Water resistant direct spark igniter
US9048634B2 · kind B2 · utility
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4References
5Claims
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Assignee
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Key dates
| Filing date | Jan 25, 2013 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Aug 26, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q3/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A direct spark igniter for a fuel-fired heating appliance is provided with enhanced ignition performance in environments having substantial levels of both moisture and pollution. Such enhanced ignition performance is representatively achieved by the combination of (1) forming external annular ribs on the ceramic body portion of the igniter; (2) extending a top end of the igniter electrode rod into the body portion; (3) bending the igniter electrode and ground rods and angling them toward one another; and (4) knurling external side surfaces on lower end portions of the igniter electrode and ground rods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.