, A GENERATOR SUPPLYING CURRENT TO THE MOTOR, AND MEANS FURNISHING EXCITATION TO THE FIELD WINDING OF THE GENERATOR, THE COMBINATION THEREWITH OF A GAGER MEASURING THE THICKNESS OF STRIP ISSUING FROM THE MILL, A ROTATING REGULATOR CONNECTED TO SAID EXCITATION MEANS, A SATURABLE-CORE REACTOR CONTROLLING THE EXCITATION OF SAID REGULATOR, MEANS CONTROLLED BY SAID GAGER FOR VARYING THE OUTPUT OF SAID REACTOR, SAID REACTOR HAVING A FEED-BACK WINDING ENERGIZED BY SAID REGULATOR, AND A PAIR OF RHEOSTATS IN PARALLEL CONNECTED IN CIRCUIT
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |