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| Number | Title | Issue Date |
| 7364094 | Method and apparatus for controlling space conditioning in an occupied space Techniques for controlling air conditioning and transfer air in an occupied space are described. The example of a commercial restaurant is provided. Features of model based control and integration of load predictors is also described. ... | 04/29/2008 |
| 7357394 | Modular shooting range Disclosed is a modular, expandable, and portable shooting range system. The system can include one or more shooting modules that mount together to provide different numbers of shooting lanes with various lengths. The shooting modules are pre-engineered with removabl... | 04/15/2008 |
| 7338358 | Apparatus for air purifying and ventilating Disclosed is a combination air purifier and ventilator. The air purifier in accordance with the present invention includes a case being provided on a ceiling or a wall and having a fan therein, a first passage communicating with an outside, an inside of the case and... | 03/04/2008 |
| 7335243 | Modular biosafety containment apparatus and system The present invention relates to apparatus and systems for isolating hazardous agents and organisms from their handlers and the public. In particular, the present invention relates to modular negative pressure biological containment chambers. ... | 02/26/2008 |
| 7331852 | Method and apparatus for sampling and controlling ventilation airflow into a structure A totally integrated ventilation system is contained in the outside air inlet stream. The system samples and controls ventilation airflow as it enters a structure. An air valve connecting the outside air inlet stream to the return plenum is controlled by a valve pos... | 02/19/2008 |
| 7331854 | Common filtration unit for building makeup air and emergency exhaust A building protection system comprises a filtration unit, an air handling unit, an emergency exhaust subsystem, a first damper positioned between the filtration unit and the air handling unit, and a second damper positioned between the emergency exhaust subsystem an... | 02/19/2008 |
| 7332006 | Ventilating and air purifying device Ventilating and air purifying device including a case having a blower therein provided to a ceiling or a wall, a first flow passage provided between the blower and a room for making an outdoor, the blower, and the room in communication, a second flow passage for mak... | 02/19/2008 |
| 7326269 | NBC filtration unit providing unfiltered and filtered air paths A filtration unit for use with an environmental control unit (ECU), usually a portable ECU, which includes at least two air flow paths wherein at least one of the air flow paths allows for use of air which has not passed through a nuclear, biological, and chemical (... | 02/05/2008 |
| 7315448 | Air-cooled heat generating device airflow control system A system for controlling airflow around an air-cooled heat generating device includes a cooling fluid line and heat exchangers positioned along the cooling fluid line to cool airflow around components in the heat generating device. The heat exchangers are positioned... | 01/01/2008 |
| 7294052 | Control for dual stepper motors In an air handling unit for discharging a flow of air into the surrounding ambient, having a series of horizontal louvers and a series of vertical louvers mounted in the discharge flow. A first multi-phase stepper motor is arranged to step the horizontal louvers to ... | 11/13/2007 |
| 7284382 | Apparatus and method for controlling a fan, cooling unit and a fresh air damper of an air conditioner through use of a Capno-Switch A fresh air controller interfaces directly with the electromechanical circuit of an air-conditioner to control its operating settings based upon detected Carbon Dioxide (CO2) level in Parts-Per-Million (PPM) using a “Capno-Switch” which is in essence a specially... | 10/23/2007 |
| 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 |
| 7263995 | Hyperbaric oxygen therapy system controls A hyperbaric oxygen therapy system includes a pressure vessel containing a gas, an oxygen concentration measurement apparatus for monitoring the concentration of oxygen in the gas, an environmental control apparatus for controlling the temperature of the gas in the ... | 09/04/2007 |
| 7251953 | Environmental control unit for hospital room An air conditioner and filtering unit produces a positive or negative pressure to create an isolation space. A common air intake plenum has first and second inlets for admitting return air from the space or outside air which may be from a building main A/C system su... | 08/07/2007 |
| 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 |
| 7231808 | Method and apparatus for measuring oxygen content A method and apparatus for measuring the oxygen content in a closed target space, particularly for monitoring inertization levels in an inert gas device for fire prevention and/or fire extinguishing. Toward the aim of proposing a method for measuring the oxygen cont... | 06/19/2007 |
| 7202791 | Method and apparatus for modeling behavior using a probability distrubution function A method and apparatus are disclosed for modeling patterns of behavior of humans or other animate objects and detecting a violation of a repetitive pattern of behavior. The behavior of one or more persons is observed over time and features of the behavior are record... | 04/10/2007 |
| 7201787 | Air cleaner and method of controlling operation thereof An air cleaner and method of controlling an operation of the same is disclosed. The air cleaner includes a cabinet having an inlet and an outlet; a filter assembly removing dust and smell particles from a room air; a fan; a sensor assembly sensing the composition of... | 04/10/2007 |
| 7194870 | High performance dehumidifier A dehumidifier includes a compressor delivering hot compressed refrigerant, a desuperheater coil receiving refrigerant from the compressor and condensing same, a condenser coil receiving refrigerant from the desuperheater coil and condensing same, an expansion devic... | 03/27/2007 |
| 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 |
| 7135965 | Hazardous condition detection system and method and thermostat for use therewith An intelligent thermostat communicates with threat detectors to allow periodic remote testing of the detector. The real-time clock and calendar functions of the thermostat allow the consumer to program the day, time, and frequency of the testing. The thermostat then... | 11/14/2006 |
| 7131398 | Air flow sensing and control for animal confinement system An environmental monitoring and controlling system for a ventilated cage and rack system that monitors and measures air flow in the rack at either the rack or cage level. At the rack level, two pressure sensors are provided in a supply air system to accurately monit... | 11/07/2006 |
| 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 |
| 7081049 | Ventilating system Ventilating system including a case mounted on a ceiling of a room, an inlet in a bottom surface of the case, and an outlet in a side surface of the case, a partition for dividing the case into an upper space, and a lower space, a fan in the upper space of the case,... | 07/25/2006 |
| 7073442 | Apparatus, systems and methods for use in three-dimensional printing Apparatus, systems and methods for use in three-dimensional printing are shown and described. Various embodiments of the invention allow for more precise and controlled delivery of heat to achieve interlayer drying; isolation of the working region from the outside f... | 07/11/2006 |
| 7059536 | Air circulation system An air circulation system for use with or without ductwork having an outside air stream and a return air stream includes a controller and a return damper apparatus operatively connecting the return air stream to the controlled environment. The air circulation system... | 06/13/2006 |
| 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 |
| 7044397 | Fresh air ventilation control methods and systems Methods and systems are disclosed for meeting a fresh air ventilation threshold in a controlled space. In particular, and in some embodiments, a minimum ventilation threshold is met by using normal air handler fan cycles to minimize the energy cost of supplying the ... | 05/16/2006 |
| 7033268 | Multi-mode damper actuator A damper actuator for a ventilation damper serves as both a control device for the ventilation damper and a fire and smoke rated device for the ventilation damper. The damper actuator includes a modulating motor controller, a two-point motor controller, and a therma... | 04/25/2006 |
| 7028506 | Indoor unit of packaged air conditioner Disclosed is an indoor unit of a packaged air conditioner including a cabinet having an inlet grill at a lower part and an outlet grill at an upper part so as to provide a circulation space of an indoor air, an evaporator established on a slant at an inner upper par... | 04/18/2006 |
| 7011577 | Ventilating system Ventilating system including a case mounted on a ceiling of a room, an inlet in a bottom surface of the case, and an outlet in a side surface of the case, a partition for dividing the case into an upper space, and a lower space, a fan in the upper space of the case,... | 03/14/2006 |
| 7007498 | HVAC cabinet with configurable duct connections A cabinet for air handling equipment includes two similarly sized covers that are each nonsymmetrical about their vertical centerline. Each cover has an original supply or return air duct opening plus space for an alternate opening. The original and alternate openin... | 03/07/2006 |
| 7003377 | Controlling cooling air intake for air cooled equipment A method and apparatus for supplying cooling air to electronic equipment from ones of at least two sources. A detector detects whether the quality, such as the temperature of the cooling air from a source, is satisfactory and if not shuts the damper to that source a... | 02/21/2006 |
| 6996453 | Substrate processing apparatus and method of processing substrate while controlling for contamination in substrate transfer module A substrate processing apparatus for processing substrates prevents the substrates from contaminating as they are transferred. The apparatus includes a container, like a FOUP, for containing substrates, at least one processing chamber where the substrates are proces... | 02/07/2006 |
| 6976911 | Method and apparatus for filtering airborne contaminants A method and apparatus for removing airborne contaminants in residential or commercial buildings injects filtered air into these enclosures. Prior to be injected in these enclosures, the air is filtered for chemical, biological or radioactive hazards. The filtering ... | 12/20/2005 |
| 6974380 | Laboratory air handling unit The invention is an air handling system that is shared between a laboratory and offices within the same building. The normally separate office and lab systems have been combined by way of an air return system that draws air from the offices and feeds into both the o... | 12/13/2005 |
| 6962150 | Pool heating system A modular swimming pool water heating system including a first casing for mounting in an attic of a building, a heat exchange unit removably mounted in said first casing, an opening in said first casing permitting access to the interior of the first casing for recei... | 11/08/2005 |
| 6948553 | Modular heat recovery ventilation system A modular heat recovery ventilation system includes a modular heat exchanger and a modular apparatus spaced from the heat exchanger for delivering both fresh air and exhaust air to the heat exchanger. The apparatus includes separate blowers for generating two separa... | 09/27/2005 |
