IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0430147
(2003-05-05)
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발명자
/ 주소 |
- Edlund, David J.
- Pledger, William A.
- Studebaker, R. Todd
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
28 인용 특허 :
164 |
초록
▼
Hydrogen purification membranes, hydrogen purification devices, and fuel processing and fuel cell systems that include hydrogen purification devices. The hydrogen purification membranes include a metal membrane, which is at least substantially comprised of palladium or a palladium alloy. In some emb
Hydrogen purification membranes, hydrogen purification devices, and fuel processing and fuel cell systems that include hydrogen purification devices. The hydrogen purification membranes include a metal membrane, which is at least substantially comprised of palladium or a palladium alloy. In some embodiments, the membrane contains trace amounts of carbon, silicon, and/or oxygen. In some embodiments, the membranes form part of a hydrogen purification device that includes an enclosure containing a separation assembly, which is adapted to receive a mixed gas stream containing hydrogen gas and to produce a stream that contains pure or at least substantially pure hydrogen gas therefrom. In some embodiments, the membrane(s) and/or purification device forms a portion of a fuel processor, and in some embodiments, the membrane(s) and/or purification device forms a portion of a fuel processing or fuel cell system.
대표청구항
▼
Hydrogen purification membranes, hydrogen purification devices, and fuel processing and fuel cell systems that include hydrogen purification devices. The hydrogen purification membranes include a metal membrane, which is at least substantially comprised of palladium or a palladium alloy. In some emb
Hydrogen purification membranes, hydrogen purification devices, and fuel processing and fuel cell systems that include hydrogen purification devices. The hydrogen purification membranes include a metal membrane, which is at least substantially comprised of palladium or a palladium alloy. In some embodiments, the membrane contains trace amounts of carbon, silicon, and/or oxygen. In some embodiments, the membranes form part of a hydrogen purification device that includes an enclosure containing a separation assembly, which is adapted to receive a mixed gas stream containing hydrogen gas and to produce a stream that contains pure or at least substantially pure hydrogen gas therefrom. In some embodiments, the membrane(s) and/or purification device forms a portion of a fuel processor, and in some embodiments, the membrane(s) and/or purification device forms a portion of a fuel processing or fuel cell system. pathways and alternatively underlie different combinations of the weights. 2. The exercise dumbbell system of claim 1, wherein the notches and the grooves in the weights are configured and arranged in such a manner that the weight selectors are operable to underlie any combination of respective said weights. 3. The exercise dumbbell system of claim 2, wherein the weights include a first weight at each end of the handle, a second weight at each end of the handle, and a third weight at each end of the handle, and each said first weight weighs twice as much as each said second weight, and each said second weight weighs twice as much as each said third weight. 4. The exercise dumbbell system of claim 1, wherein each of the weight selectors is movable laterally between a first position, underlying only a respective first said weight, and a second position underlying only a respective second said weight. 5. The exercise dumbbell system of claim 4, wherein each of the weight selectors is movable laterally between the second position and a third position, underlying both the respective first said weight and the respective second said weight. 6. The exercise dumbbell system of claim 1, further comprising at least one latch connected to the weight selectors and operable to discourage unintended movement of the weight selectors relative to the weight holders. 7. The exercise dumbbell system of claim 6, wherein a spring is compressed between the at least one latch and one of the weight selectors, and the spring biases the at least one latch into engagement with a respective one of the weight holders. 8. The exercise dumbbell system of claim 7, wherein the spring exerts force in a direction parallel to the longitudinal axis. 9. The exercise dumbbell system of claim 1, wherein the weight selectors include a first weight selector disposed at a first end of the handle, and an independently operable, second weight selector disposed at an opposite, second end of the handle. 10. The exercise dumbbell system of claim 1, wherein the weight holders include multiple dividers secured to opposite ends of the handle, and axially spaced apart from one another to accommodate respective said weights therebetween. 11. The exercise dumbbell system of claim 10, wherein one of the weight selectors is movably mounted between an innermost divider and an outermost divider at one end of the handle, and another of the weight selectors is movably mounted between an innermost divider and an outermost divider at an opposite end of the handle. 12. The exercise dumbbell system of claim 11, wherein each of the weight selectors has an intermediate portion that is supported by an upper edge of at least one intermediate divider disposed between a respective said innermost divider and a respective said outermost divider. 13. The exercise dumbbell system of claim 1, wherein each of the weight selectors includes a beam portion that spans more than one of the weights, and the weight engaging members are L-shaped hooks that extend downward from the beam portion and then toward respective said weights. 14. The exercise dumbbell system of claim 1, wherein each of the weight selectors includes a beam portion that is slidably mounted on a respective one of the weight holders. 15. The exercise dumbbell system of claim 14, further comprising a latching means movably mounted on each said beam portion, for latching a respective said beam portion in one of several laterally displaced positions along a respective one of the weight holders. 16. The exercise dumbbell system of claim 15, wherein the latching means includes a respective spring-biased member on each said beam portion that is configured to releasably engage a respective one of the weight holders. 17. The exercise dumbbell system of claim 14, further comprising laterally spaced indicia on respective said weight holders, wherein each said beam portion aligns with respective said indicia to indicate which said weights are conne cted to the handle. 18. The exercise dumbbell system of claim 1, wherein axially extending bar segments extend through respective said weight holders, and the weights are provided with upwardly opening slots to accommodate insertion of respective said bar segments. 19. The exercise dumbbell system of claim 1, further comprising a base sized and configured to support the weights in respective storage positions. 20. The exercise dumbbell system of claim 19, wherein each of the weight selectors includes a beam portion that spans more than one of the weights, and the weight engaging members are L-shaped hooks that extend downward from the beam portion and then toward respective said weights. s of said inner and said outer drive ring, each said inner and said outer side hole respectively receiving a ball therein, said shaft having its opposite ends respectively protruding out of said fixing sleeve and said inner gear cover and then clasped in position by a retaining ring, said inner drive ring, said outer drive ring, said clutch and said balls together mounted on said shaft and respectively received in said chambers of said solar gear and said inner gear cover; and said inner gear cover able to be actuated to always rotated clockwise whether said shaft is driven to rotate clockwise or counterclockwise. 2. The one-way output device with a clockwise-counterclockwise unit as claimed in claim 1, wherein said inner and said outer drive ring are respectively shaped octagonal and respectively have eight outer circumferential surfaces, and the number of said inner side and outer side balls conform to said outer circumferential surfaces of said inner and said outer drive ring. 3. The one-way output device with a clockwise-counterclockwise rotating unit as claimed in claim 2, wherein the position angular difference between said inner drive ring and said outer drive ring is about 23 degrees.
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