US4416955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell sub-assembly
Assignee: United States Department of Energy
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Filing: 1982-01-11
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Granted: 1983-11-22
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Expires: 2002-01-11
Abstract
Abstract A fuel cell sub-assembly comprising a plurality of fuel cells, a first section of a cooling means disposed at an end of the assembly and means for connecting the fuel cells and first section together to form a unitary structure.
Inventors
- 👤 Chang V. Chi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:54
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/24; H01M8/2465; H01M8/2484; H01M8/2485; H01M8/02; H01M8/0202; H01M8/0267; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
53 words
Apparatus comprising: a first fuel cell assembly including: a first plurality of fuel cells arranged one adjacent the other; a first section of a cooling means arranged at an end of said first assembly; and first means for holding said first fuel cells and said first section together to form a unitary structure.
Claim 2
Dependent Claim
53 words
Apparatus comprising: a first fuel cell assembly including: a first plurality of fuel cells arranged one adjacent the other; a first section of a cooling means arranged at an end of said first assembly; and first means for holding said first fuel cells and said first section together to form a unitary structure.
Claim 3
Dependent Claim
59 words
Apparatus in accordance with claim 1 further comprising: a second fuel cell assembly including: a second plurality of fuel cells arranged one adjacent the other; a second section of said cooling means arranged at an end of said second assembly; and second means for holding said second fuel cells and said second section together to form a unitary structure.
Claim 4
Dependent Claim
48 words
Apparatus in accordance with claim 2 wherein: said first and second sub-assemblies are arranged one adjacent the other and such that said first section is adjacent to said second section, whereby said sub-assemblies form a fuel cell stack and said first and second sections form said cooling means.
Claim 5
Dependent Claim
18 words
Apparatus in accordance with claim 3 further comprising: breakable sealing means for preventing leakage from said cooling means.
Claim 6
Dependent Claim
21 words
Apparatus in accordance with claim 4 wherein: said sealing means is disposed at interface areas of said first and second sections.
Claim 7
Dependent Claim
22 words
Apparatus in accordance with claim 5 wherein: said interface areas are located on adjacent end walls of said first and second sections.
Claim 8
Dependent Claim
23 words
Apparatus in accordance with claim 6 wherein: said interface areas are further located on adjacent facing surfaces of said first and second sections.
Claim 9
Dependent Claim
22 words
Apparatus in accordance with claim 5 wherein: said interface areas are located on adjacent facing surfaces of said first and second sections.
Claim 10
Dependent Claim
38 words
Apparatus in accordance with claim 3 or 4 wherein: said first and second sections comprise first and second plates, respectively, said plates when in adjacent relationship together defining one or more closed channels for conveying a cooling gas.
Claim 11
Dependent Claim
70 words
Apparatus in accordance with claim 9 wherein: said first plate has one or more open channels in the surface facing said second plate; the surface of said second plate facing said first plate is flat; and the one or more open channels in said surface of said first plate and the facing flat surface areas of said flat surface of said second plate define said one or more closed channels.
Claim 12
Dependent Claim
74 words
Apparatus in accordance with claim 9 wherein: said first plate has one or more open channels in the surface facing said second plate; said second plate has one or more open channels in the surface facing said first plate; and said one or more open channels in the surface of said first plate and the one or more open channels in the surface of said second plate define said one or more closed channels.
Claim 13
Dependent Claim
26 words
Apparatus in accordance with claim 9 wherein: said first means is internal of said first sub-assembly; and said second means is internal of said second sub-assembly.
Claim 14
Dependent Claim
21 words
Apparatus in accordance with claim 4 wherein: said breakable sealing means is one of a gasket, paste, low-strength adhesive and tape.
Claim 15
Dependent Claim
13 words
Apparatus in accordance with claim 1 wherein: said first section comprises a plate.
Claim 16
Dependent Claim
14 words
Apparatus in accordance with claim 14 wherein: said plate has a flat outer surface.
Claim 17
Dependent Claim
19 words
Apparatus in accordance with claim 14 wherein: the outer surface of said plate has one or more open channels.
Claim 18
Dependent Claim
30 words
Apparatus in accordance with claim 14 wherein: said plate forms a part of the one of the said first plurality of fuel cells at said end of said first assembly.
Claim 19
Dependent Claim
23 words
Apparatus in accordance with claim 1 further comprising: a section of a cooling means arranged at the other end of said first assembly.
Claim 20
Dependent Claim
16 words
Apparatus in accordance with claim 1 wherein: said first means is internal of said first sub-assembly.
References Cited (Backward Citations)
US4233369A
Cited
US4324844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-21 | 1987-05-23 | 1987-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-21 | 1991-05-23 | 1991-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-21 | 1995-05-23 | 1995-11-22 | $7700.00 | Window Closed / Lapsed |