US3839692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal limiter construction for one or more electrical circuits and method of making the same
Assignee: MICRO DEVICES CORP
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Filing: 1973-01-08
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Granted: 1974-10-01
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Expires: 1993-01-08
Abstract
Abstract This invention relates to a thermal limiter construction which can be used to limit one or more electrical circuits and comprises a thermally responsive device having leads for being interconnected into such electrical circuit or circuits and a plurality of electrically operated heaters disposed adjacent the device and each being adapted to cause the device to open the circuit or circuits when heated by the respective heater a certain amount.
Inventors
- 👤 E Plasko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:21
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/46; H01H85/04; H01H85/041; H01H85/044; H01R; H01R13/00; H01R13/66; H01R13/68; H01H85/20; H01H2085/2075; H01H2085/466
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
115 words
A thermal limiter construction for at least one electrical circuit comprising a thermally responsive device of a generally cylindrical configuration having lead means for being interconnected into said circuit, a plurality of electrically operated carbon resistance heater means each of a generally cylindrical configuration disposed adjacent said device and each being adapted to cause said device to open said circuit when heated by the respective heater means a certain amount, said heater means each being disposed in selected positions relative to said device, and a support means supporting said device and said heater means in said selected positions relative to eAch other and holding said device in abutting engagement with each of said heater means.
Claim 2
Dependent Claim
115 words
A thermal limiter construction for at least one electrical circuit comprising a thermally responsive device of a generally cylindrical configuration having lead means for being interconnected into said circuit, a plurality of electrically operated carbon resistance heater means each of a generally cylindrical configuration disposed adjacent said device and each being adapted to cause said device to open said circuit when heated by the respective heater means a certain amount, said heater means each being disposed in selected positions relative to said device, and a support means supporting said device and said heater means in said selected positions relative to eAch other and holding said device in abutting engagement with each of said heater means.
Claim 3
Dependent Claim
29 words
A contruction as set forth in claim 1 wherein said support means has means for detachably securing said device in its said selected position relative to said heater means.
Claim 4
Dependent Claim
33 words
A construction as set forth in claim 1 wherein said heater means each have a longitudinal axis and are supported by said support means with the axes thereof disposed in spaced parallel relation.
Claim 5
Dependent Claim
48 words
A construction as set forth in claim 3 wherein said device has a longitudinal axis and is supported by said support means so that said axis thereof is disposed transverse to said axes of said heater means while said device makes said abutting contact with said heater means.
Claim 6
Dependent Claim
48 words
A construction as set forth in claim 3 wherein said device has a longitudinal axis and is supported by said support means so that said axis thereof is disposed parallel to said axes of said heater means while said device makes said abutting contact with said heater means.
References Cited (Backward Citations)
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Cited
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US2421953A
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US2956210A
Cited
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Cited
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Cited
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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) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |