Patent US5128514A successfully refreshed from Google Patents.
US5128514A
Expired / Lapsed
US
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Black radiator for use as an emitter in calibratable gas sensors
Assignee: Siemens AG
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Filing: 1988-06-29
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Granted: 1992-07-07
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Expires: 2008-06-29
Abstract
Abstract The black radiator contains a doped, crystalline silicon member having a honeycombed surface and contains a controllable electrical heating mechanism with which the silicon member can be heated. The heating mechanism has a heating coil that is a doped silicon structure that is oppositely doped to the doping of the silicon member and to which a controllable voltage is applied. The manufacturing method provides that the silicon member having a honeycombed surface be manufactured from an n-silicon member by electrolytic etching.
Inventors
- 👤 Volker Lehmann
- 👤 Helmut Foell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:46
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/22; H05B3/26; H05B3/265; G; G01; G01J; G01J5/00; G01J5/52; G01J5/53; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/35; G01N21/3504; H05B2203/00; H05B2203/032
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
A black radiator having adjustable temperature for use as an emitter in calibratable gas sensors, comprising: a) a doped, crystalline silicon member having a honeycombed surface on a first side that emits radiation as a function of a temperature level of the silicon member; and b) a controllable electrical heating mechanism on a second side of the silicon member with which said silicon member can be heated.
Claim 2
Dependent Claim
67 words
A black radiator having adjustable temperature for use as an emitter in calibratable gas sensors, comprising: a) a doped, crystalline silicon member having a honeycombed surface on a first side that emits radiation as a function of a temperature level of the silicon member; and b) a controllable electrical heating mechanism on a second side of the silicon member with which said silicon member can be heated.
Claim 3
Dependent Claim
92 words
A black radiator having adjustable temperature for use as an emitter in calibratable gas sensors, comprising: a) a doped, crystalline silicon member having a honeycombed surface on a first side, and b) a controllable electrical heating mechanism on a second side of said silicon member with which said silicon member can be heated, the heating mechanism being a heating coil that is manufactured as a doped silicon structure in said silicon member and that is oppositely doped to the doping of the silicon member and to which a controllable voltage is connected.
Claim 4
Dependent Claim
92 words
A black radiator having adjustable temperature for use as an emitter in calibratable gas sensors, comprising: a) a doped, crystalline silicon member having a honeycombed surface on a first side, and b) a controllable electrical heating mechanism on a second side of said silicon member with which said silicon member can be heated, the heating mechanism being a heating coil that is manufactured as a doped silicon structure in said silicon member and that is oppositely doped to the doping of the silicon member and to which a controllable voltage is connected.
Claim 5
Dependent Claim
21 words
The black radiator according to claim 2, wherein the heating mechanism is applied to a surface lying opposite the honeycombed surface.
Claim 6
Dependent Claim
16 words
The black radiator according to claim 2, wherein the honeycombed surface is produced by electrolytic etching.
Claim 7
Dependent Claim
97 words
A black radiator having an adjustable temperature for use as an emitter in calibratable gas sensors, comprising: a doped, crystalline silicon member having a honeycombed surface on a first side, said silicon member having a first doping; and at least one meandering-shaped heating coil on a second side, opposed to said first side, of said silicon member, said heating coil being a doped silicon structure in said second side of said silicon member, said doping of said second side being opposite to said doping of said silicon member; wherein said heating coil has at least two terminals.
Claim 8
Dependent Claim
97 words
A black radiator having an adjustable temperature for use as an emitter in calibratable gas sensors, comprising: a doped, crystalline silicon member having a honeycombed surface on a first side, said silicon member having a first doping; and at least one meandering-shaped heating coil on a second side, opposed to said first side, of said silicon member, said heating coil being a doped silicon structure in said second side of said silicon member, said doping of said second side being opposite to said doping of said silicon member; wherein said heating coil has at least two terminals.
Claim 9
Dependent Claim
16 words
The black radiator according to claim 5, wherein the honeycombed surface is produced by electrolytic etching.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-07 | 1996-01-06 | 1996-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-07 | 2000-01-06 | 2000-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-07 | 2004-01-06 | 2004-07-07 | $7700.00 | Window Closed / Lapsed |