US5080067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition timing control device for internal combustion engine
Assignee: Yamaha Marine Co Ltd
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Filing: 1988-12-16
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Granted: 1992-01-14
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Expires: 2008-12-16
Abstract
Abstract A temperature compensated ignition control device wherein the temperature sensor is mounted on the circuit for the spark advance and the complete assembly is mounted in proximity to a portion of the engine for sensing its temperature and advancing the spark during cold starting.
Inventors
- 👤 Kazuhiro Nakamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:34
CPC Classifications
F; F02; F02B; F02B61/00; F02B61/04; F02B61/045; F02P; F02P5/00; F02P5/04; F02P5/05; F02P5/14; F02P5/145; F02P5/155; F02P5/1558; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/40
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
114 words
An electronic ignition control device for an internal combustion engine comprised of a printed circuit board including an SCR and a firing control circuit for controlling the firing of a spark plug of the engine, said firing control circuit including means for advancing the timing of firing in response to a low temperature signal, temperature responsive means for sensing temperature and supplying a signal to said printed circuit board to advance the spark at a low temperature mounted on said printed circuit board and mounted as a unit with said firing control circuit and means for mounting said firing control circuit with said temperature responsive means in proximity to a part of the engine.
Claim 2
Dependent Claim
114 words
An electronic ignition control device for an internal combustion engine comprised of a printed circuit board including an SCR and a firing control circuit for controlling the firing of a spark plug of the engine, said firing control circuit including means for advancing the timing of firing in response to a low temperature signal, temperature responsive means for sensing temperature and supplying a signal to said printed circuit board to advance the spark at a low temperature mounted on said printed circuit board and mounted as a unit with said firing control circuit and means for mounting said firing control circuit with said temperature responsive means in proximity to a part of the engine.
Claim 3
Dependent Claim
35 words
An ignition control device as set forth in claim 1 wherein the printed circuit board and temperature responsive means are potted and mounted in a housing that is affixed to a side of the engine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-01-13 | 1995-07-15 | 1996-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-13 | 1999-07-15 | 2000-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-13 | 2003-07-15 | 2004-01-14 | $7700.00 | Window Closed / Lapsed |