US5128514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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 07:37
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.
References Cited (Backward Citations)
US2152934A
Cited
US3102201A
Cited
DE1123841B
Cited
US3875413A
Cited
DD137011A1
Cited
DD151093A2
Cited
US4338281A
Cited
US4389876A
Cited
US4539431A
Cited
DE3324232A1
Cited
EP0177724A1
Cited
US4644141A
Cited
DE3527857A1
Cited
US4754141A
Cited
US4792840A
Cited
US4859858A
Cited
US4820929A
Cited
US4868537A
Cited
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 |