Inventor
BALLARD GARY W
US16 patents
Patents
16 patentsUS4860231AAug 22, 1989
Calibration technique for variable speed motors
CARRIER CORP66 citations96
US4688547AAug 25, 1987
Method for providing variable output gas-fired furnace with a constant temperature rise and efficiency
CARRIER CORP119 citations96
US4648551AMar 10, 1987
Adaptive blower motor controller
CARRIER CORP75 citations94
US4946096AAug 7, 1990
Method and apparatus for operating a furnace from a 12V DC battery
CARRIER CORP42 citations92
US4891004AJan 2, 1990
Control of energy use in a furnace
CARRIER CORP27 citations92
US4887767ADec 19, 1989
Limit switch control method for a two-stage furnace
CARRIER CORP36 citations92
US4815524AMar 28, 1989
Control system for a furnace operating in the continuous blower mode
CARRIER CORP34 citations92
US4789330ADec 6, 1988
Gas furnace control system
CARRIER CORP35 citations92
US4707646ANov 17, 1987
Method of limiting motor power output
CARRIER CORP26 citations92
US4706881ANov 17, 1987
Self-correcting microprocessor control system and method for a furnace
CARRIER CORP39 citations92
US4638942AJan 27, 1987
Adaptive microprocessor control system and method for providing high and low heating modes in a furnace
CARRIER CORP35 citations90
US4792089ADec 20, 1988
Self-correcting microprocessor control system and method for a furnace
CARRIER CORP22 citations82
US4951870AAug 28, 1990
Overtemperature control
CARRIER CORP22 citations79
US4850852AJul 25, 1989
Gas valve shut off method and apparatus
CARRIER CORP16 citations73
US4146086AMar 27, 1979
Furnace blower speed control
CARRIER CORP14 citations67
US4189091AFeb 19, 1980
Furnace having a normally closed blower relay
CARRIER CORP3 citations59