US3398027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrometric probe
Assignee: Societe des Forges et Ateliers du Creusot
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Filing: 1965-11-22
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Granted: 1968-08-20
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Expires: 1985-11-22
Abstract
No abstract record available.
Inventors
- 👤 Lajarrige Andre
- 👤 Leger Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:18
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/08; G01K1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PYROMETRIC PROBE FOR CONTINUOUSLY MEASURING THE TEMPERATURE OF A LIQUID MELT DURING PROCESSING IN A MELTING FURNACE, COMPRISNG A VERTICAL TUBE OF SILLIMANITE CLOSED AT ITS LOWER END, A THERMOCOUPLE MOUNTED WITHIN SAID TUBE, WIRES LEADING FROM SAID THERMOCOUPLE, A QUARTZ PROTECTIVE SHEATH SURROUNDING SAID TUBE ANDIMMERSED IN THE LIQUID MELT, A STEEL SUPPORT TUBE CONNECTED TO AND COAXIAL WITH SAID SHEATH ABOVE THE LEVEL OF IMMERSION OF SAID SHEATH IN THE MELT AND A PROTECTIVE LAYER OF ASBESTOS ON SAID SUPPORT TUBE.
Claim 2
Dependent Claim
84 words
A PYROMETRIC PROBE FOR CONTINUOUSLY MEASURING THE TEMPERATURE OF A LIQUID MELT DURING PROCESSING IN A MELTING FURNACE, COMPRISNG A VERTICAL TUBE OF SILLIMANITE CLOSED AT ITS LOWER END, A THERMOCOUPLE MOUNTED WITHIN SAID TUBE, WIRES LEADING FROM SAID THERMOCOUPLE, A QUARTZ PROTECTIVE SHEATH SURROUNDING SAID TUBE ANDIMMERSED IN THE LIQUID MELT, A STEEL SUPPORT TUBE CONNECTED TO AND COAXIAL WITH SAID SHEATH ABOVE THE LEVEL OF IMMERSION OF SAID SHEATH IN THE MELT AND A PROTECTIVE LAYER OF ASBESTOS ON SAID SUPPORT TUBE.
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) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |