| Air Tech Equipment Ltd. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110155343 | HEAT OR ENERGY RECOVERY HOUSING AND SEALING SYSTEM - A heat and energy recovery ventilator housing comprising at least one means for releasable sealing engagement of the at least one energy core to the housing and for providing an air tight seal between the at least one energy core and an interior of the housing, said sealing means positioned to prevent a leakage between the supply airflow and the exhaust airflow, is described. A sealing system comprising a gasket having a sealing surface and a rail having contact surface, said gasket attachable to an interior of the ventilator housing and said rail attachable to the core at a location in alignment with the gasket, the gasket and the rail, when positioned in alignment, magnetically cooperating thereby forming an airtight seal for preventing an air leakage between the supply airflow and the return airflow within the housing but outside of the core is also described. The ventilator housing and sealing system allows for the easy insertion and removal of a heat or energy recovery ventilator core while maintaining an airtight seal when the core is in place. | 06-30-2011 |
| 20100286831 | METHOD AND APPARATUS FOR CONTROLLING VENTILATION SYSTEMS - An energy recovery ventilation system is described which allows for continuous fan speed control through pulse width modulation of direct current fans. The energy recovery ventilation described is capable of fine motor speed control without the disadvantages of high noise, low efficiency and a fixed number of speeds present in commonly-used speed-varying techniques used with alternating current (AC) fans. This may be accomplished through the use of direct current (DC) fans and pulse width modulation. A controller is used to optimize the ventilation and energy efficiency of the system through the use of several temperature sensors. The energy recovery ventilation also provides a control process for self-optimization of the energy recovery ventilation, in case the supply and exhaust airflows are unequal. An unbalance may be detected by calculating the thermal efficiencies of the exhaust and supply airflows. | 11-11-2010 |
| 20090222138 | VENTILATOR CONTROL OPTIMIZER - A ventilator control optimizer allowing the control of a ventilator without the need for manual input. The ventilator control optimizer analyzes trends in indoor environmental conditions (dew point, relative humidity, etc.) and makes decisions based on these trends. The ventilator control optimizer is able to change ventilator fan speeds depending on the detected trends. This will prevent the ventilator from operating under conditions which might aggravate the humidity problem indoors. The ventilator control optimizer also allows auxiliary systems (dehumidifier, etc.) to be controlled automatically to deal with high humidity conditions. | 09-03-2009 |
| 20090101727 | DEHUMIDIFYING SYSTEM - A system providing for basement or crawlspace ventilation is described. The system allows for a reduction in the relative humidity levels of a basement or crawlspace and an increased basement or crawlspace ventilation. The basement or crawlspace ventilator includes: an inlet, duct and outlet for receiving air from the upper levels of a building and exhausting it into the basement or crawlspace of said building; a basement inlet, duct and outlet for receiving air from the basement or crawlspace and exhausting it to the outside atmosphere; an inlet, duct and outlet for transferring outside air to, and then expelling from a heat exchange core; an inlet, duct and outlet for transferring basement or crawlspace air to and from the heat exchange core; a heat exchange core used to transfer heat from the outside atmosphere to the basement or crawlspace air; and a plurality of fans for forcing ventilation from the upper levels of the building to the basement or crawlspace and from the basement or crawlspace to the outside atmosphere, from the outside atmosphere to the heat exchange core, and from the basement or crawlspace to the heat exchange core. | 04-23-2009 |
| 20080230206 | Energy Recovery and Humidity Control - A system and method for energy recovery and humidity control comprises an enclosure ( | 09-25-2008 |
