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Combustion blower control for modulating furnace

Combustion – Timer – programmer – retarder or condition responsive control – Responsive to combustion chamber pressure
Reexamination Certificate

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Combustion control apparatus

Combustion – Timer – programmer – retarder or condition responsive control – Providing repeated start attempts prior to shutdown upon...
Patent

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Combustion control apparatus

Combustion – Timer – programmer – retarder or condition responsive control – Of igniter and feed controlled sequence
Patent

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Combustion control apparatus

Combustion – Timer – programmer – retarder or condition responsive control – By condition of burner feed or feed means
Patent

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Combustion control apparatus

Combustion – Timer – programmer – retarder or condition responsive control
Reexamination Certificate

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Combustion control apparatus for burner

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

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Combustion control apparatus of a combustion furnace

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

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Combustion control device

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

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Combustion control device

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

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Combustion control device

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

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Combustion control device for nozzle spray type burner

Combustion – Timer – programmer – retarder or condition responsive control – Of sequential operation of plural burners – e.g. – pilot and...
Patent

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Combustion control for producing low NO.sub.x emissions through

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

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Combustion control system

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

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Combustion control system

Combustion – Timer – programmer – retarder or condition responsive control – By condition of burner feed or feed means
Patent

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Combustion control system

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

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Combustion control system

Combustion – Timer – programmer – retarder or condition responsive control – By condition of burner feed or feed means
Patent

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Combustion control system

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

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Combustion control system

Combustion – Timer – programmer – retarder or condition responsive control – Control of purger – of scavenger or of combustion start-up...
Patent

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Combustion control system for burner

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

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Combustion control system for oil burner

Combustion – Timer – programmer – retarder or condition responsive control
Patent

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