LandOfFree - US Patents - Listing for Combustion,Timer, programmer, retarder or condition responsive control,By sensing of gas leakage, flashback or escaped flame

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

Apparatus and method for detecting leaks in a system for deliver

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

Apparatus and method for shutting down a fuel fired appliance

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

Apparatus and method for shutting down a fuel fired appliance

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

Apparatus and method for shutting down fuel fired appliance

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

Apparatus for detecting the occurrence of inadequate levels of c

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

Carbon monoxide automatic furnace shutdown system

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

Combined fan and ignition control with selected condition sensin

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

Combined smoke detection and furnace shut off device

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

Cross flow type burner apparatus

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

Electronic control arrangement for detecting a leak condition fo

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

Flammable vapor control system

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

Flue draft malfunction detector and shut-off control for oil bur

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

Fuel burner control device providing safely ignited burner

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 sensing of gas leakage – flashback or escaped flame

Gas furnace controller

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

Gas safety control system

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

Incomplete combustion preventing gas burner

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

Safety control for furnace burner

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

Safety control for furnace burner