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US4010120A
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High temperature hot conductors
Assignee: Siemens AG
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Filing: 1976-04-19
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Granted: 1977-03-01
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Expires: 1996-04-19
Abstract
Abstract Hot conductors containing a mixture of praseodymium oxide and erbium oxide are suitable for use at high temperatures.
Inventors
- 👤 Horst Walch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:48
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/16; G01K7/22; H; H01; H01C; H01C7/00; H01C7/04; H01C7/042; H01C7/043
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
26 words
A hot conductor for use in high temperature environments comprised of a sintered oxide material consisting essentially of a mixture of praseodymium oxide and eribum oxide.
Claim 2
Dependent Claim
26 words
A hot conductor for use in high temperature environments comprised of a sintered oxide material consisting essentially of a mixture of praseodymium oxide and eribum oxide.
Claim 3
Dependent Claim
21 words
A hot conductor as defined in claim 1 wherein said mixture consisting essentially of about 50 to 90 atom% of praseodymium.
Claim 4
Dependent Claim
21 words
A hot conductor as defined in claim 1 wherein said mixture consisting essentially of about 90 to 95 atom% of praseodymium.
Claim 5
Dependent Claim
23 words
A hot conductor as defined in claim 1 wherein said mixture consisting essentially of about 90 atom% praseodymium and about 10 atom% erbium.
Claim 6
Dependent Claim
25 words
A hot conductor as defined in claim 1 wherein said mixture consisting essentially of about 95 atom% of praseodymium and about 5 atom% of erbium.
References Cited (Backward Citations)
US3950273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-29 | 1980-08-30 | 1981-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-29 | 1984-08-30 | 1985-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-29 | 1988-08-30 | 1989-03-01 | $7700.00 | Window Closed / Lapsed |