IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0577653
(2000-05-24)
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발명자
/ 주소 |
- Mooty, Tom
- Clowers, Earl
- Etter, Mark
- Gist, Daily
- Lagaly, Michael
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출원인 / 주소 |
|
대리인 / 주소 |
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인용정보 |
피인용 횟수 :
40 인용 특허 :
99 |
초록
▼
A battery release mechanism for releasably securing a battery to a power tool is disclosed. The battery release mechanism includes a battery receiving portion integral with a handle portion of the power tool and an attachment portion integral with the battery. The attachment portion is configured to
A battery release mechanism for releasably securing a battery to a power tool is disclosed. The battery release mechanism includes a battery receiving portion integral with a handle portion of the power tool and an attachment portion integral with the battery. The attachment portion is configured to engage the battery receiving portion. The battery release mechanism also includes a closure member that is operable with and transversely disposed within the battery receiving portion. The closure member is configured to secure the battery within the battery receiving portion when the closure member is in a "lock" position. The closure member has a first end and a second end opposite the first end. The first end is disposed through a side wall of the tool housing and defines a push button for selectively moving the closure member from the "lock" position to a "release" position. When the closure member is in the "release" position, the battery can be removed from the power tool. A method of releasably securing a battery to a power tool is also disclosed.
대표청구항
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A battery release mechanism for releasably securing a battery to a power tool is disclosed. The battery release mechanism includes a battery receiving portion integral with a handle portion of the power tool and an attachment portion integral with the battery. The attachment portion is configured to
A battery release mechanism for releasably securing a battery to a power tool is disclosed. The battery release mechanism includes a battery receiving portion integral with a handle portion of the power tool and an attachment portion integral with the battery. The attachment portion is configured to engage the battery receiving portion. The battery release mechanism also includes a closure member that is operable with and transversely disposed within the battery receiving portion. The closure member is configured to secure the battery within the battery receiving portion when the closure member is in a "lock" position. The closure member has a first end and a second end opposite the first end. The first end is disposed through a side wall of the tool housing and defines a push button for selectively moving the closure member from the "lock" position to a "release" position. When the closure member is in the "release" position, the battery can be removed from the power tool. A method of releasably securing a battery to a power tool is also disclosed. 300, Grasso et al., 429/026; US-6361891, 20020300, Breault et al., 429/026 d a flow path that feeds both the hydrogen separated by said hydrogen separation mechanism and a residual gas after the separation of hydrogen from the gaseous mixture to said fuel cells, so as to ensure a supply of all hydrogen obtained in all the chemical processes in said chemical reaction device to said fuel cells. 9. A fuel gas production system that produces a hydrogen-rich fuel gas, which is to be supplied to fuel cells, from a raw material, said fuel gas production system comprising: a chemical reaction device that produces a gaseous mixture containing hydrogen from the raw material through a chemical process; a hydrogen separation membrane that has selective permeability to hydrogen and have a feeding face and an extraction face, the feeding face receiving a supply of the gaseous mixture, the extraction face extracting selectively permeating hydrogen from the gaseous mixture; a noxious component reduction unit which reduces concentration of a noxious component, that is harmful to said fuel cells, in a residual gas after the separation of hydrogen from the gaseous mixture through said hydrogen separation membrane; and a purge gas supply unit that introduces the residual gas after the reduction process, as a purge gas for carrying the hydrogen, to the extraction face. 10. A fuel gas production system in accordance with claim 9, wherein the reduction process includes an oxidation of the residual gas. 11. A fuel gas production system in accordance with claim 9, wherein the reduction process includes a catalytic reaction of the residual gas. 12. A fuel gas production system in accordance with claim 9, wherein said purge gas supply unit introduces a flow of an off gas discharged from said fuel cells as part of the purge gas. 13. A fuel gas production system in accordance with claim 12, wherein said purge gas supply unit leads the flow of the off gas to an upper stream side of said chemical reaction device. 14. A fuel gas production system in accordance with claim 12, wherein said purge gas supply unit leads the off gas to an intermediate position between the feeding face and said noxious component reduction unit. 15. A fuel gas production system in accordance with claim 12, wherein said purge gas supply unit leads the off gas to an intermediate position between said noxious component reduction unit and the extraction face. 16. A fuel gas production system in accordance with claim 9, wherein said purge gas supply unit comprises a circulation mechanism that circulates an anode off gas discharged from anodes of said fuel cells as part of the purge gas to the extraction face. 17. A fuel gas production system in accordance with claim 9, said fuel gas production system further comprising: a memory configured to store a predetermined relationship between a load on said fuel cells and a flow rate of the purge gas; a measuring unit configured to measure the load on said fuel cells; and a flow rate regulation unit that regulates a flow rate of the purge gas according to the load. 18. A fuel gas production system in accordance with claim 17, wherein said measuring unit also measures a rate of change in the load on said fuel cells, and said flow rate regulation unit raises the flow rate to a specific level that is significantly greater than the flow rate specified by the relationship when the observed rate of change is not less than a predetermined level. 19. A fuel gas production system in accordance with claim 17, wherein said purge gas supply unit comprises an additional gas source to supplement the flow of the purge gas, and said flow rate regulation unit utilizes said additional gas source when the flow rate of the purge gas is insufficient. 20. A fuel gas production system in accordance with claim 9, wherein said purge gas supply unit introduces an oxygen-containing gas into the flow of the purge gas, said fuel gas production system further comprising: a warm-up determination unit that determines whether or not said fuel cells have already been warmed up; and a control unit that controls said purge gas supply unit to increase a quantity of the oxygen-containing gas introduced into the flow of the purge gas when it is determined that said fuel cells have not yet been warmed up. 21. A fuel gas production system in accordance with claim 9, said fuel gas production system further comprising: a steam separation mechanism that separates steam from the fuel gas prior to its supply to said fuel cells. 22. A fuel cells system, comprising: a fuel gas production system that produces a hydrogen-rich fuel gas from a raw material; and said fuel cells that receive a supply of the fuel gas from said fuel gas production system to generate electric power, said fuel gas production system comprising: a chemical reaction device that produces a gaseous mixture containing hydrogen from the raw material through a chemical process; a hydrogen separation membrane that has selective permeability to hydrogen and have a feeding face and an extraction face, the feeding face receiving a supply of the gaseous mixture, the extraction face extracting selectively permeating hydrogen from the gaseous mixture; a noxious component reduction unit which reduces concentration of a noxious component, that is harmful to said fuel cells, in a residual gas after separation of hydrogen from the gaseous mixture through said hydrogen separation membrane; and a purge gas supply unit that introduces the residual gas after the reduction process, as a flow of a purge gas for carrying out the hydrogen, to the extraction face. 23. A fuel gas production system that produces a hydrogen-rich fuel gas, which is to be supplied to fuel cells, from a raw material, said fuel gas production system comprising: a chemical reaction device that produces a gaseous mixture containing hydrogen from the raw material through a chemical process; a hydrogen separation membrane that has selective permeability to hydrogen and have a feeding face and an extraction face, the feeding face receiving a supply of the gaseous mixture, the extraction face extracting selectively permeating hydrogen from the gaseous mixture; and a purge gas supply unit that introduces a cathode off gas discharged from cathodes of said fuel cells as a purge gas for carrying out the hydrogen to the extraction face. 24. A fuel gas production system in accordance with claim 23, wherein said purge gas supply unit comprises a circulation mechanism that circulates an anode off gas discharged from anodes of said fuel cells as part of the purge gas to the extraction face. 25. A fuel gas production system in accordance with claim 23, said fuel gas production system further comprising: a memory configured to store a predetermined relationship between a load on said fuel cells and flow rate of the purge gas; a measuring unit configured to measure a load on said fuel cells; and a flow rate regulation unit that regulates a flow rate of the purge gas according to the a load on. 26. A fuel gas production system in accordance with claim 25, wherein said measuring unit also measures a rate of change in a load on said fuel cells, and said flow rate regulation unit raises the flow rate to a specific level that is significantly greater than the flow rate specified by the relationship when the observed rate of change is not less than a predetermined level. 27. A fuel gas production system in accordance with claim 25, wherein said purge gas supply unit comprises an additional gas source to supplement the flow of the purge gas, and said flow rate regulation unit utilizes said additional gas source when the flow rate of the purge gas is insufficient. 28. A fuel gas production system in accordance with claim 23, wherein said purge gas supply unit is a mechanism that introduces an oxygen-containing gas into the flow of the purge gas, said fuel gas production system further comprising: a warm-up determination unit that determines whether or not said fuel cells have already been warmed up; and a control unit that controls said purge gas supply unit to increase a quantity of the oxygen-containing gas introduced into the flow of the purge gas when it is determined that said fuel cells have not yet been warmed up. 29. A fuel gas production system in accordance with claim 23, said fuel gas production system further comprising: a steam separation mechanism that separates steam from the fuel gas prior to supply of the fuel gas to said fuel cells. 30. A fuel cells system, comprising: a fuel gas production system that produces a hydrogen-rich fuel gas from a raw material; and said fuel cells that receive a supply of the fuel gas from said fuel gas production system to generate electric power, said fuel gas production system comprising: a chemical reaction device that produces a gaseous mixture containing hydrogen from the raw material through a chemical process; a hydrogen separation membrane that has selective permeability to hydrogen and have a feeding face and an extraction face, the feeding face receiving a supply of the gaseous mixture, the extraction face extracting selectively permeating hydrogen from the gaseous mixture; a purge gas supply unit that introduces a cathode off gas, which is discharged from cathodes of said fuel cells, as a flow of a purge gas for carrying out the hydrogen, to the extraction face. 31. A fuel gas production system that produces a hydrogen-rich fuel gas, which is to be supplied to fuel cells, from a raw material, said fuel gas production system comprising: a chemical reaction device that produces a gaseous mixture containing hydrogen from the raw material through a chemical process; a hydrogen separation membrane that has selective permeability to hydrogen and have a feeding face and an extraction face, the feeding face receiving a supply of the gaseous mixture, the extraction face extracting selectively permeating hydrogen from the gaseous mixture; a reduction unit where a reduction process proceeds to reduce concentration of at least one of hydrogen and a specific component, which has high reactivity to hydrogen, included in a gas prior to supply to said fuel cells; and a purge gas supply unit that introduces a processed gas after the reduction process, as a flow of a purge gas for carrying out the hydrogen, to the extraction face. 32. A fuel gas production system in accordance with claim 31, said fuel gas production system further comprising: a memory configured to store a predetermined relationship between a load on said fuel cells and flow rate of the purge gas; a measuring unit configured to measure a load on said fuel cells; and a flow rate regulation unit that regulates a flow rate of the purge gas according to the a load on. 33. A fuel gas production system in accordance with claim 32, wherein said measuring unit also measures a rate of change in a load on said fuel cells, and said flow rate regulation unit raises the flow rate to a specific level that is significantly greater than the flow rate specified by the relationship when the observed rate of change is not less than a predetermined level. 34. A fuel gas production system in accordance with claim 32, wherein said purge gas supply unit comprises an additional gas source to supplement the flow of the purge gas, and said flow rate regulation unit utilizes said additional gas source when the flow rate of the purge gas is insufficient. 35. A fuel gas production system in accordance with claim 31, wherein said purge gas supply unit is a mechanism that introduces an oxygen-containing gas into the flow of the purge gas, said fuel gas production system further including: a warm-up determination unit that determines whether or not said fuel cells have already been warmed up; and a control unit that controls said purge gas supply unit to increase a quantity of the oxygen-containing gas
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