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

Combustion – Timer – programmer – retarder or condition responsive control – Igniter heat up and fuel feed sequence controlled by timer...

Control circuit and adjustable valve for a gas appliance

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

Control circuit for a semi-conductor power element and applicati

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

Control circuit for combustion systems

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

Control circuit for gas burners

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

Control circuit for gasified liquid fuel combustion apparatus

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

Control device for a burner and adjusting method

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

Control device for a fuel valve

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

Control device for a gas-fired appliance

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

Control device for a gas-fired appliance

Combustion – Timer – programmer – retarder or condition responsive control – By manually started timer or retarder – or by time of day device

Control device for gas burners

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

Control device for gas supply to main burner and pilot burner of

Combustion – Timer – programmer – retarder or condition responsive control – Of diverse feed or feed rate in starting – e.g. – enriching...

Control device of a combustion apparatus

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

Control for catalytic combustor

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

Control for furnace flue damper

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

Control of burners

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

Control or regulating system for automatic gas furnaces of heati

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

Control system

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

Control system

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

Control system for a burner