# US 7,465,505 B2 · Power supply system, fuel pack constituting the system, and device driven by power generator and power supply system

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- Number: US 7,465,505 B2
- Document ID: US7465505B2
- Status: Granted
- Kind: B2
- Application number: 11/132,766
- Filed: 2005-05-18
- Published: 2005-10-20
- Granted: 2008-12-16
- Earliest claimed: 2000-12-21
- Assignees: Casio Computer Co., Ltd.
- Inventors: Masaharu Shioya
- Web page: https://patentgrep.com/patent/US7465505B2

## CPC

- H01M 8/04007: related to heat exchange
- H01M 8/04: Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M 8/04208: {Cartridges, cryogenic media or cryogenic reservoirs}
- H01M 8/04373: {of auxiliary devices, e.g. reformers, compressors, burners}
- H01M 8/04425: {at auxiliary devices, e.g. reformers, compressors, burners}
- H01M 8/04559: {of fuel cell stacks}
- H01M 8/04567: {of auxiliary devices, e.g. batteries, capacitors}
- H01M 8/04626: {of auxiliary devices, e.g. batteries, capacitors}
- H01M 8/04679: {of fuel cell stacks}
- H01M 8/04686: {of auxiliary devices, e.g. batteries, capacitors}
- H01M 8/04753: {of fuel cell reactants}
- H01M 8/04776: {at auxiliary devices, e.g. reformer, compressor, burner}
- H01M 8/0612: from carbon-containing material
- H01M 16/003: {of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers}
- H01M 2250/30: Fuel cells in portable systems, e.g. mobile phone, laptop
- Y02B 90/10: Applications of fuel cells in buildings
- Y02E 60/50: Fuel cells
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A fuel pack with a space for storing a fuel is provided which includes a case, wherein the case includes a feed port for exhausting the fuel to outside of the fuel pack, and at least a portion of the case is formed of a biodegradable material.

## Claims

### Claim 1

A fuel pack comprising:
a fuel case main body, which includes a space for storing a fuel and is adapted to be removably coupled to a power generation portion that generates power by using the fuel, and which comprises an exposed portion that is exposed with respect to the power generation portion when the fuel case main body is coupled with the power generation portion; and
a feed port for supplying the fuel to the power generation portion;
wherein the fuel case main body comprises a degradable portion made from a degradable material which is degradable into a component of natural soil.

### Claim 2 (depends on 1)

The fuel pack according to claim 1, wherein the fuel case main body is removable from the power generation portion by manipulating the exposed portion.

### Claim 3 (depends on 1)

The fuel pack according to claim 1, wherein the fuel case main body is adapted to be coupled to the power generation portion by manipulating the exposed portion.

### Claim 4 (depends on 1)

The fuel pack according to claim 1, further comprising an intake port for collecting a byproduct generated by the power generation portion.

### Claim 5

A fuel pack comprising:
a case which includes a space for storing a fuel, and which comprises a feed port for exhausting the fuel to outside of the fuel pack;
wherein the case comprises a degradable portion made from a degradable material which is degradable into a component of natural soil.

### Claim 6 (depends on 5)

The fuel pack according to claim 5, wherein the fuel case main body is removable from the power generation portion by manipulating the exposed portion.

### Claim 7 (depends on 5)

The fuel pack according to claim 5, wherein the fuel case main body is adapted to be coupled to the power generation portion by manipulating the exposed portion.

### Claim 8 (depends on 5)

The fuel pack according to claim 5, further comprising an intake port for collecting a by-product generated by the power generation portion.

### Claim 9 (depends on 5)

The fuel pack according to claim 5, wherein at least a part of the fuel case main body is transparent.

### Claim 10 (depends on 5)

The fuel pack according to claim 5, wherein the fuel case main body is at least partially transparent and comprises a graduation for measuring a quantity of the fuel in the fuel case main body.

### Claim 11 (depends on 6)

The fuel pack according to claim 6, further comprising a protecting member which separates the degradable portion of the case from degradation factors for degrading the degradable portion.

### Claim 12 (depends on 1)

The fuel pack according to claim 1, wherein at least a part of the fuel case main body is transparent.

### Claim 13 (depends on 1)

The fuel pack according to claim 1, wherein the fuel case main body is at least partially transparent and comprises a graduation for measuring a quantity of the fuel in the fuel case main body.

### Claim 14 (depends on 11)

The fuel pack according to claim 11, wherein the protecting member is made of a material which is not degradable by the degradation factors.

### Claim 15 (depends on 11)

The fuel pack according to claim 11, wherein the protecting member comprises a film which covers the portion of the case formed of the biodegradable material.

### Claim 16 (depends on 11)

The fuel pack according to claim 11, wherein the protecting member is removable from the case.

### Claim 17

A fuel pack comprising:
a fuel case main body which includes a space for storing a fuel and is adapted to be removably coupled to a power generation portion that generates power by using the fuel, and which comprises an exposed portion that is exposed with respect to the power generation portion when the fuel case main body is coupled with the power generation portion; and
a feed port for supplying the fuel to the power generation portion;
wherein the feed port comprises a degradable portion made from a degradable material which is degradable into a component of natural soil.