US3945855A
Expired / Lapsed
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Thermoelectric device including an alloy of GeTe and AgSbTe as the P-type element
Assignee: Teledyne Inc
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Filing: 1972-03-08
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Granted: 1976-03-23
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Expires: 1992-03-08
Abstract
Abstract Improved alloys suitable for thermoelectric applications and having the general formula:
Inventors
- 👤 Emanuel Andrew Skrabek
- 👤 Donald Smith Trimmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852; C; C22; C22C; C22C28/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
103 words
A thermoelectric device comprising a P-type element consisting essentially of an alloy of GeTe and AgSbTe 2 , containing both rhombohedral and face-centered cubic crystals and having a ZT value in excess of 1.3 at 750°K, an N-type element formed of a compatible material, and a chemically and electrically compatible conductor shoe electrically connecting said P-type element to said N-type element, the respective amounts of said GeTe and AgSbTe 2 present in said alloy being represented by the formula (AgSbTe 2 ) 1 -x + (GeTe) x , wherein x is expressed in mol fraction and has values of about 0.80 and 0.85.
Claim 2
Dependent Claim
103 words
A thermoelectric device comprising a P-type element consisting essentially of an alloy of GeTe and AgSbTe 2 , containing both rhombohedral and face-centered cubic crystals and having a ZT value in excess of 1.3 at 750°K, an N-type element formed of a compatible material, and a chemically and electrically compatible conductor shoe electrically connecting said P-type element to said N-type element, the respective amounts of said GeTe and AgSbTe 2 present in said alloy being represented by the formula (AgSbTe 2 ) 1 -x + (GeTe) x , wherein x is expressed in mol fraction and has values of about 0.80 and 0.85.
Claim 3
Dependent Claim
33 words
A thermoelectric device as defined in claim 1, wherein said N-type material is selected from the group consisting of lead, tin, telluride doped with lead iodide and lead telluride doped with lead iodide.
Claim 4
Dependent Claim
74 words
A P-type thermoelectric element containing an alloy consisting essentially of GeTe and AgSbTe 2 , containing both rhombohedral and face-centered cubic crystals and having a ZT value in excess of 1.3 at 750°K, the respective amounts of said GeTe and AgSbTe 2 present in said alloy being represented by the formula (AgSbTe 2 ) 1 -x + (GeTe) x wherein x is expressed in mol fraction and has values of about 0.80 and 0.85.
Claim 5
Dependent Claim
74 words
A P-type thermoelectric element containing an alloy consisting essentially of GeTe and AgSbTe 2 , containing both rhombohedral and face-centered cubic crystals and having a ZT value in excess of 1.3 at 750°K, the respective amounts of said GeTe and AgSbTe 2 present in said alloy being represented by the formula (AgSbTe 2 ) 1 -x + (GeTe) x wherein x is expressed in mol fraction and has values of about 0.80 and 0.85.
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) | 1979-03-23 | 1979-09-22 | 1980-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-23 | 1983-09-22 | 1984-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-23 | 1987-09-22 | 1988-03-23 | $7700.00 | Window Closed / Lapsed |