Inventor
LANDIS WILLIAM R
US15 patents
Patents
15 patentsUS4915613AApr 10, 1990
Method and apparatus for monitoring pressure sensors
HONEYWELL INC52 citations93
US4923117AMay 8, 1990
Microcomputer-controlled system with redundant checking of sensor outputs
HONEYWELL INC34 citations92
US4835670AMay 30, 1989
Microcomputer fuel burner control having safety interlock means
HONEYWELL INC33 citations91
US3947218AMar 30, 1976
Safety circuit for monitoring a flickering flame
HONEYWELL INC29 citations81
US4854852AAug 8, 1989
System for redundantly processing a flame amplifier output signal
HONEYWELL INC19 citations73
US4451226AMay 29, 1984
Flame safeguard sequencer having safe start check
HONEYWELL INC13 citations73
US4328527AMay 4, 1982
Selective ultraviolet signal amplifier circuit
HONEYWELL INC11 citations73
US4999792AMar 12, 1991
Method and apparatus for automatic fuel changeover
HONEYWELL INC13 citations71
US4422067ADec 20, 1983
Dynamic self-checking safety circuit means
HONEYWELL INC12 citations71
US4963752AOct 16, 1990
Method for detecting missing circuit board components
HONEYWELL INC15 citations66
US4866363ASep 12, 1989
Fail-safe potentiometer feedback system
HONEYWELL INC10 citations66
US5015172AMay 14, 1991
Method and apparatus for detecting short circuited combustion air switches
HONEYWELL INC4 citations62
US4858885AAug 22, 1989
Anti-bounce logic for critical loads
HONEYWELL INC2 citations62
US4451227AMay 29, 1984
Flame safeguard sequencer having switch test functions
HONEYWELL INC2 citations62
US4451225AMay 29, 1984
Flame safeguard sequencer having interlock checking means
HONEYWELL INC5 citations62