Electric lamp and discharge devices – With gas or vapor – Electrode composition
Reexamination Certificate
2009-02-26
2011-11-29
Hines, Anne (Department: 2879)
Electric lamp and discharge devices
With gas or vapor
Electrode composition
C313S310000, C313S311000
Reexamination Certificate
active
08067892
ABSTRACT:
A method is provided for forming a corona-producing emitter electrode by depositing substantially pure silicon carbide by CVD and forming a corona-producing emitter electrode with the deposited silicon carbide. In addition, a method of forming a corona-producing gas ionizer is provided by providing a corona electrode formed from CVD silicon carbide, electrically coupling the corona electrode to a high voltage power supply, and providing an AC or DC voltage from the high voltage power supply to the corona electrode. Furthermore, a method of ionizing gas in an environment is provided by providing a corona-producing ionizer emitter electrode formed substantially of CVD silicon carbide, electrically coupling the electrode to a high voltage power supply, and providing an AC or DC voltage from the high voltage power supply to the electrode.
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Curtis James R.
Gorczyca John A.
Hines Anne
Illinois Tool Works Inc.
Panitch Schwarze Belisario & Nadel LLP
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