Patent US3307228A successfully refreshed from Google Patents.
US3307228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous casting control method and apparatus
Assignee: Individual
•
Filing: 1963-11-01
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Granted: 1967-03-07
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Expires: 1983-11-01
Abstract
No abstract record available.
Inventors
- 👤 Albert W Scribner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:58
CPC Classifications
B; B22; B22D; B22D11/00; B22D11/16; B22D11/20; B22D11/006
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
A METHOD OF CONTINUOUSLY CASTING WORK METAL AND THE LIKE: COMPRISING THE STEPS OF PROVIDING A SOURCE OF WORK METAL; PROVIDING AN OPEN ENDED CASTING PASSAGE THROUGH WHICH SAID WORK METAL MAY FLOW AND BE PROGRESSIVELY HARDENED; APPLYING A PUMPING FORCE TO THE WORK METAL SO AS TO PROGRESSIVELY FORCE THE SAME INTO SAID CASTING PASSAGE; SIMULTANEOUSLY APPLYING A DRAWING FORCE TO THE HARDENED WORK METAL LEAVING THE CASTING PASSAGE; AND INCREASING BOTH OF THE SAID FORCES WHEN THE RESISTANCE TO METAL FLOW THROUGH SAID CASTING PASSAGE INCREASES, AND DECREASING BOTH OF SAID FORCES WHEN SAID RESISTANCE DECREASES.
Claim 2
Independent Claim
98 words
A METHOD OF CONTINUOUSLY CASTING WORK METAL AND THE LIKE: COMPRISING THE STEPS OF PROVIDING A SOURCE OF WORK METAL; PROVIDING AN OPEN ENDED CASTING PASSAGE THROUGH WHICH SAID WORK METAL MAY FLOW AND BE PROGRESSIVELY HARDENED; APPLYING A PUMPING FORCE TO THE WORK METAL SO AS TO PROGRESSIVELY FORCE THE SAME INTO SAID CASTING PASSAGE; SIMULTANEOUSLY APPLYING A DRAWING FORCE TO THE HARDENED WORK METAL LEAVING THE CASTING PASSAGE; AND INCREASING BOTH OF THE SAID FORCES WHEN THE RESISTANCE TO METAL FLOW THROUGH SAID CASTING PASSAGE INCREASES, AND DECREASING BOTH OF SAID FORCES WHEN SAID RESISTANCE DECREASES.
Claim 3
Dependent Claim
138 words
IN A CONTINUOUS CASTING DEVICE: MOLD MEANS DEFINING AN OPEN ENDED CASTING PASSAGE THAT IS ADAPTED TO PROGRESSIVELY RECEIVE MOLTEN WORK MATERIAL THAT IS TO BE CAST IN PASSING THERETHROUGH; COOLING MEANS FOR EXTRACTING HEAT FROM THE WORK MATERIAL IN SAID CASTING PASSAGE; WITHDRAWING MEANS DISPOSED DOWNSTREAM FROM SAID MOLD PASSAGE FOR PULLING CAST WORK MATERIAL FROM SAID MOLD PASSAGE AT VARIABLE RATES; PUMPING MEANS FOR FORCING WORK MATERIAL INTO AND ALONG SAID CASTING PASSAGE; SENSING MEANS FOR SENSING THE RESISTANCE TO THE SLIDING MOVEMENT OF THE WORK MATERIAL ALONG THE MOLD SURFACES DEFINING SAID CASTING PASSAGE; AND CONTROL MEANS OPERATED BY SAID SENSING MEANS FOR CONTROLLING THE OPERATION OF SAID WITHDRAWING MEANS AND SAID PUMPING MEANS SO AS TO THEREBY CONTROL THE RATE OF ENTRY AND WITHDRAWAL OF CAST WORK MATERIAL INTO AND FROM SAID CASTING PASSAGE.
Claim 4
Dependent Claim
138 words
IN A CONTINUOUS CASTING DEVICE: MOLD MEANS DEFINING AN OPEN ENDED CASTING PASSAGE THAT IS ADAPTED TO PROGRESSIVELY RECEIVE MOLTEN WORK MATERIAL THAT IS TO BE CAST IN PASSING THERETHROUGH; COOLING MEANS FOR EXTRACTING HEAT FROM THE WORK MATERIAL IN SAID CASTING PASSAGE; WITHDRAWING MEANS DISPOSED DOWNSTREAM FROM SAID MOLD PASSAGE FOR PULLING CAST WORK MATERIAL FROM SAID MOLD PASSAGE AT VARIABLE RATES; PUMPING MEANS FOR FORCING WORK MATERIAL INTO AND ALONG SAID CASTING PASSAGE; SENSING MEANS FOR SENSING THE RESISTANCE TO THE SLIDING MOVEMENT OF THE WORK MATERIAL ALONG THE MOLD SURFACES DEFINING SAID CASTING PASSAGE; AND CONTROL MEANS OPERATED BY SAID SENSING MEANS FOR CONTROLLING THE OPERATION OF SAID WITHDRAWING MEANS AND SAID PUMPING MEANS SO AS TO THEREBY CONTROL THE RATE OF ENTRY AND WITHDRAWAL OF CAST WORK MATERIAL INTO AND FROM SAID CASTING PASSAGE.
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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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |