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| Number | Title | Issue Date |
| 7392838 | System and method for vehicle defogging condition calculation and control A method and apparatus for controlling a vehicle HVAC system to automatically defog a windshield glass and to prevent fogging or condensation of the windshield glass. The ambient air temperature and vehicle speed are measured and used to determine a windshield glass... | 07/01/2008 |
| 7340907 | Anti-condensation control system An anti-condensation control apparatus for a refrigeration device generally includes a sensor module and a control module. The control module receives an input from the sensor module and compares the input to a set point. The control module generates an output indic... | 03/11/2008 |
| 7292929 | System for a virtual dew point sensor A system for a virtual dew point sensor is disclosed including a method for operating the virtual dew point sensor. The method includes determining a first humidity ratio indicative of the humidity associated with an ambient air as a function of at least a relative ... | 11/06/2007 |
| 7281669 | Apparatus and method for generating a defined environment for particle-shaped samples An apparatus for generating a defined environment for particle-shaped samples, comprises a support element with a rest end for a particle-shaped sample and an apparatus for generating a humid gas flow at a mouth end thereof. The mouth end is directed to the rest end... | 10/16/2007 |
| 7258280 | Damper control in space heating and cooling An amount of time that air has been delivered from an air handler to a space is tracked, and based on the tracked amount of time, at least one turn-on time or one turn-off time of the delivery of air from the air handler to the space is controlled. Other features re... | 08/21/2007 |
| 7159409 | Method and apparatus for controlling the load placed on a compressor A method of operating a vapor compression system, the vapor compression system defining a closed fluid circuit in which a refrigerant is circulated and having operably disposed therein, in serial order, a compressor, a high pressure heat exchanger, an expansion devi... | 01/09/2007 |
| 7083109 | Thermostat having modulated and non-modulated provisions A thermostat providing modulated or analog control of valves or dampers of an air management system. This permits operating a single cooling or heating stage with partially open valves or dampers as needed, since one full stage that is either fully on or off may not... | 08/01/2006 |
| 7065978 | Air conditioner An air conditioner is disclosed, which has an improved structure to use with easiness by connecting a duct thereto, the duct being in communication with the inside. The air conditioner includes a cabinet having an inlet for supplying air of an indoor room to the ins... | 06/27/2006 |
| 7059400 | Dual-compartment ventilation and air-conditioning system having a shared heating coil An HVAC system has two variable-air-volume (VAV) systems, a first VAV system for moving fresh air and a second VAV system for moving recycled air. Both the fresh air and recycled air are cooled and dehumidified by a single heat-exchanging coil. The fresh and recycle... | 06/13/2006 |
| 6957696 | Combination radiant and forced air climate control system A method and controller for controlling the operation of a zoned climate control system including a primary heat source, a secondary heat source, a cooling unit, and a humidifier unit. The controller is configured to receive both heating demand signals and cooling d... | 10/25/2005 |
| 6945456 | Automated banking machine including temperature controlled housing An automated banking machine (10) includes a lockable first fascia portion (20) which when unlocked enables access to a chest lock input device (104), inputs to which enable opening a chest door (18) of the machine. Opening the first fasc... | 09/20/2005 |
| 6843068 | Method and apparatus for adjusting the temperature set point based on humidity level for increased comfort Methods and apparatus for using humidity level to adjust the temperature set point of an HVAC system for increased occupant comfort. In one illustrative embodiment, the temperature set point for the inside space is moved downward when the humidity of the inside spac... | 01/18/2005 |
| 6715540 | Air-conditioning apparatus for vehicle The air heating capability of an indoor heat exchanger is limited to set the temperature of the indoor heat exchanger to a first predetermined temperature Tel or lower during heating. Thereby, fogging is prevented through re-evaporation of the condensed water in the... | 04/06/2004 |
| 6704681 | Method and apparatus for sensing microbial growth conditions This method and device collect relative humidity data, then evaluate that data using an algorithm to determine if conditions are permissible for fungal growth. The growth condition meter, placed in a building's wall or ceiling, includes a simple controlle... | 03/09/2004 |
| 6575233 | Combination radiant and forced air climate control system A method utilizing a controller for controlling the operation of a zoned climate control system including a primary heat source, a secondary heat source, a cooling unit, and a humidifier unit. The controller is configured to receive both heating demand si... | 06/10/2003 |
| 6431268 | Air distribution fan and outside air damper recycling control A system for controlling the operation of an air distribution fan and the operation of a motorized outside air damper of an air conditioning system, having heating and/or cooling and/or humidifying and/or dehumidifying operating modes. The system includes... | 08/13/2002 |
| 5934987 | Device and method for controlling air conduction elements of a vehicle A device and method for controlling air conduction in a vehicle includes an air conduction element. The air conduction element is controlled as a function of the moisture in the vehicle interior, intermediate positions of the air conduction element being ... | 08/10/1999 |
| 5887651 | Reheat system for reducing excessive humidity in a controlled space A space comfort system controls humidity in a space by applying heat to air recirculated to the space when the humidity is excessive and cooling of the air is not required. In a preferred embodiment, the call for heat occurs from the time the humidity inc... | 03/30/1999 |
| 5850968 | Air conditioner with selected ranges of relative humidity and temperature An air conditioning system with temperature and relative humidity sensors connected to a computerized control system. The control system acts on preselected stored data to turn on the air conditioning system to maintain the environment within a selected c... | 12/22/1998 |
| 5737934 | Thermal comfort controller A controller for a climate control system has a relative humidity sensor as well as a dry-bulb temperature sensor within the enclosure. The humidity value is used in conjunction with the dry-bulb temperature to generate an apparent temperature error signa... | 04/14/1998 |
| 5675979 | Enthalpy based thermal comfort controller A controller for a climate control system has a relative humidity sensor as well as a dry-bulb temperature sensor within the enclosure. The humidity value is used in conjunction with the dry-bulb temperature to generate an enthalpy error signal which is a... | 10/14/1997 |
| 5651498 | Heating system with humidity control for avoiding water condensation on interior window surfaces A space heating system with a controllable air humidification capability calculates a theoretical value for the temperature of the interior surface of the space's windows. The system controls humidity in the space to a level just below that at which water... | 07/29/1997 |
| 5407129 | Poultry environmental control systems and methods A poultry house controller (14) situated within a poultry house (12) regulates the relative humidity and temperature within the poultry house (12) via actuation of fans (22) and heaters (24) in response to temperature and humidity feedback signals from te... | 04/18/1995 |
| 5392846 | Heat/cooling system and apparatus This invention provides a heating/cooling system including a heating/cooling apparatus, the apparatus comprising a blower unit connected to a heat exchanger unit and both units are enclosed within a duct structure which is continuous from an upstream inpu... | 02/28/1995 |
| 5346129 | Indoor climate controller system adjusting both dry-bulb temperature and wet-bulb or dew point temperature in the enclosure A controller for a climate control system has a humidity (wet-bulb or dew point) temperature sensor as well as a dry-bulb temperature sensor within the enclosure. The humidity temperature value is used in connection with the dry-bulb temperature to genera... | 09/13/1994 |
| 5343747 | Normalized relative humidity calibration A humidity measurement process and humidity measurement scale are derived from the physics of relative humidity. Absolute moisture content is determined independent of any measurement or knowledge of the source temperature. The humidity measurement is equ... | 09/06/1994 |
| 5213259 | Paint booth humidity and temperature control system Humidity control system for regulating the relative humidity of air which is forced through a spray painting booth. The humidity control system employs a water spray nozzle which atomizes water to quickly change the relative humidity and temperature of th... | 05/25/1993 |
| 4920755 | Control apparatus for automobile air-conditioners A control apparatus for automobile air-conditioners includes a vehicle compartment humidity calculating unit for calculating a relative humidity in the vehicle compartment based on the relative humidity on the inside surface of the windshield of a motor v... | 05/01/1990 |
| 4910967 | Demist controller for automobile air-conditioners A demist controller for an automobile air-conditioner includes a demist judgement unit for judging the need for a demist operation based on the relative humidity in the vicinity of the inside surface of a window glass of the automobile, and a correction u... | 03/27/1990 |
| 4858377 | Plant oriented control system based upon vapor pressure deficit data A system for controlling environmental conditions including irrigation or misting in greenhouses having a plurality of crop beds within one greenhouse enclosure arranged into a plurality of sense zones and a plurality of control zones comprises a pluralit... | 08/22/1989 |
| 4856227 | Plant oriented control system based upon vapor pressure deficit data A system for controlling environmental conditions including irrigation or misting in greenhouses having a plurality of crop beds within one greenhouse enclosure. Aspirated enclosures have associated temperature sensors for measuring dry bulb temperature a... | 08/15/1989 |
| 4852363 | Air conditioner humidity control system In an air conditioner for a motor vehicle, which, for the purpose of contling the humidity, has in the ir duct suitable devices, controlled by a microcomputer. The microcomputer receives values for outside temperature, inside temperature and inside humid... | 08/01/1989 |
| 4841733 | Dri-Pc humidity and temperature controller A temperature and humidity control system for natatoriums. The system provides a constant volume of air circulation which is used to control temperature and humidity in the natatorium while inhibiting the accumulation of moisture on the surfaces defining ... | 06/27/1989 |
| 4813475 | Temperature control means for a self service banking system Self service banking system including a walk-in kiosk housing an Automatic Teller Machine (ATM). The kiosk includes a pivotable interior access door on one end thereof which is pivotable between open and closed positions and a side wall rotatable quarter ... | 03/21/1989 |
| 4789097 | Humidity control apparatus for an area A humidity control apparatus for controlling the humidity level of air within a given area. The apparatus includes a plurality of control valves connected in fluid flow communication to a fluid supply source for injecting water into the air within the are... | 12/06/1988 |
| 4649710 | Method of operating an air conditioner In a method of operating an air conditioner for supplying an air from the air conditioner to the inside of a chamber, the temperature of the air supplied to the inside of the chamber upon starting the operation of the air conditioner is increased to an ai... | 03/17/1987 |
| 4630221 | Zone condition controller and method of using same An electrically-powered zone condition control apparatus includes a first multiplexing means adapted for receiving analog status signals emanating from a plurality of passive signaling devices such as temperature or humidity sensors or potentiometers and ... | 12/16/1986 |
| 4616325 | Zone condition controller and method of using same An electrically-powered zone condition control apparatus includes a first multiplexing means adapted for receiving analog status signals emanating from a plurality of passive signaling devices such as temperature or humidity sensors or potentiometers and ... | 10/07/1986 |
| 4478048 | Air sensing control system for air conditioners A unitary air conditioner unit adapted to be mounted through a wall opening of an enclosure to be conditioned including an air sensing system operative for generating a signal dependent on the level of gases in the enclosure air. The control is operable f... | 10/23/1984 |
| 4449188 | Apparatus and method for controlling humidity Apparatus for controlling humidity comprises a humidity sensing circuit including a humidity sensing element the electrostatic capacitance of which varies in accordance with the ambient relative humidity, and an air-conditioning system responsive to the s... | 05/15/1984 |
