US3934162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniaturized nuclear battery
Assignee: Biviator AG
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Filing: 1973-05-15
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Granted: 1976-01-20
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Expires: 1993-05-15
Abstract
Abstract The present invention relates to a miniaturized nuclear battery, consisting of several in series connected cells, wherein each cell contains a support which acts as positive pole and which supports on one side a β-emitter, above said emitter is a radiation resisting insulation layer which is covered by an absorption layer, above which is a collector layer, and wherein the in series connected cells are disposed in an airtight case.
Inventors
- 👤 Karl Adler
- 👤 Georges Ducommun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:43
CPC Classifications
G; G21; G21H; G21H1/00; G21H1/02
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
105 words
A nuclear battery comprising a plurality of in series connected, superposed cells, each cell including a generally flat support element acting as a positive pole, a β-emitter supported on one side of said support element, a radiation resisting insulation layer disposed on said support layer and completely overlying said β-emitter, an absorption layer atop said insulation layer, and a collector layer atop said absorption layer, wherein the support element of each superposed cell lies directly on the collector layer of its subjacent cell without space between them and the in series connected cells are disposed in an airtight case where a compact battery is obtained.
Claim 2
Dependent Claim
105 words
A nuclear battery comprising a plurality of in series connected, superposed cells, each cell including a generally flat support element acting as a positive pole, a β-emitter supported on one side of said support element, a radiation resisting insulation layer disposed on said support layer and completely overlying said β-emitter, an absorption layer atop said insulation layer, and a collector layer atop said absorption layer, wherein the support element of each superposed cell lies directly on the collector layer of its subjacent cell without space between them and the in series connected cells are disposed in an airtight case where a compact battery is obtained.
Claim 3
Dependent Claim
19 words
A nuclear battery according to claim 1, wherein said support element is made of a copper- or a Cr-Ni-disc.
Claim 4
Dependent Claim
15 words
A nuclear battery according to claim 1, wherein said β-emitter is made of a Ti-T-compound.
Claim 5
Dependent Claim
24 words
A nuclear battery according to claim 1, wherein said radiation resisting insulation layer consists of a synthetic material made of polyester or polymer groups.
Claim 6
Dependent Claim
15 words
A nuclear battery according to claim 1, wherein said absorption layer is made of carbon.
Claim 7
Dependent Claim
21 words
A nuclear battery according to claim 1, wherein said collector layer is made of Fe,Al or an alloy of these substances.
Claim 8
Dependent Claim
14 words
A nuclear battery according to claim 1, wherein said cells are circular in plan.
Claim 9
Dependent Claim
17 words
A nuclear battery according to claim 1, wherein each cell has a thickness of about 30 μm.
Claim 10
Dependent Claim
16 words
A nuclear battery according to claim 1, wherein each cell generates voltage of about 50 V.
Claim 11
Dependent Claim
18 words
A nuclear battery according to claim 1, wherein the output power of a cell is about 0.012 μW.
Claim 12
Dependent Claim
16 words
A nuclear battery according to claim 1, wherein the cells are piled up in the case.
Claim 13
Dependent Claim
21 words
A nuclear battery according to claim 1, wherein said case consists of a cup-shaped base and a thereon welded flat lid.
Claim 14
Dependent Claim
18 words
A nuclear battery according to claim 1, wherein said case acts as the positive pole of the battery.
Claim 15
Dependent Claim
13 words
A nuclear battery according to claim 1, wherein case (1) contains 10 cells.
Claim 16
Dependent Claim
20 words
A nuclear battery according to claim 2, wherein the copper disc has a thickness of 1 - 2×10.sup. -2 mm.
Claim 17
Dependent Claim
19 words
A nuclear battery according to claim 3, wherein the Ti-T-compound consists of one part titanium and two parts tritium.
Claim 18
Dependent Claim
20 words
A nuclear battery according to claim 16, wherein said Ti-T-compound forms a film with an activity of about 40 mC.
Claim 19
Dependent Claim
19 words
A nuclear battery according to claim 4, wherein the insulation layer has a thickness of about 1×10.sup. -4 mm.
Claim 20
Dependent Claim
19 words
A nuclear battery according to claim 5, wherein said carbon layer has a thickness of about 1×10.sup. -2 mm.
Claim 21
Dependent Claim
21 words
A nuclear battery according to claim 6, wherein said collector layer has a thickness of about 1 - 2×10.sup. -2 mm.
Claim 22
Dependent Claim
20 words
A nuclear battery according to claim 7, wherein each cell has an effective surface of about 2 cm 2 .
Claim 23
Dependent Claim
27 words
A nuclear battery according to claim 11, wherein above the top cell is a contact disc with a raised part, said part protruding through an insulating disc.
Claim 24
Dependent Claim
23 words
A nuclear battery according to claim 12, wherein the inner surfaces of the side wall of the base have an insulation layer thereon.
Claim 25
Dependent Claim
15 words
A nuclear battery according to claim 12, wherein said lid has a cast-in contact pole.
Claim 26
Dependent Claim
19 words
A nuclear battery according to claim 22, wherein a spring is put between the lid and the insulation disc.
Claim 27
Dependent Claim
18 words
A nuclear battery according to claim 24, wherein the contact pole and the raised part are electrically connected.
Claim 28
Dependent Claim
15 words
A nuclear battery according to claim 26, wherein said contact pole acts as negative pole.
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) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |