US4929282A
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US
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Silver, thallium, copper and tellurium-based thermoelectrical semiconductive thermoelectric material, preparation and application to thermoelectric converters
Assignee: Centre National de la Recherche Scientifique
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Filing: 1987-02-17
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Granted: 1990-05-29
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Expires: 2007-02-17
Abstract
Abstract Silver, thallium, copper and tellurium-based thermoelectric semiconductor materials, characterized in that they are represented by the general formula (I) Ag.sub.x Cu.sub.y T1Te.sub.1+z (I) wherein, x, y and z verify the ratios: 0.55<x<0.75; 0.25<y<0.40 and 0<z<0.10.
Inventors
- 👤 Gerard Brun
- 👤 Rose-Marie Marin-Ayral
- 👤 Maurice Maurin
- 👤 Bernard Pistoulet
- 👤 Jean-Claude Tedenac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:45
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
37 words
Silver, thallium, copper and tellurium-based thermoelectric semiconductor materials, characterized in that they are represented by the general formula (I) Ag x Cu y T1Te 1+z ( I) wherein, x, y and z are: 0.55<x<0.75; 0.25<y<0.40 and 0<z<0.10.
Claim 2
Dependent Claim
37 words
Silver, thallium, copper and tellurium-based thermoelectric semiconductor materials, characterized in that they are represented by the general formula (I) Ag x Cu y T1Te 1+z ( I) wherein, x, y and z are: 0.55<x<0.75; 0.25<y<0.40 and 0<z<0.10.
Claim 3
Dependent Claim
17 words
Thermoelectric semiconductor materials according to claim 1, characterized in that x is comprised from 0.60 to 0.70.
Claim 4
Dependent Claim
26 words
A thermoelectric semiconductor material according to claim 2, characterized in that it is represented by the formula Ag 0 .62 Cu 0 .30 T1Te 1 .05.
Claim 5
Dependent Claim
41 words
A Peltier effect thermoelectrical converter which includes at least one pair of p type and n type semiconductor elements, characterized in that the p type element is made from a semiconductor material according to any one of claims 1 to 3.
References Cited (Backward Citations)
AT28697B
Cited
GB578187A
Cited
FR1388482A
Cited
US3853632A
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US3852118A
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AU2869771A
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US3932291A
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US4589918A
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FR2566585A1
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |