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Dual valve lighting device

Combustion – Electrical or mechanical igniter correlated with burner feed
Patent

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Dual-action piezoelectric lighter

Combustion – Correlation of fuel or power supply with component movements...
Reexamination Certificate

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Dual-fuel burner

Combustion – Fuel disperser installed in furnace – Plural feed means extending to common wall opening of furnace
Patent

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Dual-valve air-gas controller

Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent

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Dual-water mixture fuel burner

Combustion – Fuel disperser installed in furnace – Rotary disperser projects at surrounding flange surface
Patent

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Duct burner

Combustion – Flame holder having protective flame enclosing or flame...
Patent

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Duct burner apparatus

Combustion – Process of combustion or burner operation – Decarbonizing – cleaning or purging
Patent

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Duct burner diffuser

Combustion – Flame holder having protective flame enclosing or flame...
Reexamination Certificate

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Durable catalytic burner system

Combustion – Porous – capillary – particulate or sievelike flame holder,... – Means supplying fuel for passage through the flame holding...
Reexamination Certificate

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Durable self-grounding igniter for industrial burners

Combustion – Burner having electrical heater or igniter – Spark electrode in front of or adjacent fuel discharger
Patent

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Dynamic control system and method for catalytic combustion proce

Combustion – Process of combustion or burner operation – Controlling or proportioning feed
Patent

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Dynamic fluid injector

Combustion – Flame holder having protective flame enclosing or flame... – Tubular member delineates flame
Patent

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Dynamically checked safety load switching circuit

Combustion – Timer – programmer – retarder or condition responsive control – With test circuit checking or analyzing flame sensing...
Patent

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