1
John E Games, William W Bitterli, David M Healey: Energy conservative control of heating, ventilating, and air conditioning (HVAC) systems. United Technologies Corporation, Dominic J Chiantera, May 27, 1980: US04205381 (78 worldwide citation)

Electronic processing means, in combination with dedicated sensing apparatus is used to control the operation of an HVAC system which regulates the temperature in one or more temperature controlled spaces. The electronic processing means and associated sensing apparatus being readily adapted to exis ...


2
David M Healey, John E Games: Temperature control of chill water and steam in heating, ventilation, air conditioning (HVAC) systems. United Technologies Corporation, Dominic J Chiantera, February 5, 1980: US04187543 (41 worldwide citation)

Apparatus for controlling the discharge temperature of thermal fluid presented from a common thermal source to one or more HVAC systems in a network, each HVAC controlling the volume of thermal fluid circulating therethrough by regulating the valve position of HVAC valve apparatus over a valve posit ...


3
William W Bitterli, John E Games, David M Healey: Energy conservative control of terminal reheat heating, ventilating, and air conditioning (HVAC) systems. United Technologies Corporation, Dominic J Chiantera, February 24, 1981: US04253153 (21 worldwide citation)

A terminal reheat HVAC system which regulates the temperature in a plurality of temperature controlled spaces by modulating the temperature of cool discharge air presented to each of the spaces from an air handler source, each space receiving the cool discharge air through an associated space distri ...



Click the thumbnails below to visualize the patent trend.