US3681929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric device
Assignee: Individual
•
Filing: 1970-12-07
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Granted: 1972-08-08
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Expires: 1990-12-07
Abstract
Abstract Thermoelectric device includes at least one Peltier block formed of a plurality of n and p-conductive semiconductor legs and metallic bridge members interconnecting the legs at opposite warm and cold sides of the Peltier block, heat exchanger means located respectively at the warm and the cold sides of the Peltier block and having a surface disposed adjacent a surface of the bridge members located at the warm and the cold sides respectively of the Peltier block, and an intermediate layer of solid insulating material and deformable medium for improving heat transfer sandwiched between the surfaces at the warm and the cold sides respectively of the Peltier block, the insulating material being in the form of crystalline particles having a grain diameter exceeding the sum of the roughness depths of the surfaces between which the respective intermediate layer is sandwiched.
Inventors
- 👤 Hans Schering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:53
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/10; H10N10/17; F; F25; F25B; F25B21/00; F25B21/02; F25B2321/00; F25B2321/02; F25B2321/023
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
174 words
Thermoelectric device comprising at least one Peltier block formed of a plurality of n and p-conductive semiconductor legs and metallic bridge members interconnecting said legs at opposite warm and cold sides of said Peltier block, heat exchanger means located respectively at said warm and said cold sides of said Peltier block and having a surface disposed adjacent a surface of the bridge members located at said warm and said cold sides respectively of said Peltier block, and an intermediate layer of solid insulating material and deformable medium for improving heat transfer sandwiched between said surfaces at said warm and said cold sides respectively of said Peltier block, said insulating material being in the form of crystalline particles having a grain diameter exceeding the sum of the roughness depths of the surfaces between which the respective intermediate layer is sandwiched, and a carrier medium mixed with said crystalline particles, said carrier medium being in liquid state at least when initially applied to said surfaces of said bridge members and both of said heat exchanger means.
Claim 2
Dependent Claim
174 words
Thermoelectric device comprising at least one Peltier block formed of a plurality of n and p-conductive semiconductor legs and metallic bridge members interconnecting said legs at opposite warm and cold sides of said Peltier block, heat exchanger means located respectively at said warm and said cold sides of said Peltier block and having a surface disposed adjacent a surface of the bridge members located at said warm and said cold sides respectively of said Peltier block, and an intermediate layer of solid insulating material and deformable medium for improving heat transfer sandwiched between said surfaces at said warm and said cold sides respectively of said Peltier block, said insulating material being in the form of crystalline particles having a grain diameter exceeding the sum of the roughness depths of the surfaces between which the respective intermediate layer is sandwiched, and a carrier medium mixed with said crystalline particles, said carrier medium being in liquid state at least when initially applied to said surfaces of said bridge members and both of said heat exchanger means.
Claim 3
Dependent Claim
18 words
Thermoelectric device according to claim 1, wherein said crystalline particles are formed of at least one metal oxide.
Claim 4
Dependent Claim
23 words
Thermoelectric device according to claim 2, wherein said metal oxide is selected from the group consisting of berryllium oxide, aluminum oxide and quartz.
Claim 5
Dependent Claim
15 words
Thermoelectric device according to claim 1, wherein said crystalline particles are formed of silicon carbide.
Claim 6
Dependent Claim
18 words
Thermoelectric device according to claim 1, wherein said crystalline particles comprise a multiplicity of substantially spherically shaped granules.
Claim 7
Dependent Claim
23 words
Thermoelectric device according to claim 1, wherein said carrier medium in said liquid state thereof has a viscosity of greater than 100 centistoke.
Claim 8
Dependent Claim
17 words
Thermoelectric device according to claim 1, wherein said carrier medium consists at least partly of silicone oil.
Claim 9
Dependent Claim
20 words
Thermoelectric device according to claim 1, wherein said carrier medium is formed at least partly of a hardening plastic material.
Claim 10
Dependent Claim
20 words
Thermoelectric device according to claim 8, wherein said plastic material is a synthetic resin having a base of ricinus oil.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |