Automatic ignition and flame detection system for gas fired devi
Auxiliary igniter and control for a furnace
Burner ignition and control system
Combustion-state detecting circuit of combustion apparatus
Control system for blue-flame oil burner
Control system for gas fired heating apparatus using double-thro
Device for the control of a sequential burner of a cooking appar
Direct ignition gas burner control system
Direct ignition gas burner control system
Direct ignition gas burner control system with diode steering ci
Dual fuel vent free gas heater
Electrically enhanced hot surface igniter
Flame rectification detectors
Fuel burner valve operator circuit with intermittent ignition
Fuel control system, parts therefor and methods of making and op
Fuel ignition system and method of making the same
Fuel ignition system and method of making the same
Functional check for a hot surface ignitor element
Gas burner control system
Gas heater