US2924976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature measuring device and thermocouple
Assignee: Individual
•
Filing: 1956-04-13
•
Granted: 1960-02-16
•
Expires: 1976-04-13
Abstract
No abstract record available.
Inventors
- 👤 Babiskin Julius
- 👤 Martin C Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:44
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A TEMPERATURE RESPONSIVE DEVICE COMPRISING IN COMBINATION A HEAT INSULATED CHAMBER HAVING A COMPARTMENT FOR LIQUID REFRIGERANT, A BISMUTH-COPPER THERMOCOUPLE HAVING THE BISMUTH PRESENT AS AN ELONGATED SINGLE CRYSTAL OF PURE BISMUTH (99.99% PURE) AND THE COPPER IS PRESENT AS LEAD LINES CONNECTED AT OPPOSITE ENDS OF SAID BISMUTH, SAID THERMOCOUPLE LYING BELOW SAID REFRIGERANT COMPARTMENT WITH THE UPPER TERMINAL OF THE BISMUTH CRYSTAL ATTACHED TO THE UNDER SIDE OF THE SAME AND THE COPPER WIRES LEADING THROUGH SAID REFRIGERANT COMPARTMENT, A MAGNET CAPABLE OF PROJECTING A MAGNETIC FIELD OF AT LEAST 3000 GAUSS ACROSS THE BISMUTH CRYSTAL, SAID THERMOCOUPLE BEING POSITIONED WILTHIN SAID MAGNETIC FIELD WITH THE LONGITUDINAL AXIS THEREOF PERPENDICULAR TO SAID FIELD AND MEANS FOR ADMITTING HEAT TO SAID THERMOCOUPLE.
Claim 2
Dependent Claim
123 words
A TEMPERATURE RESPONSIVE DEVICE COMPRISING IN COMBINATION A HEAT INSULATED CHAMBER HAVING A COMPARTMENT FOR LIQUID REFRIGERANT, A BISMUTH-COPPER THERMOCOUPLE HAVING THE BISMUTH PRESENT AS AN ELONGATED SINGLE CRYSTAL OF PURE BISMUTH (99.99% PURE) AND THE COPPER IS PRESENT AS LEAD LINES CONNECTED AT OPPOSITE ENDS OF SAID BISMUTH, SAID THERMOCOUPLE LYING BELOW SAID REFRIGERANT COMPARTMENT WITH THE UPPER TERMINAL OF THE BISMUTH CRYSTAL ATTACHED TO THE UNDER SIDE OF THE SAME AND THE COPPER WIRES LEADING THROUGH SAID REFRIGERANT COMPARTMENT, A MAGNET CAPABLE OF PROJECTING A MAGNETIC FIELD OF AT LEAST 3000 GAUSS ACROSS THE BISMUTH CRYSTAL, SAID THERMOCOUPLE BEING POSITIONED WILTHIN SAID MAGNETIC FIELD WITH THE LONGITUDINAL AXIS THEREOF PERPENDICULAR TO SAID FIELD AND MEANS FOR ADMITTING HEAT TO SAID THERMOCOUPLE.
References Cited (Backward Citations)
US2189122A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |