A cartridge includes a first housing, a second housing within the first housing, and a colorant. The first housing has an interior surface and an exterior surface, and the second housing contains an alcohol fuel or a hydrocarbon fuel and has an interior surface and an exterior surface. The colorant
A cartridge includes a first housing, a second housing within the first housing, and a colorant. The first housing has an interior surface and an exterior surface, and the second housing contains an alcohol fuel or a hydrocarbon fuel and has an interior surface and an exterior surface. The colorant is supported by at least a portion of the interior surface of the first housing.
대표청구항▼
What is claimed is: 1. A cartridge, comprising: a first housing having an interior surface and an exterior surface; a second housing within the first housing, the second housing containing an alcohol fuel or a hydrocarbon fuel and having an interior surface and an exterior surface; and a first colo
What is claimed is: 1. A cartridge, comprising: a first housing having an interior surface and an exterior surface; a second housing within the first housing, the second housing containing an alcohol fuel or a hydrocarbon fuel and having an interior surface and an exterior surface; and a first colorant, not in contact with the alcohol fuel or the hydrocarbon fuel, that is supported by at least a portion of the interior surface of the first housing; wherein if the alcohol fuel or the hydrocarbon fuel leaks from the second housing the alcohol fuel or the hydrocarbon fuel contacts the colorant and the alcohol fuel or the hydrocarbon fuel becomes colored and the leak thereby visible. 2. The cartridge of claim 1, wherein the first colorant contacts the interior surface of the first housing. 3. The cartridge of claim 1, wherein the first colorant further is supported by at least a portion of the exterior surface of the second housing. 4. The cartridge of claim 3, wherein the first colorant contacts the exterior surface of the second housing. 5. The cartridge of claim 1, further comprising a second colorant that is supported by at least a portion of the exterior surface of the second housing. 6. The cartridge of claim 5, wherein the second colorant contacts the exterior surface of the second housing. 7. The cartridge of claim 5, wherein the second colorant is different from the first colorant. 8. The cartridge of claim 1, wherein the second housing contains an alcohol fuel. 9. The cartridge of claim 8, wherein the alcohol fuel comprises methanol. 10. The cartridge of claim 1, wherein the first colorant comprises a powder colorant. 11. A cartridge, comprising: a first housing having an interior surface and an exterior surface; a second housing within the first housing, the second housing containing an alcohol fuel or a hydrocarbon fuel and having an interior surface and an exterior surface; and a colorant, not in contact with the alcohol fuel or the hydrocarbon fuel, that is supported by at least a portion of the exterior surface of the second housing; wherein if the alcohol fuel or the hydrocarbon fuel leaks from the second housing the alcohol fuel or the hydrocarbon fuel contacts the colorant and the alcohol fuel or the hydrocarbon fuel becomes colored and the leak thereby visible. 12. The cartridge of claim 11, wherein the colorant contacts the exterior surface of the second housing. 13. The cartridge of claim 11, wherein the second housing contains an alcohol fuel. 14. The cartridge of claim 13, wherein the alcohol fuel comprises methanol. 15. The cartridge of claim 11, wherein the colorant comprises a powder colorant. 16. A cartridge, comprising: a cartridge housing; a mixture comprising a first colorant and an alcohol fuel or a hydrocarbon fuel within the cartridge housing; and a fuel outlet including a membrane that is liquid-impermeable and vapor-permeable, wherein the alcohol fuel or the hydrocarbon fuel can pass through the membrane in vapor form but not in liquid form. 17. The cartridge of claim 16, wherein the membrane is impermeable to the first colorant. 18. The cartridge of claim 16, wherein the membrane comprises silicone. 19. The cartridge of claim 16, wherein the membrane comprises poly(dimethyl)silicone or poly(trimethyl) silyl propyne. 20. The cartridge of claim 16, wherein the membrane comprises a material selected from the group consisting of fluorocarbon polymers, polyethylene, polypropylene, polycarbonates, polyimides, polysulfones, polysulfides, polyurethanes, polyesters, cellulose, and combinations thereof. 21. The cartridge of claim 16, wherein the first colorant comprises a liquid colorant or a powder colorant. 22. The cartridge of claim 16, further comprising a second colorant that is different from the first colorant. 23. The cartridge of claim 16, wherein the mixture comprises at most about one percent by weight of the first colorant. 24. The cartridge of claim 16, wherein the mixture comprises an alcohol fuel. 25. The cartridge of claim 24, wherein the alcohol fuel comprises methanol. 26. A cartridge, comprising: a first housing; a second housing, within the first housing, containing an alcohol fuel or a hydrocarbon fuel; and a first colorant, not in contact with the alcohol fuel or the hydrocarbon fuel; wherein if the alcohol fuel or the hydrocarbon fuel leaks from the second housing the alcohol fuel or the hydrocarbon fuel contacts the colorant and the alcohol fuel or the hydrocarbon fuel becomes colored and the leak thereby visible. 27. The cartridge of claim 26, wherein the second housing includes two layers and the first colorant is between the two layers. 28. The cartridge of claim 26, wherein (a) there is a space between the first housing and the second housing, (b) the cartridge further includes a fuel outlet extending through the space and extending to the second housing, the fuel outlet having an exterior surface exposed to the space; and (c) the first colorant is supported by at least a portion of the exterior surface of the fuel outlet.
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이 특허에 인용된 특허 (5)
Beecher Gary R. (Laurel) Kemper David L. (Silver Spring) Jordan John E. (Germantown MD), Apparatus and method for determination of concentrations.
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