| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 454255000 | Pressure regulation | 10 |
| 20100248611 | CONTROLLER FOR REGULATING AIRFLOW IN RODENT CONTAINMENT SYSTEM - Provided are animal containment systems and components, including single-use animal containment cages and modular rack units. Also provided are methods for assembling and using components of the animal containment systems. | 09-30-2010 |
| 20110070818 | AIR BLOWER VALIDATOR, AN HVAC SYSTEM AND A METHOD OF MANUFACTURING AN HVAC SYSTEM - An air blower validator, a heating, ventilating and air conditioning (HVAC) system and a method of manufacturing thereof are disclosed. In one embodiment, the air blower validator includes: (1) a air pressure detector including a first pressure port configured to receive air from inside an air blower housing of an HVAC system and (2) an air collector configured to deliver the air to the first pressure port, the air collector including a pressure tap configured to couple to an opening in the air blower housing. | 03-24-2011 |
| 20120028562 | FLEXIBLE AIR DUCTS WITH GRADUAL INFLATION - Example air duct systems for supplying conditioned air to comfort zones include various example inflatable tubes with various example dampers. The dampers move noticeably slowly and/or its opening is delayed to reduce the rate at which the tube is inflated by a supply air blower. Depending on the particular example, the damper can be either at the inlet end of the tube or at the tube's opposite end. In some examples, the damper is controlled by an actuator that is powered by air or driven by an electric motor. | 02-02-2012 |
| 20120164934 | Venting Device - A vent device comprising at least one control member pivotably supported in an opening in a frame, for movement, in response to differential gas pressure between opposite sides of the opening, between a closed position in which the control member(s) substantially blocks the opening and an open position in which the control member(s) leaves the opening substantially unobstructed for flow of gas therethrough, wherein the or at least one of the control members has associated therewith a restraining mechanism, operable to apply a force to the control member to influence movement thereof between its open and closed positions. | 06-28-2012 |
| 20130149955 | BAROMETRIC RELIEF AIR ZONE DAMPER - A zone damper having a first portion responsive to the static pressure in a HVAC system to open and bleed an amount of conditioned air past the damper when the static pressure of the system increases above a selected level, a second portion controlled by a actuator to move between an open and a closed position in response to a zone thermostat, and a coupling mechanism coupling the first and second portions to limit the relative movements of the two portions with respect to each other, and a biasing mechanism exerting a torque against the system static pressure differential. The first portion can be a single one-piece undivided blade pivotally mounted with a shell surrounding the zone damper. | 06-13-2013 |
| 20140349566 | HVAC Zoning System Having Distributed Intelligence and Method of Manufacture - The present application discloses a method of converting a single zone HVAC system to a multi-zoned HVAC system. More specifically, the present application discloses coupling at least one interface module to at least one controller of a heating unit, cooling unit, and blower assembly. Further, at least one thermostat may be positioned within each desired zone of a multi-zoned structure. The user may then position at least one register on at least one terminus of a duct within each zone. Thereafter, each thermostat within each zone is associated or linked via a communication channel or network with at least one register within the same zone, thereby forming at least one thermostat/register regime within each zone of a structure. The interface module may then be associated with the various thermostat/register regimes. The user may the input at least one of a maximum temperature and minimum set temperature for each zone via at least one of the interface module, a thermostat within each zone, and a register within the zone. Once operating, the thermostat with each zone will measure the temperature within that zone and provide the measured temperature to the associated register. In response, the register can restrict of permit the flow of air to the zone by opening and closing the register based on the temperature measured by thermostat within that zone. | 11-27-2014 |
| 20150079894 | POSITIVE PRESSURE VENTILATION IN ENCLOSED HOUSINGS - The invention provides a positively pressurized housing ventilated by establishing and/or maintaining a pressure differential between at least two chambers in the housing. The invention also provides a method for ventilating a substantially closed housing that involves establishing and/or maintaining a pressure differential between at least two chambers in the housing. | 03-19-2015 |
| 20150099451 | METHODS AND APPARATUS FOR EFFICIENTLY PRESSURIZING AND VENTILATING AN AIR-SUPPORTED STRUCTURE - A set of methods and apparatus for efficiently pressurizing and ventilating an air-supported greenhouse or other structure requiring pressurization and ventilation. A method for efficiently pressurizing and ventilating an air-supported structure comprises directing any external wind flow and external wind pressure into mechanical flow means, such as a fan, or fans in parallel, operating in the intake direction, and into the internal space of the air-supported structure and out of the internal space of the air-supported structure through internal pressure regulating exhaust means, whereby the internal space of the structure will be ventilated and pressurized with the assistance of any external wind and the reliability of mechanical flow means (fans). This method allows for the efficient, effective, and economical cooling, through ventilation, of a protected space created by a light permeable membrane (cover), which is supported only by internal air pressure against the weight of the membrane and dynamic pressures of the external wind, itself. Apparatus for directing any external wind flow and external wind pressure into mechanical flow means are disclosed. Methods and apparatus for internal pressure regulation are also disclosed. Some benefits are less power consumption, minimal internal static pressure (just enough to overcome the external wind), less potential film breakage (than conventional frame- supported poly greenhouses), more light transmission, less cost, and more portability. | 04-09-2015 |
| 20160097553 | WHOLE BUILDING AIR VENTILATION AND PRESSURE EQUALIZATION SYSTEM AIR MIXER WITH DAMPERS - A whole building ventilation system mixing box that mixes exterior air with air from within the building, having one or more exterior air inputs, on or more interior air inputs with one or more mixed air outputs that re-circulates the mixed air to a whole building HVAC system having one or more ventilation fans. The whole building ventilation system mixing box being open to circulation and mixes the return air from the interior air input with the exterior air whether or not the exhaust fan is on so as to equalize pressure between the interior and exterior of the building. In addition a method of sizing a whole building ventilation system mixer box for mixing exterior air from outside the building with interior air from within a building is provided and includes the steps of determining a value one or more variables related to a building or the air around the building then constructing a whole building mixer box with an at least one damper therein that allows operation without the concomitant operation of an intake fan so as to equalize air pressure within the building to ambient outside pressure, then coupling, adjusting, operating the HVAC device to move air and drawing in cooled or heated air and equalizing the air pressure in the building with the addition of exterior air. | 04-07-2016 |
| 20160178232 | METHOD OF CONTROLLING AIRFLOW THROUGH AN AIR DIFFUSER | 06-23-2016 |
