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| Number | Title | Issue Date |
| 7389646 | HVAC desiccant wheel system and method An HVAC system includes a desiccant wheel, wherein the wheel's speed varies with airflow, the wheel is energized for at least a set period at startup, and/or a heat recovery system (e.g., an air-to-air heat exchanger) upstream of the wheel enhances the system's abil... | 06/24/2008 |
| 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 |
| 7337622 | Humidity-based defog control method for a vehicle climate control system A vehicle climate control system develops a fog index based on relative humidity at or near the inner surface of the windshield, and uses the fog index to variably override the normal control settings. The relative humidity is combined with a pair of humidity thresh... | 03/04/2008 |
| 7325748 | Ventilation system with humidity responsive ventilation controller A method of controlling ventilation including determining a current gradient, comparing the current gradient to a threshold and activating a device coupled to a ventilation controller if the current gradient is greater than or equal to the threshold. ... | 02/05/2008 |
| 7296621 | Air conditioner for vehicles and method of controlling same A window glass dew-point compartment interior absolute humidity Xrmax is acquired, and a temporary compartment interior set absolute humidity Xset (temporary Xset) is determined from a compartment interior set temperature Tset. A smaller one of Xrmax and (temporary ... | 11/20/2007 |
| 7257956 | Cooling apparatus A cooling apparatus configured such that a cooling body provided with heat-dissipating plates is pressed against a device to which a socket of a burn-in board is attached, and air is provided by a blower such that the air passes between the heat-dissipating plates, ... | 08/21/2007 |
| 7222666 | Vehicle air-conditioning apparatus that can surely defog window A vehicle air-conditioning apparatus includes a dehumidification means, which has a compressor and dehumidifies inside of the vehicle, a humidity calculation means, which calculates humidity in the vicinity of an inside surface of the windshield, and a determination... | 05/29/2007 |
| 7208066 | Substrate processing apparatus and substrate processing method On top of respective areas divided by partition plates, that is, a cassette station, a processing station, and an interface section in a coating and developing processing system, gas supply sections for supplying an inert gas into the respective areas are provided. ... | 04/24/2007 |
| 7195542 | Process, apparatus and slurry for wire sawing A wire saw (1; 100) for cutting a workpiece includes a device (21, 22, 24, 27) for setting, controlling and/or maintaining a predetermined or desired water content in at least part of the gaseous medium that contacts the slurry. With the wire saw accor... | 03/27/2007 |
| 7155318 | Air conditioning unit control to reduce moisture varying operations In a method of operating an air conditioning unit to reduce moisture varying operations, psychrometric chart data is accessed. In addition, a constraint is set on the relationship between the temperature of air supplied by the air conditioning unit and the relative ... | 12/26/2006 |
| 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 |
| 7052791 | Apparatus for humidification and temperature control of incoming fuel cell process gas An apparatus for humidifying and controlling the temperature of a process gas stream; has a first humidification unit for super-saturating and heating the process gas stream at a first pre-set temperature; and a first heat exchanger for cooling the process gas strea... | 05/30/2006 |
| 7013655 | Method and systems to provide pre-engineered components and custom designed components to satisfy the requirements of an engineered air conditioning system A method to manufacture an engineered air-conditioning system that satisfies desired air-conditioning specifications, the engineered air-conditioning system including a refrigeration component coupled to at least one of an energy recovery system and an indirect evap... | 03/21/2006 |
| 6978631 | Dehumidification system A dehumidification system including a controller having a humidity sensor switch that turns the dehumidifier, as well as the plurality of fans, on and off based on the ambient humidity of the area in which the dehumidification system is placed. Additionally, the deh... | 12/27/2005 |
| 6928831 | Combined cooling plant/heat pump for cooling, heating and dehumidifying a motor vehicle interior The invention relates to a combined cooling plant/heat pump for use in motor vehicles for the cooling, heating and dehumidification of the vehicle interior. A refrigerant circuit is thermally coupled to the ventilation system over an internal heat exchanger having t... | 08/16/2005 |
| 6926079 | Humidity controller Methods and apparatus for controlling a climate control system for an enclosure, including a controller for operating a cooling system and a humidification system. The cooling system is operated to maintain the temperature of the air within the enclosure at a specif... | 08/09/2005 |
| 6892807 | Seat with temperature control and ventilation and safety system for a vehicle Methods and apparatus for controlling the temperature of a seat such as a vehicle seat are disclosed. The apparatus includes an electrical heater disposed in the seat, a cooling unit such as a cooling element and a fan, a detector for detecting the temperature assoc... | 05/17/2005 |
| 6668917 | Energy saving defog/device operation strategy and control scheme for vehicles An energy-saving method for operating a climate control system includes reporting an ambient outside temperature from a first temperature sensor to a controller unit and reporting a climate control air temperature from a second temperature sensor to the c... | 12/30/2003 |
| 6508303 | Air supply control device An air supply control device for use in the heating, cooling, and conditioning of an air supply to a predetermined temperature. The device includes a cooling unit that is adapted to cool the air passing through the unit. The device incorporates a variable... | 01/21/2003 |
| 6446877 | Gas fired humidifier A system for providing humidified air includes a tank containing water and one or more heat exchanger tubes mounted in the tank. The system includes a burner assembly positioned to supply heat to the heat exchanger tubes. The system includes an induction ... | 09/10/2002 |
| 6415617 | Model based economizer control of an air handling unit A strategy for controlling an air side economizer of an HVAC system uses a model of the airflow through the system to estimate the load in two modes when minimum and maximum amounts of outdoor air are being introduced into the building. Transitions betwee... | 07/09/2002 |
| 6328095 | Heat recovery ventilator with make-up air capability A ventilation system for ventilating fresh air to a conditioned space, the system capable of supplying substantially more air to the space than is removed by the system in order to prevent depressurization inside the space. Passing through the unit housin... | 12/11/2001 |
| 6286501 | Humidifier system A humidifier for adjusting the humidity level in a building, the humidifier having a heat exchange tube adapted to be heated by a furnace as the furnace heats air to be circulated through the building; an evaporation tube, in fluid communication with the ... | 09/11/2001 |
| 6279650 | Temperature-Humidity controller for semiconductor equipment and controlling method thereof A temperature-humidity controller for a semiconductor equipment comprises a housing; an inlet pipe for introducing processing air, which has a discharging portion for flowing the air into an inner portion of the housing; a water supplying means for supply... | 08/28/2001 |
| 6213198 | Air conditioning apparatus for vehicle with thermoelectric dehumidifier in a double layer system An electric element (Peltier element composite) is disposed in a boundary between an outside air introduction passage and an inside air introduction air passage (114). The Peltier element composite absorbs heat from the inside air in the inside air introd... | 04/10/2001 |
| 6186407 | Humidity control based on an estimation using heating plant cycle, of inside window surface temperature A humidity control system for an enclosure requiring heat from a furnace and having one or more windows, includes sensors for the enclosure temperature and humidity, and a means for measuring the percentage of time which the furnace is operating (load fac... | 02/13/2001 |
| 6164373 | Sample conditioning system for an off-gas monitor panel A sample conditioning apparatus that removes moisture from a saturated gaseous sample and that utilizes the removed moisture for evaporative cooling within the apparatus is described. The sample conditioning apparatus includes a heat exchanger, a condensa... | 12/26/2000 |
| 6076739 | Indoor air quality controlled foggers A fogger array, permanent wash down filters, and a digital controller for use in a heating, ventilating and air conditioning system having sensors and controls, the heating, ventilating and air conditioning system having a return air and a supply air plen... | 06/20/2000 |
| 5915473 | Integrated humidity and temperature controller A method of operating an HVAC system having an HVAC control and a humidity limiting control. The method comprises the steps of: determining a relative humidity limit for a space; monitoring relative humidity in the space; comparing the relative humidity t... | 06/29/1999 |
| 5775580 | Evaporative cooling system An evaporative device for cooling a stream of air for cooling a space into which the air is discharged. The device includes psychrometric sensors installed in the air stream at an evaporation pad which provide signals to a control device. The stream of ai... | 07/07/1998 |
| 5701950 | Water feed device for humidification and air conditioning apparatus incorporating the same There is provided a water feed device for humidification, comprising: an outflow reservoir that is disposed above a humidifier for feeding water into the humidifier by way of a permeation and that is provided with an overflow dam for maintaining a level o... | 12/30/1997 |
| 5615491 | Apparatus for drying the air duct of a vehicle air conditioner An apparatus for drying the inside of the air duct of a vehicle air conditioner with heating, cooling and drying mode, which includes a first duct part containing a heater unit, a second duct part containing an evaporation unit, the first and second duct ... | 04/01/1997 |
| 5558084 | Humidifier with delivery tube condensation preventing structure and control A humidifier having an ambient temperature sensor for sensing the temperature of the ambient air in the environment in which the humidifier is located. A difference temperature selector is provided to allow a user to select a difference temperature which ... | 09/24/1996 |
| 5497823 | Energy recovery ventilator: means for defrosting heat exchanger medium and damper motor actuation means In an energy recovery ventilator (ERV) for exchanging indoor air with outdoor air. The ERV having a housing including first and second input ports, and, first and second exhaust ports, and a heat exchanger core. The ERV further having a first blower for d... | 03/12/1996 |
| 5450726 | Thermal electric air cooling apparatus and method A method for cooling air to a predetermined outflow temperature for use in an atmosphere having a controlled humidity. In the method, a stream of air having an unknown temperature and an unknown humidity content is supplied. The air is cooled to provide c... | 09/19/1995 |
| 5445214 | Cooling/heating air conditioner and control circuit thereof An air conditioner includes a fan for forcing air through an air path. An endless belt filter travels through a water tank and across the air path to exchange heat with air passing through the belt filter. A heater is provided for selectively heating the ... | 08/29/1995 |
| 5372011 | Air conditioning and heat pump system utilizing thermal storage A method and apparatus for controlling temperature and humidity of an air stream by chilling a cold storage material and warming a heat storage material by evaporation and condensation respectively from a fixed capacity refrigeration cycle, and selectivel... | 12/13/1994 |
| 5179998 | Heat recovery ventilating dehumidifier A heat recovery ventilating dehumidifier provides fresh, cool, low relative humidity air to a building or room during warm weather, and warm fresh air during cold weather. Fresh air is drawn into the heat recovery ventilating dehumidifier, cooled and dehu... | 01/19/1993 |
| 4793144 | Air conditioning installation with centrifugal sprayers The invention concerns an air conditioning installation with centrifugal sprayers (1). Said installation is essentially comprised of centrifugal sprayers (1) each provided with a deflector (2) and connected to a loop circuit (3) incorporating a buffer res... | 12/27/1988 |
| 4766950 | Controller for an air conditioner of vehicles In an air conditioner of vehicles including a fan for sending air, a cooling unit for cooling air sent by the fan, a heater for heating air sent by the fan, an air mix damper for adjusting the amount of air passing through the heater and cooled by the coo... | 08/30/1988 |
