US3274653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quickly disconnectable starter bar
Assignee: United States Steel Corp
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Filing: 1963-12-26
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Granted: 1966-09-27
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Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 Justin E Foldessy
- 👤 Andrew L Poulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:23
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/08; B22D11/081; B22D11/083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
IN A CONTINUOUS METAL CASTING APPARATUS COMPRISING A MOLD OF RECTANGULAR CROSS-SECTION IN WHICH METAL IS CAST, A PLURALITY OF GUIDE ROLLS BELOW TE MOLD FOR GUIDING A METAL CASTING AS IT DESCENDS, AND PINCH ROLLERS BELOW SAID GUIDE ROLLS FOR CONTROLLING THE RATE OF DESCENT OF THE CASTING, THE IMPROVEMENT COMPRISING A CHILL PLATE OF RECTANGULAR CROSS-SECTION SLIGHTLY SMALLER THAN THAT OF SAID MOLD FOR CLOSING THE BOTTOM OF THE MOLD WHEN THE METAL IS FIRST CAST, A RIGID STARTER BAR FOR CONNECTION TO SAID PLATE TO SUPPORT THE PLATE UNTIL THE CAST METAL SOLIDIFIES THEREON AND BECOMES ATTACHED THERETO AND TO THEN MOVE THE PLATE AND CASTING DOWNWARDLY AND THUS START THE CASTING PROCESS, THE TOP SECTION OF SAID STARTER BAR BEING OF THE SAME CROSSSECTIONAL SIZE AND SHAPE AS SAID CHILL PLATE AND HAVING A PAIR OF RECESSES THEREIN, A PAIR OF LATCHES RESPECTIVELY LOCATED IN SAID PAIR OF SAID RECESSES, EACH OF SAID LATCHES
Claim 2
Dependent Claim
158 words
IN A CONTINUOUS METAL CASTING APPARATUS COMPRISING A MOLD OF RECTANGULAR CROSS-SECTION IN WHICH METAL IS CAST, A PLURALITY OF GUIDE ROLLS BELOW TE MOLD FOR GUIDING A METAL CASTING AS IT DESCENDS, AND PINCH ROLLERS BELOW SAID GUIDE ROLLS FOR CONTROLLING THE RATE OF DESCENT OF THE CASTING, THE IMPROVEMENT COMPRISING A CHILL PLATE OF RECTANGULAR CROSS-SECTION SLIGHTLY SMALLER THAN THAT OF SAID MOLD FOR CLOSING THE BOTTOM OF THE MOLD WHEN THE METAL IS FIRST CAST, A RIGID STARTER BAR FOR CONNECTION TO SAID PLATE TO SUPPORT THE PLATE UNTIL THE CAST METAL SOLIDIFIES THEREON AND BECOMES ATTACHED THERETO AND TO THEN MOVE THE PLATE AND CASTING DOWNWARDLY AND THUS START THE CASTING PROCESS, THE TOP SECTION OF SAID STARTER BAR BEING OF THE SAME CROSSSECTIONAL SIZE AND SHAPE AS SAID CHILL PLATE AND HAVING A PAIR OF RECESSES THEREIN, A PAIR OF LATCHES RESPECTIVELY LOCATED IN SAID PAIR OF SAID RECESSES, EACH OF SAID LATCHES
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |