US3283370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for automatically starting a continuous casting apparatus
Assignee: United States Steel Corp
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Filing: 1964-04-15
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Granted: 1966-11-08
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Expires: 1984-04-15
Abstract
No abstract record available.
Inventors
- 👤 Leo E Jendraszkiewicz
- 👤 Robert J Keene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:51
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C22B1/24; B; B22; B22D; B22D11/00; B22D11/16; B22D11/20; B22D11/201; B22D11/202
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN A CONTINUOUS CASTING APPARATUS HAVING A CASTING MOLD, PINCH ROLLS TO WITHDRAW A CASTING FROM SAID MOLD AND A SPRAY UNIT FOR COOLING SAID CASTING; A CONTROL SYSTEM FOR AUTOMATICALLY STARTING THE OPERATION OF SAID CASTING APPARATUS COMPRISES: FIRST CONTROL CIRCUIT MEANS, INCLUDING A FIRST TEMPERATURE-RESPONSIVE RELAY IN THE WALL OF SAID MOLD NEAR THE BOTTOM OF SAID MOLD, TO CONTROL POWER TO SAID SPRAY UNIT, SECOND CONTROL CIRCUIT MEANS, INCLUDING A SECOND TEMPERATURE-RESPONSIVE RELAY IN SAID MOLD WALL NEAR THE TOP OF SAID MOLD, TO CONTROL POWER TO SAID PINCH ROLLS, AND TIME DELAY MEANS ACTUATED BY SAID FIRST CONTROL CIRCUIT MEANS AND COUPLED TO SAID SECOND CONTROL CIRCUIT MEANS TO DISENABLE THE CONNECTION BETWEEN SAID SECOND CONTROL CIRCUIT MEANS AND SAID PINNCH ROLLS UNTIL A PRE-DETERMINED TIME AFTER THE ACTUATION OF SAID SPRAY UNIT.
Claim 2
Dependent Claim
137 words
IN A CONTINUOUS CASTING APPARATUS HAVING A CASTING MOLD, PINCH ROLLS TO WITHDRAW A CASTING FROM SAID MOLD AND A SPRAY UNIT FOR COOLING SAID CASTING; A CONTROL SYSTEM FOR AUTOMATICALLY STARTING THE OPERATION OF SAID CASTING APPARATUS COMPRISES: FIRST CONTROL CIRCUIT MEANS, INCLUDING A FIRST TEMPERATURE-RESPONSIVE RELAY IN THE WALL OF SAID MOLD NEAR THE BOTTOM OF SAID MOLD, TO CONTROL POWER TO SAID SPRAY UNIT, SECOND CONTROL CIRCUIT MEANS, INCLUDING A SECOND TEMPERATURE-RESPONSIVE RELAY IN SAID MOLD WALL NEAR THE TOP OF SAID MOLD, TO CONTROL POWER TO SAID PINCH ROLLS, AND TIME DELAY MEANS ACTUATED BY SAID FIRST CONTROL CIRCUIT MEANS AND COUPLED TO SAID SECOND CONTROL CIRCUIT MEANS TO DISENABLE THE CONNECTION BETWEEN SAID SECOND CONTROL CIRCUIT MEANS AND SAID PINNCH ROLLS UNTIL A PRE-DETERMINED TIME AFTER THE ACTUATION OF SAID SPRAY UNIT.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |