Inventor

BIRD DOUGLAS D

US19 patents

⚠️ This page may combine multiple inventors who share the name “BIRD DOUGLAS D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BIRD DOUGLAS D

HONEYWELL INT INC

Pilot flame powered burner controller with remote control operation

Method and apparatus for safety switch

Temperature controlled burner apparatus

Temperature sensor diagnostic for determining water heater health status

Low voltage DC-DC converter

Dual armature solenoid valve assembly

Motor step-less speed control with active feedback of phase detector

Over temperature limiting scheme by reducing gas pressure

HONEYWELL INC

Thermostat with means for disabling PID control

Setback thermostat with recovery start time selected non-linearly

Electronic fuel convertibility selection

Humidity sensing circuit

Resistance to frequency circuit for measuring ambient temperature on a thermostat

Method of maximizing the efficiency of an environmental control system including a programmable thermostat

NORDBERG TIMOTHY J

Burner firing rate determination for modulating furnace

Selectable efficiency versus comfort for modulating furnace

Burner firing rate determination for modulating furnace

ADEMCO INC

Selectable efficiency versus comfort for modulating furnace

Method and system for starting an intermittent flame-powered pilot combustion system