Safe gas control valve for use with standing pilot
Safe gas valve
Safety device for gas burners
Safety device for gas-fired equipment
Safety ignition means for burner installations
Safety ignition means for burner installations
Sealed gas control valve
Self-contained electric igniter with rechargeable battery
Self-energizing burner control system for a fuel burner
Slow-opening gas valve
Solid state ignition control
Spark ignited recycling ignition system with interlocking gas va
Spark ignition system with positive suppression of spark when pi
Stand-alone device for igniting, regulating and operating gas ap
Status indicator for self-energizing burner control system
Thermal switch
Thermoelectric field burner
Thermostatically operated fuel valve control circuit
Valve interlock