US5160912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermistor
Assignee: Vishay Dale Electronics LLC
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Filing: 1990-09-07
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Granted: 1992-11-03
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Expires: 2010-09-07
Abstract
Abstract A thermistor chip has an elongated ceramic thermistor body with an outside surface and opposite ends. A dielectric envelope excapsulates the outer surface of the body, and conductive terminal caps are formed on the end of the body. The material of the thermistor is Mn 2 O 3 , NiO, Co 3 O 4 , Al 2 O 3 , CuO, or Fe 2 O 3 .
Inventors
- 👤 Francis M. Burke
- 👤 William L. Buchanan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:12
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/02; H01C7/00; H01C7/04; H01C7/042; H01C7/043
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
79 words
A thermistor, comprising, an elongated ceramic monolithic thermistor body being free from internal electrodes, and having an outer surface and opposite ends, a dielectric envelope encapsulating the outer surface of said body, and conductive terminal caps on the end of said body in electrical contact only with the ends of said body, said body being comprises substantially of Mn 2 O 3 , NiO, Co 3 O 4 , Al 2 O 3 , CuO, and FeO 3 .
Claim 2
Dependent Claim
79 words
A thermistor, comprising, an elongated ceramic monolithic thermistor body being free from internal electrodes, and having an outer surface and opposite ends, a dielectric envelope encapsulating the outer surface of said body, and conductive terminal caps on the end of said body in electrical contact only with the ends of said body, said body being comprises substantially of Mn 2 O 3 , NiO, Co 3 O 4 , Al 2 O 3 , CuO, and FeO 3 .
Claim 3
Dependent Claim
17 words
The thermistor of claim 1 wherein said dielectric envelope is comprised of a ceramic oxide loaded dielectric.
Claim 4
Dependent Claim
20 words
The thermistor of claim 2 wherein said dielectric envelope is comprised of a low K Al 2 O 3 .
Claim 5
Dependent Claim
26 words
The thermistor of claim 1 wherein terminal means are on the ends of said body and are comprised of layers of silver, Ni, Sn and Pb.
Claim 6
Dependent Claim
28 words
The thermistor of claims 2 or 3 wherein terminal means are on the ends of said body and are comprised of layers of silver, Ni, Sn and Pb.
References Cited (Backward Citations)
US4232214A
Cited
US4786888A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-03 | 1996-05-04 | 1996-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-03 | 2000-05-04 | 2000-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-03 | 2004-05-04 | 2004-11-03 | $7700.00 | Window Closed / Lapsed |