US3758346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric generator
Assignee: Siemens AG
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Filing: 1972-05-16
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Granted: 1973-09-11
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Expires: 1992-05-16
Abstract
Abstract A THERMOELECTRIC GENERATOR FOR SUPPLYING CURRENT FOR HEART PACEMAKERS IS DISCLOSED. THE THERMOELECTRIC GENERATOR HAS A RADIOACTIVE HEAT SOURCE AND A PLURALITY OF THERMOCOUPLE ELEMENTS FORMED USING MICROFILM TECHNOLOGY. THE CONTAINER OF THE ISOTOPE HEAT SOURCE IS ARRANGED BETWEEN TWO THERMOCOUPLE UNITS HAVING THIN-FILM THERMOCOUPLE ELEMENTS. THESE ELEMENTS ARE EVAPORATED ONTO A FOIL OF PLASTIC WHICH IS COILD UP TO FORM A HOLLOW CYLINDER. THE CONTAINER IS CONFIGURED AS A BODY OF ROTATIONAL SYMERTY AND IS FIXED BETWEEN THE ENDS OF THE THERMOCOUPLE UNIS. THE THERMOELECTRIC GENERATOR AFFORDS THE ADVANTAGES OF LOW STRUCTURA HEIGHT AND HIGH EFFICIENCY.
Inventors
- 👤 G Rittmayer
- 👤 J Winkler
- 👤 D Falkenberg
- 👤 T Renner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:09
CPC Classifications
G; G21; G21H; G21H1/00; G21H1/10; G21H1/103; H; H10; H10N; H10N10/00
Claims Analysis
Total Claims: 0
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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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |