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| Number | Title | Issue Date |
| 7641546 | Cooling apparatus and method for controlling the same A cooling apparatus and a method for controlling the same are disclosed. The cooling apparatus is adapted to cool a system in which a heat source generating heat is arranged. The cooling apparatus includes an air stream forming unit which cools the heat source to a ... | 01/05/2010 |
| 7632178 | Ventilation blower controls employing air quality sensors A fresh air ventilation system in a building having an outside wall exhausts contaminants, such as stale or noxious air, through the outside wall and takes in fresh air. A remote switch sets a mode of operation of the ventilation system. One or more strategically pl... | 12/15/2009 |
| 7409986 | Method for controlling flow rate of ventilating air in air conditioner A method for controlling flow rates of outdoor air supplied to a room and room air discharged to an outside of the room in ventilation. The method of the present invention includes the steps of supplying outdoor air drawn through an air supply duct to a room at a fi... | 08/12/2008 |
| 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 |
| 7365507 | Power control apparatus for motor A power control apparatus for a motor is disclosed. The power control apparatus includes: a moisture sensor for detecting moisture soaking into a housing including the motor; and a switching unit which is switched by an output signal of the moisture sensor, and swit... | 04/29/2008 |
| 7361304 | Building decontamination with vaporous hydrogen peroxide When microbial contamination is introduced into a room (20*) of an enclosure, such as a building, an HVAC system including supply ductwork (16) and a return ductwork (34) is decontaminated with hydrogen peroxide vapor. A decontamination controll... | 04/22/2008 |
| 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 |
| 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 |
| 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 |
| 7231744 | Roof venting system for improved interior air quality and hot water and electricity production A roof venting system comprising a second roof layer disposed above a first roof layer with a spacer disposed therebetween to provide an air flow channel between the two roof layers. A gap is provided in the upper roof layer at or near the top end of the roof and a ... | 06/19/2007 |
| 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 |
| 7195556 | Moveable soffit cover system and associated methods A moveable soffit cover system includes a guide track for connecting to a structure adjacent a soffit panel having a plurality of vents formed therein, and a soffit vent cover slidably connected to the guide track to overlie the soffit panel. The vent cover is movea... | 03/27/2007 |
| 7178297 | Structures incorporating interlocking wall modules Modular structures constructed from interlocking wall modules made of plate steel and assembled with C-channel connectors, including tongue and groove elements used to position adjoining modules adjacent to one another, for example during the construction of a cell ... | 02/20/2007 |
| 7150314 | Dual exhaust energy recovery system A heat recovery arrangement. The arrangement has a housing including a bathroom exhaust inlet, an exhaust outlet, a bathroom exhaust airflow path through the housing from the bathroom exhaust inlet to the exhaust outlet, a return air inlet, and a return air path thr... | 12/19/2006 |
| 7143551 | Vented insulated building An improved building structure that eliminates condensation at exterior building walls, thereby preventing mold growth and avoiding the damage, environmental degradation and health problems associated with mold growth includes enveloping spaces that allow natural co... | 12/05/2006 |
| 7097557 | Insulated crawlspace vent apparatus, and methods of installing same An insulated crawlspace vent to provide airflow in a crawlspace in the summer and insulate it in the winter. An aluminum extrusion built as a picture frame is glued to the opening in the foundation of the crawlspace. An insulated door closes from the outside and is ... | 08/29/2006 |
| 7010392 | Energy efficient CRAC unit operation using heat transfer levels A method for controlling one or more computer room air conditioning (CRAC) units for energy efficient operation, in which, the temperature of the air returned (Trat) into the one or more CRAC units and the temperature of the air supplied (Tsat) by the one or more CR... | 03/07/2006 |
| 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 |
| 6958010 | Crawl space ventilation system A fan unit centrally located within a crawl space includes a fan, a fan motor, an inlet grill, and an outlet grill. A timer connected in the power supply activates the fan motor at periodic predetermined time intervals to move the crawl space air through the fan uni... | 10/25/2005 |
| 6926602 | Crawl space ventilation system A fan unit being suspended from a building floor structure within a crawl space. The fan unit includes a fan, a fan motor, an inlet grill, a discharge plenum and an outlet grill. A timer connected in the power supply activates the fan motor at periodic predetermined... | 08/09/2005 |
| 6796896 | Environmental control unit, and air handling systems and methods using same An environmental control unit, and air handling systems using it, that combines, as a unitary packaged unit, equipment and associated functionality for air handling and affording protection to occupants and/or equipment in an enclosure against airborne release of ch... | 09/28/2004 |
| 6722972 | Safety release for curtains used in livestock confinement buildings Confinement houses such as those housing poultry or hogs are artificially ventilated. To provide fresh air, there are openings along the walls. To control the amount of effective opening, fabric curtains are provided to cover the openings to varying degrees, dependi... | 04/20/2004 |
| 6699120 | Method and system for controlling ventilation Internal climate comfort in a living room occupied by human users is controlled by natural ventilation, through at least two external adjustable openings and at least one internal opening, said natural ventilation being determined from a constant physical... | 03/02/2004 |
| 6687640 | Airborne agent concentration analysis A method and system for inferring airborne contaminant concentrations in rooms without contaminant sensors, based on data collected by contaminant sensors in other rooms of a building, using known airflow interconnectivity data. The method solves a least ... | 02/03/2004 |
| 6540603 | Method and system for the regulation of ventilation in a welding workshop A method and a system for the regulation of ventilation in a welding workshop, in which method the volume of supply air and/or extract air in the ventilation of the welding workshop is regulated. The basis of regulation of the volume is the load imposed o... | 04/01/2003 |
| 6468054 | Crawl space ventilator fan A crawl space ventilator includes a molded plastic self-contained support frame 20, with low voltage fan(s) 40 mounted therein. The frame 20 including a screened face plate 14 with adjustable hooks 22 or other such means for attachment to existing crawl s... | 10/22/2002 |
| 6454176 | Holding cabinet with closed-loop humidity control system and method for controlling humidity in a holding cabinet A holding cabinet with closed-loop humidity control system and method for controlling humidity in a holding cabinet are disclosed. According to an embodiment, the method comprises determining a relative humidity set point; activating a heater in a fluid p... | 09/24/2002 |
| 6319115 | Air cycle houses and house ventilation system An indoor space is externally enclosed and thermally insulated by an underfloor insulating layer, a wall insulating layer and a ceiling insulating layer. An underfloor ventilation layer is defined between a floor and the underfloor insulating layer, and a... | 11/20/2001 |
| 6283851 | Make up air equipment control A system for controlling make-up air apparatus for a controlled building space includes a first sensor for sensing the operation of a first appliance within a building space. The appliance causes the air to be exhausted from the controlled building space.... | 09/04/2001 |
| 6272399 | Method and system for maintaining a desired air flow through a fume hood The present invention pertains to a system for controlling a fume hood with a face. The system comprises a device for controlling air flow through the fume hood based on air flow face velocity. The controlling device has a device for measuring pressure at... | 08/07/2001 |
| 6257230 | Adapter for ventless fireplace A gas fireplace is provided having a plenum formed around at least a portion of the fireplace firebox. Room air enters the plenum and is heated by the firebox prior to venting back into the room. Two openings are provided from the outside of the fireplace... | 07/10/2001 |
| 6227194 | Fireplace A gas fireplace is provided having a plenum formed around at least a portion of the fireplace firebox. Room air enters the plenum and is heated by the firebox prior to venting back into the room. Two openings are provided from the outside of the fireplace... | 05/08/2001 |
| 6221160 | Method and apparatus for environmental control in a process chamber An apparatus and a method for environmental control in a process chamber, and specifically, in a spin coating chamber are disclosed. In the apparatus, an air velocity control system which consists of a pressure sensor, a throttle valve controller and a th... | 04/24/2001 |
| 6220956 | Soffit fan An apparatus for increasing ventilation of heated and/or moisture-laden air from an attic or roof crawl space (12) in a dwelling or the like, a soffit fan (30) acts to accelerate natural convection by creating an air flow (16) from pulling cooler, denser ... | 04/24/2001 |
| 6169849 | Ventilation--heating apparatus A ventilation-heating apparatus comprises a fresh air passage with which a fresh air ventilation mechanism is associated and which opens into a room-side inflow air supply opening. The ventilation-heating apparatus further comprises a room air passage wit... | 01/02/2001 |
| 6119715 | Automated pneumatic purger An automatic control system for providing pneumatic purging protection for a sealed enclosure containing electrical equipment in accordance with the National Fire Protection Association standards. The system supplies a purge gas under a pre-ordained press... | 09/19/2000 |
| 6076363 | Recreational vehicle refrigerator heat control system A heat exhaust system for installation in the space behind the refrigerator of a recreational vehicle for disposal of heat that builds up behind an RV refrigerator from the operation thereof. The system operates automatically to turn on a fan to dissipate... | 06/20/2000 |
| 6036595 | Safety system for smoke and fumes A detector in a space to be sensed and controlled gives an electrical signal upon fumes in the space reaching a predetermined level. An electrical circuit is thereby energized to operate a fan to exhaust the space. Inlet and outlet openings in the structu... | 03/14/2000 |
| 5989119 | Automatic power flow fresh air inlet A modular automatic power flow fresh air inlet comprising a housing having fresh air openings between a source of fresh air and a room, having an adjustable static pressure to be ventilated. The fresh air openings may be controlled by a valve plate pivota... | 11/23/1999 |
| 5951394 | Controller to maintain a certain set of environmental parameters in an environment This invention continuously monitors the differential pressure between two environments, and dynamically adjusts the air handling system of the controlled environment to maintain a desired differential pressure setpoint by using a closed loop control meth... | 09/14/1999 |
