Patent US3183294A successfully refreshed from Google Patents.
US3183294A
Expired / Lapsed
US
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Temperature control apparatus
Assignee: Ohio Crankshaft Co
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Filing: 1962-04-09
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Granted: 1965-05-11
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Expires: 1982-04-09
Abstract
No abstract record available.
Inventors
- 👤 Robert J Kasper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:07
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/22; G05D23/1927; G05D23/193; G05D23/1931; Y; Y10; Y10S; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
AN APPARATUS FOR CONTROLLING THE TEMPERATURE OF A MOLTEN METAL WITHIN A FURNACE HAVING REFRACTORY WALLS, SAID APPARATUS COMPRISING AN INDUCTION HEATING COIL SURROUNDING SAID FURNACE, AN ELECTRIC GENERATOR FOR ENERGIZING SAID COIL, TEMPERATURE SENSING MEANS WITHIN, SAID REFRACTORY WALLS AND SPACED FROM SAID MOLTEN METAL, MEANS FOR MEASURING THE TEMPERATURE SENSED BY SAID SENSING MEANS CALIBRATING MEANS FOR ESTABLISHING A TEMPERATURE SENSED BY SAID SENSING MEANS WHICH CORRESPONDS TO THE DESIRED TEMPERATURE FOR THE MOLTEN METAL IN SAID FURNACE, A CONTROL DEVICE FOR COMPARING SAID TEMPERATURE MEASURED BY SAID MEASURING MEANS AND SAID ESTABLISHED TEMPERATURE, A SIGNAL GENERATING DEVICE TO CONTROL SAID GENERATOR IN ACCORDANCE WITH THE DIFFERENCE BETWEEN SAID MEASURED TEMPERATURE AND SAID ESTABLISHED TEMPERATURE.
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) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |