LandOfFree - US Patents - Listing for Combustion,Timer, programmer, retarder or condition responsive control

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

Fuel-to-air ratio control for combustion systems

Combustion – Timer – programmer – retarder or condition responsive control – Sensor of electrical condition or temperature of electrical...

Functional check for a hot surface ignitor element

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

Furnace air volume control apparatus

Combustion – Timer – programmer – retarder or condition responsive control – Of or by exhaust damper or exhaust pump

Furnace control using induced draft blower and exhaust gas diffe

Combustion – Timer – programmer – retarder or condition responsive control – Of or by exhaust damper or exhaust pump

Furnace control using induced draft blower, exhaust gas flow rat

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

Furnace fuel optimizer

Combustion – Timer – programmer – retarder or condition responsive control – Of or by exhaust damper or exhaust pump

Furnace ignition system with draft control and loss-of-draft pro

Combustion – Timer – programmer – retarder or condition responsive control

Furnace protective device

Combustion – Timer – programmer – retarder or condition responsive control – Of or by exhaust damper or exhaust pump

Furnace stack damper control apparatus

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

Furnace system

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

Gas appliance control device

Combustion – Timer – programmer – retarder or condition responsive control – By sensing of gas leakage – flashback or escaped flame

Gas appliance with a burner in the lower part, equipped with...

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

Gas appliance with automatic gas shut-off device responsive to f

Combustion – Timer – programmer – retarder or condition responsive control – Sensor of first burner controls second burner – e.g. – pilot...

Gas burner

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

Gas burner

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

Gas burner

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

Gas burner control for a bake oven

Combustion – Timer – programmer – retarder or condition responsive control – Sensor of first burner controls second burner – e.g. – pilot...

Gas burner control mechanism

Combustion – Timer – programmer – retarder or condition responsive control – Sensor of first burner controls second burner – e.g. – pilot...

Gas burner control system