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US3836798A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for converting nuclear energy into electrical energy

Assignee: Greatbatch Ltd
•
Filing: 1972-08-15
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Granted: 1974-09-17
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Expires: 1992-08-15
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Abstract

Abstract A device for converting nuclear energy into electrical energy comprising a radioactive nuclide, preferably a core of lithium enveloped by a coating of lithium hydride, an energy converting material enveloping the nuclide, and a pair of terminals connected in the converting material. The converting material preferably comprises silicon having diffused therein impurities of p-type and n-type material thereby defining opposite conductivity regions separated by a junction. The terminals are connected to corresponding ones of the regions, and electron-hole pairs are created in the regions upon bombardment by beta particles from the nuclide thereby creating a flow of current across the junction and an electrical potential across the terminals. The device advantageously can be utilized in conjunction with an artificial cardiac pacemaker whereby the stimulating pacemaker output pulses are generated at a non-linear rate.

Inventors

  • 👤 W Greatbatch

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 15:32
CPC Classifications
G; G21; G21G; G21G4/00; G21G4/04; A; A61; A61N; A61N1/00; A61N1/18; A61N1/32; A61N1/36; A61N1/372; A61N1/378; G21H; G21H1/00; G21H1/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 22 words
A device according to claim 1 wherein said radioactive nuclide comprises a core of lithium enveloped by a coating of lithium hydride.
Claim 2
Dependent Claim 28 words
A device according to claim 1 further comprising a protective seal enveloping said energy converting material, said seal comprising material capable of venting helium while containing hydrogen gas.

References Cited (Backward Citations)

US2847585A Cited
GB761404A Cited
US2998550A Cited
US2952817A Cited
US3011096A Cited
DE1055144B Cited
US3645267A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-09-16 1978-03-18 1978-09-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-09-16 1982-03-18 1982-09-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-09-16 1986-03-18 1986-09-17 $7700.00 Window Closed / Lapsed

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