US4170694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed alkali metal battery container
Assignee: Lockheed Martin Tactical Systems Inc
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Filing: 1978-12-04
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Granted: 1979-10-09
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Expires: 1998-12-04
Abstract
Abstract This disclosure relates to a hermetically sealed alkali metal battery container. The battery includes a ceramic ring having upper and lower contoured surfaces thereon located on its outer circumferential surface. Outer metal casings defining an upper battery container and a lower battery container are formed so as to have a bell-shaped open end on each one. The bell-shaped open end of respective casings are located adjacent the contoured surfaces formed on the ceramic ring. Each bell-shaped open end of a metal casing has associated therewith a sealing band which engages the open end of the casing to compress the same into engagement with an associated contoured surface of the ceramic ring to form a hermetic seal therebetween.
Inventors
- 👤 Gordon G. Chase
- 👤 Richard A. Harlow
- 👤 Viney K. Gupta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:14
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M10/39; H01M10/3909; H01M50/00; H01M50/10; H01M50/138; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
247 words
A hermetically sealed alkali metal battery container comprising: a ceramic ring having top and bottom surfaces, said ceramic ring having an outer circumferential surface which is formed so as to have an upper and a lower contoured surface respectively adjacent said top and said bottom surfaces thereof; an inner casing of a solid alkali ion-conductive material with an open end and a closed end; sealing means for bonding said inner casing adjacent its open end to said ceramic ring so that said inner casing extends from said bottom surface of said ceramic ring; a first metal outer casing with a closed end and a bell-shaped open end having a diameter slightly greater than the diameter of said lower contoured surface of said ceramic ring, said bell-shaped open end encircling said lower contoured surface; a first sealing band engaging said bell-shaped open end of said first metal outer casing to compress the same into engagement with said lower contoured surface of said ceramic ring to form a hermetic seal therebetween; and a second metal outer casing with a closed end and a bell-shaped open end having a diameter slightly greater than the diameter of said upper contoured surface of said ceramic ring, said bell-shaped open end encircling said upper contoured surface; and a second sealing band engaging said bell-shaped open end of said second metal outer casing to compress the same into engagement with said upper contoured surface of said ceramic ring to form a hermetic seal therebetween.
Claim 2
Dependent Claim
247 words
A hermetically sealed alkali metal battery container comprising: a ceramic ring having top and bottom surfaces, said ceramic ring having an outer circumferential surface which is formed so as to have an upper and a lower contoured surface respectively adjacent said top and said bottom surfaces thereof; an inner casing of a solid alkali ion-conductive material with an open end and a closed end; sealing means for bonding said inner casing adjacent its open end to said ceramic ring so that said inner casing extends from said bottom surface of said ceramic ring; a first metal outer casing with a closed end and a bell-shaped open end having a diameter slightly greater than the diameter of said lower contoured surface of said ceramic ring, said bell-shaped open end encircling said lower contoured surface; a first sealing band engaging said bell-shaped open end of said first metal outer casing to compress the same into engagement with said lower contoured surface of said ceramic ring to form a hermetic seal therebetween; and a second metal outer casing with a closed end and a bell-shaped open end having a diameter slightly greater than the diameter of said upper contoured surface of said ceramic ring, said bell-shaped open end encircling said upper contoured surface; and a second sealing band engaging said bell-shaped open end of said second metal outer casing to compress the same into engagement with said upper contoured surface of said ceramic ring to form a hermetic seal therebetween.
Claim 3
Dependent Claim
17 words
The alkali metal battery container of claim 1, wherein: said contoured surfaces are semi-circular in cross section.
Claim 4
Dependent Claim
17 words
The alkali metal battery container of claim 1, wherein: said contoured surfaces extend to the same diameter.
Claim 5
Dependent Claim
42 words
The alkali metal battery container of claims 2 or 3, wherein: said sealing bands are metal and are drawn down over said bell-shaped open ends of said casing to deform the same into sealing contact with respective ones of said contoured surfaces.
Claim 6
Dependent Claim
112 words
A hermetic sealed subassembly for an alkali metal battery which comprises: a ceramic ring having top and bottom surfaces and an outer circumferential surface which is formed to have at least one contoured surface thereon; a metal outer casing having a bell-shaped open end which has a diameter slightly greater than the diameter of said contoured surface of said ceramic ring, said bell-shaped open end of said metal outer casing encircling said contoured surface of said ceramic ring; and a sealing band engaging said bell-shaped open end of said metal outer casing to compress the same into engagement with said contoured surface of said ceramic ring to form a hermetic seal therebetween.
Claim 7
Dependent Claim
112 words
A hermetic sealed subassembly for an alkali metal battery which comprises: a ceramic ring having top and bottom surfaces and an outer circumferential surface which is formed to have at least one contoured surface thereon; a metal outer casing having a bell-shaped open end which has a diameter slightly greater than the diameter of said contoured surface of said ceramic ring, said bell-shaped open end of said metal outer casing encircling said contoured surface of said ceramic ring; and a sealing band engaging said bell-shaped open end of said metal outer casing to compress the same into engagement with said contoured surface of said ceramic ring to form a hermetic seal therebetween.
Claim 8
Dependent Claim
44 words
The hermetic sealed subassembly of claim 5, wherein: said sealing band is a metal band which is drawn down over said bell-shaped open end of said metal outer casing to deform the same into sealing contact with said contoured surface of said ceramic ring.
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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) | 1982-10-08 | 1983-04-09 | 1983-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-08 | 1987-04-09 | 1987-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-08 | 1991-04-09 | 1991-10-09 | $7700.00 | Window Closed / Lapsed |