US3017446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of material for thermocouples
Assignee: The General Electric Company PLC
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Filing: 1960-01-08
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Granted: 1962-01-16
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Expires: 1980-01-08
Abstract
No abstract record available.
Inventors
- 👤 Goldsmid Hiroshi Julian
- 👤 Sheard Anthony Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:05
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A METHOD OF PREPARING THERMOCOUPLE ELEMENTS WHICH CONSIST ESSENTIALLY OF A SEMICONDUCTOR HAVING A CONSTITUTIONAL FORMULA BIMSBNTEPSEQSR (WHERE N HAS A VALUE IN THE RANGE 0-1.8, Q HAS A VALUE IN THE RANGE 0-0,4 AND R HAS A VALUE IN THE RANGE 0-0.24, SUBJECT TO THE CONDITIONS THAT M+N=2, P+Q=3, 3N+2Q+2R IS NOT LESS THAN 0.03, AND 3Q+5R IS NOT GREATER THAN 1.2): SAID METHOD COMPRISING THE STEPS OF, MELTING TOGETHER IN VACUO THE CONSTITUENT ELEMENTS OF THE SEMICONDUCTOR IN APPROPRIATE PROPORTIONS, PRODUCING FROM THE MOLTEN MATERIAL AN ELONGATED SOLID INGOT, SUBJECTING THE INGOT TO ZONE MELTING, AND THEN CUTTING THE THERMOCOUPLE ELEMENTS FROM THE INGOT WITH THAT DIMENSION OF EACH ELEMENT WHICH IS TO EXTEND BETWEEN THE JUNCTIONS OF A THERMOCOUPLE PARALLEL TO THE LONGITUDINAL AXIS OF THE INGOT.
Claim 2
Independent Claim
130 words
A METHOD OF PREPARING THERMOCOUPLE ELEMENTS WHICH CONSIST ESSENTIALLY OF A SEMICONDUCTOR HAVING A CONSTITUTIONAL FORMULA BIMSBNTEPSEQSR (WHERE N HAS A VALUE IN THE RANGE 0-1.8, Q HAS A VALUE IN THE RANGE 0-0,4 AND R HAS A VALUE IN THE RANGE 0-0.24, SUBJECT TO THE CONDITIONS THAT M+N=2, P+Q=3, 3N+2Q+2R IS NOT LESS THAN 0.03, AND 3Q+5R IS NOT GREATER THAN 1.2): SAID METHOD COMPRISING THE STEPS OF, MELTING TOGETHER IN VACUO THE CONSTITUENT ELEMENTS OF THE SEMICONDUCTOR IN APPROPRIATE PROPORTIONS, PRODUCING FROM THE MOLTEN MATERIAL AN ELONGATED SOLID INGOT, SUBJECTING THE INGOT TO ZONE MELTING, AND THEN CUTTING THE THERMOCOUPLE ELEMENTS FROM THE INGOT WITH THAT DIMENSION OF EACH ELEMENT WHICH IS TO EXTEND BETWEEN THE JUNCTIONS OF A THERMOCOUPLE PARALLEL TO THE LONGITUDINAL AXIS OF THE INGOT.
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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |