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| Number | Title | Issue Date |
| 8172655 | Air conditioner An air conditioner includes an air conditioning module and a wireless access module. The air conditioning module has at least one blade for controlling the wind direction of the air conditioning module. The wireless access module has at least one antenna. The antenn... | 05/08/2012 |
| 8066558 | Demand control ventilation sensor failure Demand ventilation protocols can address the issue of sensor failure while still providing desirable levels of energy conservation. An occupancy indicator such as a sensor can be monitored. If the sensor reading is determined to be incorrect, unexpected or otherwise... | 11/29/2011 |
| 7758408 | Dehumidifying ventilation and regulation of airflow in enclosed structures A system and method for regulating humidity in an enclosed structure, including an outside humidity sensor; an outside temperature sensor; an inside humidity sensor; an inside temperature sensor; a ventilation system; and a computing unit that receives sensor inform... | 07/20/2010 |
| 7758407 | Ventilation control based on occupancy An arrangement for use in an occupancy-based ventilation system includes a plurality of CO2 sensors and a processing circuit. The plurality of CO2 sensors are disbursed throughout a plurality of spaces in a building. The processing circuit is operably coupled to rec... | 07/20/2010 |
| 7682234 | Correlation of airflow delivery devices and air movers In a method for correlating airflow delivery devices with air conditioning (AC) units having actuators for varying flow rates of air supplied by the air movers, flow rates of air supplied through the airflow delivery devices at a plurality of settings of the actuato... | 03/23/2010 |
| 7455583 | Ventilator including a control unit and human sensor The invention presents a ventilator capable of obtaining an optimum flow rate required in ordinary ventilation. The ventilator comprises an exhaust fan motor for exhausting room air by force, and a human sensor for detecting the presence of human body. It further co... | 11/25/2008 |
| 7442119 | Ventilation device, particularly an exhaust hood with air flow control means Disclosed is an exhaust hood (10) comprising a drive unit (20) for generating an air flow, a control device or control circuit for controlling the drive unit (20), and a measurement section comprising a transmitter device (22) and a recei... | 10/28/2008 |
| 7363969 | Casing vent security device A casing vent security device includes an in-line section in communication with a casing vent, the in-line section having an ambient air passageway for selectively allowing ambient air to pass through the in-line section and into the vent. The device further include... | 04/29/2008 |
| 7302959 | Low-power wireless inflatable bladder damper for forced air heating, ventilation, and air conditioning systems A low-power, wireless, inflatable bladder damper device for controlling the flow of air through an airflow channel, and a method of operation for the same. Rather than requiring power supply and/or control wiring for operation of a wireless damper device, a low-powe... | 12/04/2007 |
| 7302313 | Air quality monitoring systems and methods An air monitoring system is disclosed having an air monitoring unit with at least one sensor for measuring data of an air quality parameter and a computer for storing the air quality parameter data received from the sensor. The air monitoring unit may use an install... | 11/27/2007 |
| 7275533 | Pressure controller for a mechanical draft system Systems and method for controlling the flow of air through a mechanical draft system are disclosed herein. A pressure controller for controlling air pressure comprises an appliance controller configured to control the operation of a plurality of appliances, an intak... | 10/02/2007 |
| 7272452 | Controller with configurable connections between data processing components A controller with configurable connections between data processing components that is optimized to provide a particular function such as temperature control is provided. In one embodiment, the controller includes a number of configurable inputs and outputs that may ... | 09/18/2007 |
| 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 |
| 7247834 | Photoelectric sensor for detecting presence/absence of object An object of the present invention is to enable the detection of the presence/absence of an object over a plurality of detection areas without using a plurality of light-receiving devices and light-emitting devices. A sensor detects the presence/absence of an object... | 07/24/2007 |
| 7238106 | Air delivery system The present invention relates to a system for delivering temperature and flow rate controlled warmed air to outlets for use in various apparatus. The system is typically in residential structures, such as homes, but could easily be adapted for apartment buildings as... | 07/03/2007 |
| 7234269 | Animal test chamber An animal test chamber has one or more side walls, a ceiling, and a floor to define an internal space in which animals can be housed and exposed to a chemical agent, a door, a port for introducing animals, an exhaust port, and one or more of the following four featu... | 06/26/2007 |
| 7228657 | Climate control for a greenhouse A greenhouse has an exterior curtain wall structure formed by spaced tubular posts carrying external transparent panels and bottom non-transparent wall panels below a sill with the panels spanning the posts. A plurality of elongate benches is located within the inte... | 06/12/2007 |
| 7196903 | Multiple source fan control with override An electronic system may comprise a variable speed fan, a first source coupled to the fan, and a second source coupled to the fan. Either of the first or second sources may control the speed of the fan. ... | 03/27/2007 |
| 7178291 | Automated shutter control An automated shutter control for a shutter having a plurality of slats which are pivoted in unison, the automated shutter control comprises a motor, a slat interface having a body portion and a connector portion, the connector portion having a contour configured to ... | 02/20/2007 |
| 7174239 | Retrieving diagnostic information from an HVAC component A control is provided for controlling the operation of a climate control system, which includes a processor that is capable of receiving power from a low voltage power supply adapted to be connected to an external alternating current power source, or a second extern... | 02/06/2007 |
| 7169039 | Positive air flow shutdown system An airflow shutdown system that includes an air distribution system and an air duct closure device. The air duct closure device is adapted to substantially instantaneously block airflow in the air distribution system when activated. The system also includes an integ... | 01/30/2007 |
| 7156316 | Zone thermostat for zone heating and cooling A zone thermostat for use in connection with an Electronically-Controlled Register vent (ECRV) that can be easily installed by a homeowner or general handyman is disclosed. The ECRV can be used to convert a non-zoned HVAC system into a zoned system. The ECRV can als... | 01/02/2007 |
| 7147168 | Zone control of space conditioning system with varied uses A space conditioning system for a building including production and occupied spaces provides precise control of exhaust and space conditioning equipment by taking into account multiple conditions and by using predictive control. The control method and system are ill... | 12/12/2006 |
| 7130720 | Radio frequency enabled control of environmental zones A system, apparatus and method for controlling environmental zones in a residence or other building using radio frequency enabled environmental controllers. At least one damper is associated with each of the various zones. From each environmental controller, a comma... | 10/31/2006 |
| 7108600 | Air duct register The present invention provides an air duct registrer for adding forced air (heat, air conditioning), exhausting air or simply to balance air quality. The air duct register has a manifold and is designed with a removable manifold collar connectible to the flexible or... | 09/19/2006 |
| 7109853 | System for detecting and releasing a person locked in the trunk of a vehicle A vehicle safety system automatically detects the presence of a person sealed in the trunk of an automobile by sensing the CO2 respiration of the person. Visible, audio and radio alarms are generated in response to the detection of a person in the trunk. ... | 09/19/2006 |
| 7094142 | Portable device with interchangeable air cleaning modules for cleaning the air outside of an existing enclosed space and delivering the cleaned air into the existing enclosed space A portable device that is placed between the ambient air outside an existing enclosed space and the existing enclosed space that pulls the ambient air through an interchangeable array of air cleaning modules and delivers the cleaned air from the air cleaning modules... | 08/22/2006 |
| 7089751 | Automatic fresh air exchange system A system and method for automatically providing a fresh air exchange to a cargo unit is disclosed. The system includes a single gas sensor, preferably a carbon dioxide sensor, for providing an input to a controller which derives the carbon dioxide and oxygen levels ... | 08/15/2006 |
| 7079974 | System and method for detecting an object using pulsed light A system and method for detecting an object is provided. The method includes emitting a light pulse. The method further includes receiving a reflection of the light pulse. The method further includes indicating a presence of the object from the received light pulse.... | 07/18/2006 |
| 7059958 | Elevator cabin with integrated ventilation system An elevator cabin with an integrated ventilation system. A fan is attached to the elevator cabin and a vertical side wall of the elevator cabin has a plurality of distributed ventilation holes. At least one air channel element is attached to the side wall, so that t... | 06/13/2006 |
| 7057506 | Cooling fluid provisioning with location aware sensors A method of controlling cooling fluid provisioning in a room housing a plurality of components. The room includes at least one plenum having one or more cooling system components configured to vary a characteristic of at least one of cooling fluid supply to and remo... | 06/06/2006 |
| 7024945 | Flow sensing apparatus A flow sensing apparatus for detecting fluid flow rate and direction is described. The flow sensing apparatus includes a flow-responsive element projecting into the fluid flow path, and a position sensor which detects the degree and direction of any change in positi... | 04/11/2006 |
| 7025672 | Bi-directional connections for daisy-chained dampers A damper unit for an air circulation system. The damper unit includes an air flow opening, a damper vane for opening and closing the air flow opening, and a motor for moving the damper vane between the open and closed positions. The damper also includes at least two... | 04/11/2006 |
| 7022164 | Filters employing porous strongly acidic polymers A clean, high efficiency, low pressure drop, adsorptive filter material that is porous and includes an acidic functional group. The filter can include, for example, a non-woven filter composite has a porous sulfonated divinyl benzene styrene copolymer beads having s... | 04/04/2006 |
| 7014124 | Automated air flow system and method The disclosed embodiments provide and automated air flow system and method. An automated register is coupled to at least one sensor for providing data associated with a structure. The automated register is configured to automatically provide air flow into the struct... | 03/21/2006 |
| 7005994 | Smart fire alarm and gas detection system A smart alarm system determines when fire, carbon monoxide, or both are present in a specific area and responds accordingly. If fire is detected, alarms are activated, emergency services are notified, and ventilation, namely vents and fans, is cut off in the specifi... | 02/28/2006 |
| 6997799 | Damper including a stepper motor A damper unit for an air circulation system. The damper unit includes a frame defining an air flow opening, a damper vane for opening and closing the air flow opening, and a stepper motor for turning the damper vane between the open and closed positions. The stepper... | 02/14/2006 |
| 6998980 | Microfield interface device for monitoring animal cage environments An automatic animal cage monitoring system includes at least one sensor disposed proximate to a cage for detecting conditions within the cage. The sensor data is transmitted by a wireless transmitter system to at least one remotely located device. The system can sim... | 02/14/2006 |
| 6994620 | Method of determining static pressure in a ducted air delivery system using a variable speed blower motor Systems and methods of determining static air pressure in an HVAC system are provided. Static air pressure is mathematically determined as a function of system parameters, such as blower speed, blower diameter, system volume airflow rate, and/or blower motor torque.... | 02/07/2006 |
| 6979260 | Method and device to prevent indoor release of carbon monoxide and smoke from combustors A device to prevent indoor release of carbon monoxide and smoke from indoor combustors (stoves, furnaces, fireplaces, etc.). The device is based on a discovery that safe operation of indoor burners requires the air pressure in the room housing the burner to be relat... | 12/27/2005 |
