1
Jeffrey L Parker, Edward Parker: Temperature control system. Parker Electronics, Arthur G Yeager, March 3, 1987: US04646964 (119 worldwide citation)

A temperature control system used in association with a heating and cooling system supplying warm or cool air to a duct system for maintaining accurate temperature in a zone of multiple zones utilizing a microcomputer based thermostat for modulating a damper assembly in the duct system feeding the z ...


2
Jeffrey L Parker, Edward Parker: Method and system for controlling a single zone HVAC supplying multiple zones. Parker Electronics, Arthur G Yeager, Earl L Tyner, June 5, 1990: US04931948 (104 worldwide citation)

An improved monitoring and control system for a heating, ventilating and air conditioning (HVAC) unit which provides zone control in plural zones in which each zone includes a thermostat which controls a damper for its zone. One thermostat is selected and programmed to function as a monitor or maste ...


3
Jeffrey L Parker, Edward Parker: Thermostat control system. Parker Electronics, June 27, 1989: US04843084 (80 worldwide citation)

A microcomputer-controlled thermostat for use in monitoring and controlling a single zone HVAC system which provides conditioned air to one or more zones. The thermostat can be programmed and used either as a monitor thermostat to control the HVAC unit alone and/or to control the HVAC unit and its d ...


4
Jeffrey L Parker, Edward Parker: Single zone HVAC controlled for operation in multiple zone arrangement. Parker Electronics, Arthur G Yeager, July 23, 1985: US04530395 (69 worldwide citation)

A monitoring and control system for a heating, ventilating and air conditioning (HVAC) unit which provides zone control in plural zones in which each zone includes a control thermostat that is interfaced with the monitoring system so that each zone thermostat controls the HVAC unit as well as a damp ...


5
Jeffery L Parker, Edward Parker: Thermostat. Parker Electronics, Arthur G Yeager, Earl L Tyner, November 28, 1989: US04884214 (68 worldwide citation)

A microcomputer-controlled thermostat for use in monitoring and controlling a single zone HVAC system which provides conditioned air to one or more zones. The thermostat can be programmed and used either as a monitor thermostat to control the HVAC unit alone and/or to control the HVAC unit and its d ...


6
Jeffrey L Parker, Edward Parker: Bypass controller and bypass system. Parker Electronics, May 9, 1989: US04829447 (62 worldwide citation)

A microcomputer-controlled bypass controller for use in maintaining a minimum airflow through a heating/cooling unit and limit the static pressure in the supply air truck duct. The bypass controller functions to control the operation of a bypass damper which regulates the airflow through a duct that ...


7
Jeffrey L Parker, Edward Parker: Bypass control system to maintain a constant air supply pressure in a HVAC duct system. Parker Electronics, Arthur G Yeager, December 11, 1984: US04487363 (32 worldwide citation)

A bypass control system and method monitors and controls the amount of air recirculated through a bypass duct from the air supply outlet supplied by a fan and motor from a single zone HVAC unit to the air intake thereof, a stepper motor driven bypass damper is located in the bypass duct having a dam ...


8
David F Sorrells: Pressure sensor. Parker Electronics, Arthur G Yeager, August 7, 1990: US04945768 (4 worldwide citation)

A pressure sensor for accurate readings of low pressures utilizes an ultrasonic transmitter which sends a signal to a movable diaphragm via a waveguide. Pressure changes across the diaphragm causes changes in the signal path length from transmitter to receiver which are translated into pressure read ...


9
Foster Glenn Douglas, Moses Charlie Dan: Residential heating and air conditioning control system.. Parker Electronics, September 8, 1993: EP0559600-A2 (2 worldwide citation)

A temperature control system for a residential zoned forced air system which maintains programmed temperature setpoints for specific periods in each zone having hold, override, and vacation modes which can temporarily alter the programmed temperature setpoints and time periods for either individual ...


10
Parker Jeffrey L, Parker Edward: Commande centralisee pour le chauffage, le conditionnement de lair et la ventilation multizone, Single zone hvac controlled for operation in multiple zone arrangement. Parker Electronics, MACRAE & CO, November 12, 1986: CA1213957 (1 worldwide citation)

ABSTRACT OF THE DISCLOSURE A monitoring and control system for a heating, ventilatingand air conditioning (HVAC) unit which provides zone control inplural zones in which each zone includes a control thermostatthat is interfaced with the monitoring system so that eachzone thermostat controls the HVAC ...



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