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5385031 |
Air conditioner with fan speed controlled by oscillating louver position
A rotational speed of a fan is maintained at a preset one when an angle of a flap is at a maximum air-flow angle, increased by a specified value when the angle of the flap has been changed by a...
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5385297 |
Personal comfort system
A hierarchical control system including a central receiver; a first communications medium operably connecting the central receiver to at least one controller; and a controller operably connected to...
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5373987 |
Variable volume air valve
An apparatus for temperature control in a room by adjusting supply air flow rate in response to a room thermostat in a ducted air conditioning system where a plurality of rooms are supplied by a...
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5364304 |
Remotely controlled electrically actuated air flow control register
The invention relates to an air flow controllable register unit for controlling flow of air through the register from an air circulating system having a register air flow supply duct. The air flow...
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5364026 |
Ventilation fan control
The residential structure ventilating apparatus disclosed herein employs a variable speed exhaust fan. The speed is responsive to a sensor which detects air temperature at the exhaust port. The fan...
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5361984 |
Device for selective climate control in vehicle cabins
Device for selective climate control in vehicle cabins having a first air-vent duct (18) and a second air-vent duct (22) on respective sides or different zones in a vehicle cabin. The duct...
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5361985 |
Setup tool for a wireless communications system
A hierarchical control system including a central receiver; a first communications medium operably connecting the central receiver to at least one controller; and a controller operably connected to...
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5350113 |
Air flow control system and method for a dual duct system
A dual-duct HVAC system for providing a desired comfort level in a room, includes a controller that carries out a simple operation that determines the total open damper positions for dual dampers...
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5350237 |
Temperature measuring circuit for heating and cooking appliances
In a temperature measuring circuit connecting a temperature sensor such as a thermistor to a standard voltage source through tap resistances, detecting a sensed value of the temperature sensor by...
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5346127 |
Air conditioning system with enhanced dehumidification feature
An air conditioning system is provided with indoor and outdoor air. Since the moisture content of the outdoor air is the major factor in determining the resulting humidity of the indoor space to...
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5344070 |
Computer-controlled automotive air conditioning system with fuzzy inference
A computer-controlled automotive air conditioning system comprises an air conditioning unit which, when operated, produces a conditioned air fed to a passenger room of the vehicle. An outside...
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5344069 |
Air conditioning apparatus for distributing primarily-conditioned air to rooms
Primarily-conditioned air is discharged from a heat source, and distributed into a plurality of rooms through a duct. The duct has a plurality of air passages connected to the rooms, and a damper...
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5341988 |
Wireless air balancing system
A hierarchical control system including a central receiver; a first communications medium operably connecting the central receiver to at least one controller; and a controller operably connected to...
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5340021 |
Air conditioning device for vehicles
The object of the present invention is to supply air to passengers in an automobile so that they will feel more comfortable in the presence of solar radiation by suppressing a rise in temperature...
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5336131 |
Differential pressure control apparatus for livestock houses
A method for ventilating an animal enclosure using a plurality of closable ventilation openings. Sensors measure ambient outside temperature and ambient atmospheric pressure. A controller...
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5332151 |
Cooling/heating apparatus having automatic ventilating function and its control method
A cooling/heating apparatus having an automatic ventilating function and its method switches the ventilating function and the cooling/heating function in response to the pollution state of room air...
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5326028 |
System for detecting indoor conditions and air conditioner incorporating same
A system to be installed within a room for detecting indoor condition data such as the interior area of the room and the number and position of occupants therein comprises an LED array for emitting...
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5324229 |
Two section economizer damper assembly providing improved air mixing
A two section damper assembly and method of use is disclosed for avoiding stratification of cooled air in an air conditioning system. The damper assembly is especially adapted for use in variable...
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5318099 |
Method and apparatus for emulating a perimeter induction unit air conditioning system
A method and apparatus for emulating a perimeter induction unit, in which the perimeter induction unit is replaced by an emulation unit carried in a plenum above the space to be heated or cooled. A...
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5318104 |
Error based zone controller
The present invention describes an apparatus and method for controlling the temperature in a plurality of comfort zones within a house or building. The invention contemplates a series of zone...
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5311451 |
Reconfigurable controller for monitoring and controlling environmental conditions
A highly distributed direct digital process control system for use in controlling a fully distributed process includes at least one device controller independently monitoring and controlling a...
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5307990 |
Adaptive forced warm air furnace using analog temperature and pressure sensors
Furnace control for a forced air furnace utilized in multi-zone heating. The forced air furnace is made up of return ducts, a heat exchanger, warm air ducts, a circulation blower, and a burner. The...
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5305953 |
Reactive heating control system
Method and apparatus are disclosed for responding to an unpermissible rise in the supply air temperature in any zone of a variable air volume system. A warning is generated to a controller in each...
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5303767 |
Control method and system for controlling temperatures
A system and method for controlling the operation of a Heating, Ventilation and Air Conditioning (HVAC) system for use primarily in a building having more than two controllable temperature zones....
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5297392 |
Air conditioning apparatus
An air conditioning apparatus which includes a single heat source device and plural indoor units including indoor heat exchangers. Some of the indoor units include a fan for introducing outdoor...
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5294048 |
Apparatus for controlling ventilation fan
The level of a signal voltage of a sensor circuit 9 which changes depending upon the environmental change is detected by comparing the signal voltage with a reference voltage which is constant for...
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5289094 |
Light responsive airflow register
An airflow register for an air conditioning system for an enclosure such as room within a house or an office within a building. The register includes a series of louvers which can be located in...
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5279609 |
Air quality-temperature controlled central conditioner and multi-zone conditioning
An air quality and temperature responsive air conditioning system wherein modules are employed to precondition the air for humidity control, to heat and cool the air, and to bypass the supply air...
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5261596 |
Air quality conditioning system
An air quality conditioning system for adjusting an environmental air quality in an accommodation space comprises; a detection device for detecting the air quality; another detection device for...
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5259553 |
Interior atmosphere control system
An interior atmosphere control system contains a group of sensors to detect/measure indoor and outdoor air temperature, humidity, air pressure, oxygen content, carbon-dioxide content, static...
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5259814 |
Process for ventilating the interior of a motor vehicle and ventilation system for the performance thereof
A process for ventilating the interior of a motor vehicle having a closure which can be opened by a drive motor, an interior temperature-setpoint value generator, at least one interior temperature...
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5257736 |
Self-regulating air ventilation apparatus
The present ventilating system is used for homes and buildings located in cold climate areas. The system includes a heat exchanger for extracting heat from the inside air discharged to the exterior...
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5251814 |
Air conditioning apparatus having louver for changing the direction of air into room
A louver is provided at an air outlet of an indoor unit. The louver changes the direction of air into the room and swings in a horizontal direction of the room. On the other hand, a temperature...
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5251815 |
Self powered and balancing air damper
An automatic air damper assembly for use with a building conditioned air system. The air damping assembly includes a duct section adapted for insertion into the duct work of the conditioned air...
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5249741 |
Automatic fan speed control
A method of cooling a computer having a plurality of components and at least one variable rate cooling unit including the steps of obtaining a cooling requirement for at least one of the components...
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5239834 |
Auxiliary outside air refrigeration system
The invention pertains to an auxiliary outside air refrigeration system for use in combination with a conventional refrigeration system to supply refrigeration to an enclosure whereby cold outside...
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5240177 |
Container with device preventing dew condensation
A ventilation apparatus for a container for transporting goods by truck or ship. The walls of the container are provided with an inlet opening and an outlet opening, and an inlet unit is connected...
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5238447 |
Process for cooling a motor vehicle interior and a vehicle roof system for the performance thereof
A process for cooling the interior of a motor vehicle and a roof system for its performance which has a roof part that can be opened by an electric motor. As a function of the interior temperature...
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5237338 |
Is-enthalpic control of a thermal printing head
Is-enthalpic temperature control of the operation of the thermal printing head of a thermal printing device is attained by use of a transfer area at the head to transfer heat from the head to a...
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5234050 |
Automatic climate control system
An aftermarket automatic climate control system is disclosed for use in automobiles to be connected to existing heating, including a fan and fan motor to control the volume of air flow, said system...
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5230466 |
Humidity control apparatus
The humidity control apparatus comprising solid absorbers (13a, 13b) and a heater therebetween selects the suitable operation mode among a dehumidification operation, a dehumidification with...
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5228306 |
Apparatus for controlling air-exchange and pressure and detecting airtight conditions in air-conditioned room
An apparatus for controlling air-exchange and pressure conditions in an air-conditioned room by opening and closing ducts and operating fans. The apparatus provides required indoor air pressure,...
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5226592 |
Radiator heat distributing apparatus
A housing member is arranged for mounting above and receiving an associated radiator assembly. The housing member includes spaced end walls, with each end wall including a fan member having a...
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5224648 |
Two-way wireless HVAC system and thermostat
A building automation system comprising: means for conditioning air; means, associated with the air conditioning means, for distributing the conditioned air to at least one space to be conditioned...
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5222661 |
Vehicle interior air conditioning device
An interior climate control system in which a vehicle fan of the vehicle's own ventilation device, an openable and closable vehicle opening, such as a roof opening or a window opening, and a heater...
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5209398 |
Model-based thermobalance with feedback
A temperature control system and method for maintaining the temperature of air within an air pressure controlled enclosure at a desired temperature. The system uses an energy flow model to...
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5209397 |
Process for the closed-loop and open-loop control of an air-conditioning system and automatic air-conditioning system for a motor vehicles
An air-conditioning system for a motor vehicle is controlled in such a manner that the temperature control in the air-conditioning mode occurs with two channels, i.e. corresponding individually to...
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5197667 |
HVAC low power usage circulation blower
A field installable device for a conventional heating and air conditioning system (HVAC) is provided which operates a blower fan in conjunction with a standard thermostat. Presently, HVAC systems...
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5193742 |
Method for controlling operation of air-conditioner to adjust room temperature automatically
A method for controlling the operation of an air-conditioner to optimize the temperature in a room automatically, by utilizing the relationship between a predetermined optimum room temperature and...
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5187943 |
Control apparatus for air-conditioner
The temperature and velocity of a wind blown from an air-conditioner are controlled in such a manner that a temperature sensation value TS expressed by the following formula becomes a targeted...
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