US5153556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature sensor
Assignee: Robert Bosch GmbH
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Filing: 1989-08-17
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Granted: 1992-10-06
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Expires: 2009-08-17
Abstract
Abstract A fast-responding temperature sensor, for measuring temperature of a medium, features a resistance element (12) formed as a film on an insulating substrate (10). The resistance element is disposed in a bubble or dome (11) of ceramic, preferably glass ceramic, which is formed on, and bowed with respect to, the insulating substrate (10).
Inventors
- 👤 Hans Hecht
- 👤 Dietrich Bergfried
- 👤 Richard Muehlheim
- 👤 Botho Ziegenbein
- 👤 Guenther Stecher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:57
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/16; G01K7/18; G01K7/183
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
73 words
Temperature sensor, for measuring the temperature of a medium, having an insulating substrate (10); and a resistance element (12) formed as a resistance layer supported by said substrate; wherein, for faster temperature measurement, a dome or bubble (11) of ceramic material, particularly glass ceramic, is formed on said insulating substrate (10), and said resistance element (12) is formed on said bubble (11), thereby serving to thermally separate said resistance element from said substrate.
Claim 2
Dependent Claim
73 words
Temperature sensor, for measuring the temperature of a medium, having an insulating substrate (10); and a resistance element (12) formed as a resistance layer supported by said substrate; wherein, for faster temperature measurement, a dome or bubble (11) of ceramic material, particularly glass ceramic, is formed on said insulating substrate (10), and said resistance element (12) is formed on said bubble (11), thereby serving to thermally separate said resistance element from said substrate.
Claim 3
Dependent Claim
35 words
Temperature sensor according to claim 1, wherein said bubble contains a membrane (13) produced by thick film technology and reinforced by infiltration of glass; and said resistance element (12) is formed on said membrane (13).
Claim 4
Dependent Claim
24 words
Temperature sensor according to claim 2, wherein a highly-heat-conductive protective layer (15), preferably of glass, is applied as a covering on said resistance element.
Claim 5
Dependent Claim
25 words
Temperature sensor according to claim 2, wherein an intermediate layer (14), preferably of glass, is provided between said membrane (13) and said resistance element (12).
Claim 6
Dependent Claim
25 words
Temperature sensor according to claim 3, wherein an intermediate layer (14), preferably of glass, is provided between said membrane (13) and said resistance element (12).
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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) | 1995-10-06 | 1996-04-06 | 1996-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-06 | 2000-04-06 | 2000-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-06 | 2004-04-06 | 2004-10-06 | $7700.00 | Window Closed / Lapsed |