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US3095463A
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US
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Temperature control apparatus
Assignee: Crucible Steel Company of America
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Filing: 1958-03-12
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Granted: 1963-06-25
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Expires: 1978-03-12
Abstract
No abstract record available.
Inventors
- 👤 Melvin C Chang
- 👤 Goldstein David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:15
CPC Classifications
G; G05; G05D; G05D23/00; C; C23; C23G; C23G1/00; C23G1/02; D; D06; D06B; D06B23/00; D06B23/20; D06B23/22; G05D9/00; G05D9/12; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2534; Y10T137/7287; Y10T137/7358; Y10T137/7368
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
76 words
IN A LIQUID-CONTAINING TANK, MEANS TO MEASURE THE LEVELOF LIQUID IN THE TANK, FIRST AND SECOND ALTERNATIVE HEATING MEANS RESPONSIVE TO LIQUID LEVEL CHANGES AS DETECTED BY SAID LIQUID LEVEL MEASURING MEANS TO MAINTAIN THE LEVEL OF SAID LIQUID IN SAID TANK SUBSTANTIALLY CONSTANT, SAID FIRST HEATING MEANS COMPRISING HEAT EXCHANGER MEANS TO HEAT SAID LIQUID INDIRECTLY AND SAID SECOND HEATING MEANS COMPRISING INJECTION MEANS TO HEAT SAID LIQUID DIRECTLY, SAID FIRST HEATING MEANS BEING ACTUATED
References Cited (Backward Citations)
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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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |