Combustible gas sensing element with cantilever support
First Claim
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1. A catalytically activated combustible gas sensing element, comprising:
- a filament of resistance wire forming a coil, wherein a first end of the resistance wire is attached to a first support post and a second end of the resistance wire is attached to a second support post;
a cantilever support supporting the coil, wherein the cantilever support is attached to a third support post, and wherein the cantilever support is disposed either above the resistance wire or below the resistance wire; and
a catalytic bead substantially surrounding the coil and cantilever.
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Abstract
A catalytically activated combustible gas sensing element includes a filament of resistance wire forming a coil, wherein a first end of the resistance wire is attached to a first support post and a second end of the resistance wire is attached to a second support post, a cantilever support supporting the coil, wherein the cantilever support is attached to a third support post, and a catalytic bead substantially surrounding the coil and cantilever.
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Citations
28 Claims
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1. A catalytically activated combustible gas sensing element, comprising:
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a filament of resistance wire forming a coil, wherein a first end of the resistance wire is attached to a first support post and a second end of the resistance wire is attached to a second support post; a cantilever support supporting the coil, wherein the cantilever support is attached to a third support post, and wherein the cantilever support is disposed either above the resistance wire or below the resistance wire; and a catalytic bead substantially surrounding the coil and cantilever. - View Dependent Claims (2, 3, 4, 5, 6, 7, 10, 11, 12, 13)
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8. A catalytically activated combustible gas sensing element, comprising:
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a filament of resistance wire forming a coil, wherein a first end of the filament of resistance wire is attached to a first support post and a second end of the filament of resistance wire is attached to a second support post; and a cantilever support supporting the coil, wherein the cantilever support is attached to a third support post, wherein the cantilever support is disposed within a catalytic bead, but does not contact the filament of resistance wire, the catalytic bead substantially surrounding the coil. - View Dependent Claims (9, 25, 26)
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14. A catalytically activated combustible gas sensing element comprising:
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a filament of resistance wire forming a coil, wherein the resistance wire is of a diameter equal to or less than 0.5 millimeters, wherein a first end of the resistance wire is attached to a first support post and a second end of the resistance wire is attached to a second support post; and a cantilever support adapted to support the coil, wherein the cantilever support is attached to a third support post, and wherein the cantilever support is disposed either above the resistance wire or below the resistance wire; wherein the resistance wire can withstand more than eight drops of one meter onto concrete without breakage. - View Dependent Claims (15, 16, 17, 18, 21, 22)
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19. A catalytically activated combustible gas sensing element comprising:
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a filament of resistance wire forming a coil, wherein the resistance wire is of a diameter equal to or less than 0.5 millimeters, wherein a first end of the resistance wire is attached to a first support post and a second end of the resistance wire is attached to a second support post; and a cantilever support adapted to support the coil, wherein the cantilever support is attached to a third support post, wherein the cantilever support is disposed within a catalytic bead, but does not contact the filament of resistance wire, and wherein the resistance wire can withstand more than eight drops of one meter onto concrete without breakage. - View Dependent Claims (20, 23, 24, 27, 28)
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Specification