US4061122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spark plug
Assignee: Individual
•
Filing: 1976-01-08
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Granted: 1977-12-06
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Expires: 1996-01-08
Abstract
Abstract A spark plug generally similar to standard design including a body member supporting a pair of electrodes to provide a spark gap in the combustion chamber of an internal combustion engine, the side electrode carrying a projecting extension outside the spark gap but still within the flame ignition and combustion zone of the engine so as to provide a reaction member which enhances the action of catalytic agents in the fuel or alternatively incorporated in the reaction member, itself.
Inventors
- 👤 Robert G. Edgar
- 👤 Miriam E. Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:59
CPC Classifications
F; F02; F02P; F02P23/00; H; H01; H01T; H01T13/00; H01T13/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A spark plug for an internal combustion engine which comprises a body member, a pair of electrodes supported by said body member to provide a spark gap in the combustion chamber of the engine, and a reaction member supported adjacent said spark gap so as to lie within the flame ignition and combustion zone of the engine, said reaction member including catalytic agents including a mixture of boron and manganese compounds.
Claim 2
Dependent Claim
71 words
A spark plug for an internal combustion engine which comprises a body member, a pair of electrodes supported by said body member to provide a spark gap in the combustion chamber of the engine, and a reaction member supported adjacent said spark gap so as to lie within the flame ignition and combustion zone of the engine, said reaction member including catalytic agents including a mixture of boron and manganese compounds.
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) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |