Patent US5314762A successfully refreshed from Google Patents.
US5314762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable power source
Assignee: Sanyo Electric Co Ltd
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Filing: 1992-06-30
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Granted: 1994-05-24
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Expires: 2012-06-30
Abstract
Abstract The present invention provides a portable power source comprising a fuel cell generating electricity using hydrogen as fuel, a hydrogen storage unit filled with hydrogen absorbing alloy for supplying hydrogen to the fuel cell, a case enclosing the fuel cell and hydrogen storage unit, and a lid for sealing a part of the case when the portable power source is not in use, wherein the lid seals a surface of the case on which at least one air inlet for taking in the air necessary for the fuel cell to generate electricity and a reactant gas outlet for exhausting reactant gas produced by the generation of electricity are formed.
Inventors
- 👤 Akira Hamada
- 👤 Nobuyoshi Nishizawa
- 👤 Hiroshi Mukai
- 👤 Isao Furukawa
- 👤 Takashi Oda
- 👤 Akira Watanabe
- 👤 Takaaki Matsubayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:44
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/04; H01M8/04298; H01M8/04694; H01M8/04746; H01M8/04753; H01M8/02; H01M8/0271; H01M8/04223; H01M8/04225; H01M8/04701; H01M8/04731; H01M8/04776; H01M8/06; H01M8/0606; H01M8/065; H01M8/24; H01M8/2465; H01M8/247; H01M2300/00; H01M2300/0002; H01M2300/0005; H01M2300/0008; H01M8/04007; H01M8/04014; H01M8/04022; H01M8/04082; H01M8/04089; H01M8/04119; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
109 words
A portable power source comprising: a fuel cell generating electricity using hydrogen as fuel; a hydrogen storage unit filled with hydrogen absorbing alloy for supplying hydrogen to the fuel cell; a case having an internal surface enclosing the fuel cell and hydrogen storage unit; and a lid for sealing a part of the case when the portable power source is not in use, wherein the lid seals a surface of the case on which at least one air inlet for taking in the air necessary for the fuel cell to generate electricity and a reactant gas outlet for exhausting reactant gas produced by the generation of electricity are formed.
Claim 2
Dependent Claim
109 words
A portable power source comprising: a fuel cell generating electricity using hydrogen as fuel; a hydrogen storage unit filled with hydrogen absorbing alloy for supplying hydrogen to the fuel cell; a case having an internal surface enclosing the fuel cell and hydrogen storage unit; and a lid for sealing a part of the case when the portable power source is not in use, wherein the lid seals a surface of the case on which at least one air inlet for taking in the air necessary for the fuel cell to generate electricity and a reactant gas outlet for exhausting reactant gas produced by the generation of electricity are formed.
Claim 3
Dependent Claim
51 words
A portable power source of claim 1 wherein part of the internal surface of the case forms part of an inlet duct between the fuel cell and an air inlet, and part of the internal surface forms part of an exhaust duct between the fuel cell and a reactant gas outlet.
Claim 4
Dependent Claim
18 words
A portable power source of claim 2, wherein the hydrogen storage unit is placed in the exhaust duct.
Claim 5
Dependent Claim
31 words
A portable power source of claim 3, wherein the lid seals a surface of the case on which a control panel for controlling the operation of the power source is placed.
Claim 6
Dependent Claim
33 words
A portable power source of claim 4, wherein the hydrogen storage unit includes cylinders filled with hydrogen absorbing alloy as well as a pan for collecting condensate running down from the surfaces thereof.
Claim 7
Dependent Claim
25 words
A portable power source of claim 5, wherein an absorber is placed on the pan for absorbing the condensate running down from the surfaces thereof.
Claim 8
Dependent Claim
34 words
A portable power source of claim 4, wherein the hydrogen storage unit includes cylinders filled with hydrogen absorbing alloy as well as the absorber for absorbing the condensate running down from the surfaces thereof.
Claim 9
Dependent Claim
19 words
A portable power source of claim 1, wherein the case includes clamps for sealing the case with the lid.
Claim 10
Dependent Claim
30 words
A portable power source of claim 8, wherein a sealing member is placed on the edge of the case where the lid fits therewith so as to encircle the edge.
Claim 11
Dependent Claim
18 words
A portable power source of claim 1 further comprising a catalytic burner for consuming unreacted hydrogen by combustion.
Claim 12
Dependent Claim
133 words
A portable power source comprising: a case having an internal surface and an upper part including an upper surface enclosing a fuel cell and a hydrogen storage unit, at least one air inlet and a reactant gas outlet formed on the upper surface, part of an air inlet duct between the air inlet and the fuel cell and part of an exhaust duct between the fuel cell and the reactant gas outlet are formed on the upper surface, and part of the air inlet duct and the exhaust duct are formed on the internal surface of the case; and a lid for sealing the upper part of the case including the upper surface on which the air inlet and reactant gas outlet are formed when the portable power source is not in use.
Claim 13
Dependent Claim
133 words
A portable power source comprising: a case having an internal surface and an upper part including an upper surface enclosing a fuel cell and a hydrogen storage unit, at least one air inlet and a reactant gas outlet formed on the upper surface, part of an air inlet duct between the air inlet and the fuel cell and part of an exhaust duct between the fuel cell and the reactant gas outlet are formed on the upper surface, and part of the air inlet duct and the exhaust duct are formed on the internal surface of the case; and a lid for sealing the upper part of the case including the upper surface on which the air inlet and reactant gas outlet are formed when the portable power source is not in use.
Claim 14
Dependent Claim
18 words
A portable power source of claim 11, wherein the hydrogen storage unit is placed in the exhaust duct.
Claim 15
Dependent Claim
31 words
A portable power source of claim 12, wherein the lid seals a surface of the case on which a control panel for controlling the operation of the power source is placed.
Claim 16
Dependent Claim
33 words
A portable power source of claim 13, wherein the hydrogen storage unit includes cylinders filled with hydrogen absorbing alloy as well as a pan for collecting condensate running down from the surfaces thereof.
Claim 17
Dependent Claim
25 words
A portable power source of claim 14, wherein an absorber is placed on the pan for absorbing the condensate running down from the surfaces thereof.
Claim 18
Dependent Claim
34 words
A portable power source of claim 15, wherein the hydrogen storage unit includes cylinders filled with hydrogen absorbing alloy as well as the absorber for absorbing the condensate running down from the surfaces thereof.
Claim 19
Dependent Claim
19 words
A portable power source of claim 11, wherein the case includes clamps for sealing the case with the lid.
Claim 20
Dependent Claim
30 words
A portable power source of claim 17, wherein a sealing member is placed on the edge of the case where the lid fits therewith so as to encircle the edge.
Claim 21
Dependent Claim
19 words
A portable power source of claim 11, wherein a handle is formed on the lid for a carrying purpose.
References Cited (Backward Citations)
US3664873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-23 | 1997-11-22 | 1998-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-23 | 2001-11-22 | 2002-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-23 | 2005-11-22 | 2006-05-24 | $7700.00 | Window Closed / Lapsed |