Inventor
ERDMAN JOHN L
US9 patents
Patents
9 patentsUS4457692AJul 3, 1984
Dual firing rate flame sensing system
HONEYWELL INC69 citations95
US5679137AOct 21, 1997
Optical dirty cell sensor for an electronic air cleaner
HONEYWELL INC80 citations93
US5542279AAug 6, 1996
Method of incorporating wide tolerance set point potentiometers into devices with fixed orientation setpoint indicator scales
HONEYWELL INC28 citations92
US5426776AJun 20, 1995
Microprocessor watchdog circuit
HONEYWELL INC26 citations91
US5076780ADec 31, 1991
Digital controller component failure detection for gas appliance ignition function
HONEYWELL INC37 citations91
US5074780ADec 24, 1991
Control system for forced combustion air heating appliance
HONEYWELL INC32 citations91
US5041775AAug 20, 1991
Speed control for multitap induction motor
HONEYWELL INC18 citations72
US4789329ADec 6, 1988
Thermostatically operated fuel valve control circuit
HONEYWELL INC6 citations62
US4963088AOct 16, 1990
Safety-related parameter inputs for microprocessor ignition controller
HONEYWELL INC5 citations61