US3411956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermocouple with nickel-containing elements
Assignee: HOSKINS ALLOYS LLC
•
Filing: 1963-10-15
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Granted: 1968-11-19
•
Expires: 1983-10-15
Abstract
No abstract record available.
Inventors
- 👤 Forbes S Sibley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:12
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/854; H10N10/10; H10N10/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A THERMOCOUPLE COMPRISING AN ELECTROPOSITIVE ELEMENT COMPOSED OF AN ALLOY CONSISTING ESSENTIALLY OF FROM 9 TO 12.5% CHROMIUM, UP TO 2.5% IRON, UP TO 3.0% MOLYBDENUM, RESIDUAL AMOUNS OF SLICON AND ALUMINUM RESULTING FROM DEXOIDATION OF THE MELT AND THE BALANCE SUBSTANTIALLY ALL NICKEL JOINTED TO AN ELECTRONEGATIVE ELEMENT COMPOSED OF AN ALLOY CONSISTING ESSENTIALLY OF 13.5 TO 15.5% COPPER AND THE BALANCE SUBSTANTIALLY ALL NICKEL, SAID ELECTRONEGATIVE ELEMENT DEVELOPING IN COMBINATION, WITH SAID ELECTROPOSITIVE ELEMENT AN ELECTROMOTIVE FORCE WHICH CLOSELY CONFORMS TO THE STANDARD E.M.F. VS. TEMPERATURE CURVE OF AN IRON-CONSTANTAN THERMOCOUPLE.
Claim 2
Dependent Claim
93 words
A THERMOCOUPLE COMPRISING AN ELECTROPOSITIVE ELEMENT COMPOSED OF AN ALLOY CONSISTING ESSENTIALLY OF FROM 9 TO 12.5% CHROMIUM, UP TO 2.5% IRON, UP TO 3.0% MOLYBDENUM, RESIDUAL AMOUNS OF SLICON AND ALUMINUM RESULTING FROM DEXOIDATION OF THE MELT AND THE BALANCE SUBSTANTIALLY ALL NICKEL JOINTED TO AN ELECTRONEGATIVE ELEMENT COMPOSED OF AN ALLOY CONSISTING ESSENTIALLY OF 13.5 TO 15.5% COPPER AND THE BALANCE SUBSTANTIALLY ALL NICKEL, SAID ELECTRONEGATIVE ELEMENT DEVELOPING IN COMBINATION, WITH SAID ELECTROPOSITIVE ELEMENT AN ELECTROMOTIVE FORCE WHICH CLOSELY CONFORMS TO THE STANDARD E.M.F. VS. TEMPERATURE CURVE OF AN IRON-CONSTANTAN THERMOCOUPLE.
References Cited (Backward Citations)
GB783817A
Cited
FR349632A
Cited
US1025715A
Cited
US2224573A
Cited
US2757221A
Cited
US2990440A
Cited
AT222389B
Cited
US3017269A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |