Abstract: An air distribution assembly for a recreational vehicle may include a frame mounted within an opening of the recreational vehicle and a baffle positioned therein to sealing divide an air handling chamber into an air supply side and an air return side. The baffle may include mounting flanges for rigidly connecting the baffle to the inside surface of the frame.

Abstract: An entertainment system includes a cylinder within a body of liquid, an entertainment platform within the cylinder, and a pump system. The entertainment platform is configured to move within the cylinder. The pump system is configured to remove fluid from and provide fluid to an interior of the cylinder on a first side of the entertainment platform to move the entertainment platform within the cylinder.

Abstract: An adaptor for a passive roof vent is presented having a base securable to a roof deck and an integrally moulded stepped collar extending from the base on one side for connecting to different air duct sizes which defines a discharge end for an air flow passageway. A central well is defined by the collar adjacent to and below the base and is open towards the other side of the base and has a hinge pin for at least one flapper valve retained in the well below the base. At least one flapper valve, hinged to the hinge pin, pivots about a closed position to which the flapper valve is biased by gravity and an open position in which the flapper valve is opened by air pressure from below within the air flow passageway. The flapper valve remains partially within the well when the flapper valve is open.

Abstract: A refrigerated display case includes an air director that directs air with less turbulence in a resultant air curtain but also allows for the convenient removal of an air filter member by using a flexible hinge on a portion of the air deflector. Other embodiments are disclosed as well.

Abstract: An air intake system for a work vehicle may generally include an intake duct defining a passageway for directing air in a flow direction through the system. The duct may also include a pre-cleaner slot defined between inner and outer surfaces of the duct and a support ledge extending circumferentially around at least a portion of an inner perimeter of the duct. The system may also include a pre-cleaner configured to be installed within the intake duct by inserting the pre-cleaner through the pre-cleaner slot in a direction extending generally perpendicular to the flow direction. In addition, the air intake system may include a cover configured to be coupled to the intake duct such that the cover extends over the pre-cleaner slot when the pre-cleaner is installed within the intake duct.

Abstract: A blower apparatus includes a blower casing; an elastic member for mounting a mounting portion that projects on an outer circumferential portion of the blower casing, to a blower support member disposed on the inlet side of the mounting portion; and a flange portion provided on the inlet side of the mounting portion. At least three elastic members are disposed in the same plane that is almost orthogonal to a rotation shaft, and adhesion surfaces are provided on both ends, in the rotation shaft direction, of each elastic member. The mounting portion is fixed to one of the adhesion surfaces, and the blower support member is fixed to the other of the adhesion surfaces. The flange portion is provided so as to oppose the blower support member through a gap having a thickness less than a thickness, in the rotation shaft direction, of the elastic member.

Abstract: Embodiments of the invention provide a ventilation assembly comprising a main housing adapted for installation into standard 2?×4? wall or ceiling construction within a building or space. The main housing can include a fluid inlet through which fluid is received within the main housing, and a fluid outlet through which fluid exits the main housing. The ventilation assembly can be installed in place of an existing ventilation exhaust fan assembly, or can be installed in a space where no ventilation assembly has previously existed. The main housing can provide support to a blower assembly, including a scroll and a blower wheel positioned within the scroll. A motor may be nestled within the scroll and coupled to the blower wheel. Electrical power can be supplied to the motor to cause the motor to rotate the blower wheel to generate a flow of fluid out of the fluid outlet.

Abstract: A columnar air moving device can comprise separately formed modular stator vanes in a stator vane assembly. The stator vanes can be arranged in a radial pattern, and can direct air in an axial direction. The modular stator vanes, as well as other components of the stator vane assembly, can be replaced, adjusted, and/or removed from the columnar air moving device.

Abstract: The invention is a damper that closes off supply duct air when the unit is off to prevent air from exiting through the outlet, and opens when the unit is on to allow room air and/or supply duct air to exit through an outlet. The damper may be either motorized or mechanically biased.

Abstract: A system for maintaining thermal separation between first and second adjacent rooms or spaces. The system includes a vestibule with at least a first compartment, and other embodiments may include two or more compartments, such that the vestibule provides a passageway between the first and second rooms. At least one blower draws air from the first room through an air intake, and back into the first room through an exhaust. The system further includes an exhaust port from the first compartment in fluid communication with the exhaust, to exhaust air from the first compartment into the first room. During operation, a vacuum is formed within the first compartment that provides thermal separation between the first and second adjacent rooms.

Abstract: The fan synchronizer is a small flow tube 5, 2? IPS or smaller, connected between the supply fan 13 duct and return and/or exhaust fan 16 duct that allows flow through the tube 5 to issue a signal from an in line flow meter device 2 that will control the supply fan 13 and return/exhaust fan 16 to be synchronized to hold a set flow difference throughout the system flow range without series flow instability. The purpose is to maintain, in a variable flow system, a positive or negative building or room pressure difference to atmosphere, avoiding series flow instability of the fans.

Abstract: An air circulator for amplifying and manipulating high volumes of low velocity air in order to circulate and regulate indoor air temperature within a commercial or an industrial environment. The air circulator includes a housing and a support member. The housing has an airflow passageway with a bottom end defining an air intake and a top end defining an air outlet. The air circulator further includes a fan positioned within the airflow passageway of the housing substantially adjacent to the top end of the housing. The support member supports the housing so as to dispose the air intake above the ground. The fan and the air outlet are configured to discharge air having a significant vertical component and a significant lateral component.

Abstract: An improved system and method for monitoring contamination loading of a filter in a biological safety cabinet comprising a housing defining a work chamber and a filtration chamber, a system for circulating air between the work chamber and the filtration chamber via a fan which draws air under negative pressure from the work chamber and delivers the air under positive pressure through the filter and into the filtration chamber. The filter monitoring system determines a pressure differential between the negative and positive air pressure at opposite sides of the fan, and evaluates the degree of contamination loading of the filter on the basis of the pressure differential. An air flow baffle is disposed within the filtration chamber adjacent the fan for dividing the pressurized air delivered by the fan and partially redirecting a portion thereof for more uniformly delivering the air to the filter.

Abstract: Highly efficient solar fans used in portable and built in configurations. A ventilation fan can be used for exhausting air out from underneath roofs, and/or for being portable in use and application. The fan can include optimized airflow blades having a twisted configuration that can move at a rotational speed operation of up to approximately 500 rpm. The approximately 15 inch diameter twisted blades can be premolded on a hub that together form a single molded unit of plastic. They can also be fabricated using metal. The unit can be mounted in an exhaust outlet having a conical diffuser on or adjacent to a roof. Another embodiment allows for portable solar powered fans used anywhere there is a need for ventilation and moving of air. The blades can rotate by a solar powered motor, where the blades and motor can generate up to approximately 1040 cfm while using no more than approximately 16 Watts. Portable fans can be powered by solar panels. One embodiment has solar panels mounted to a handtruck.

Abstract: A device for cooling a pet includes a fan with a housing. A motor coupled with a blade positioned in the housing. The motor is electrically coupled with a power source to energize the motor to rotate the blade. At least one member is coupled with the housing. The at least one member includes a cut-out to couple the member with an animal crate to mount the fan on the crate for cooling a pet inside of the crate.

Abstract: An equipment cabinet (1) has a first compartment (3), a second compartment (5), and a ventilation system. The first compartment (3) may be an inner or electronic compartment and the second compartment (5) may be an outer or battery compartment. The ventilation system has at least one operating configuration which enables air to flow from outside the second compartment to the first compartment then to the second compartment, and which enables little or no air to flow from the second compartment to the first compartment. The ventilation system has another operating configuration in which little or no air can flow from outside the second compartment to the first compartment, little or no air can flow from the second compartment to the first compartment, and air is able to substantially recirculate through or in the first compartment.

Abstract: Modular data center containers with modular components suitable for use with rack or shelf mount computing systems currently use cooling methods that do not include economizers due to size constraints of structural steel support infrastructure associated with modular data centers and removable economizers to facilitate portability of modular data centers. The modules allows introduction of outside air to the cooling cycle with the unique elements embodied within airside economizer components. The modules in conjunction with the data center represents a new and useful process to allow the economizer elements to bring outside air into the modular data center cooling cycle.

Abstract: A motor mount assembly for an air cleaner is provided according to an embodiment of the invention. The motor mount assembly includes a motor ring adapted for receiving a motor, a mount ring adapted to be received in the air cleaner, and a plurality of mounting vanes extending between the motor ring and the mount ring. A mounting vane of the plurality of mounting vanes includes a proximal end and a distal end. The distal end is affixed to the motor ring and the proximal end is affixed to the mount ring.

Abstract: Highly efficient ventilation fans for exhausting air out from underneath roofs, and for being portable in use and application. The fan can include optimized airflow blades having a twisted configuration that can move at a rotational speed operation of up to approximately 500 rpm. The approximately 15 inch diameter twisted blades can be premolded on a hub that together form a single molded unit of plastic. They can also be fabricated using metal. The unit can be mounted in an exhaust outlet having a conical diffuser on or adjacent to a roof. Alternatively, the fan can be portable for use most anywhere there is a need for ventilation and moving of air. The blades can rotate by a solar powered motor, where the blades and motor can generate up to approximately 1040 cfm while using no more than approximately 16 Watts.

Abstract: A candle holder apparatus for housing a candle and a method for using such a device, the candle holder apparatus comprising a body having an open top, at least one body wall, and a cavity configured to house a candle. The candle holder further comprises a heat deflecting shield and a cover having a recess configured to house the heat deflecting shield. The heat deflecting shield is seated in the cover recess such that an air gap is formed between the heat deflecting shield and an inner surface of the cover. This air gap insulates and decreases the top surface temperatures of the cover, allowing a user to touch the cover without being burned. Further, the candle holder cover is configured to fit on the open top of the candle holder body. Vent openings are disposed in the wall of the candle holder body to permit airflow between the cavity and the exterior when the cover is atop the body.

Abstract: The present invention provides a compact ventilation system provided with an air purifying function. The present invention includes a case having at least one inlet and outlet communicating with an indoor space, an air supply duct connected to the case to allow the case to communicate with an outdoor environment, a fan provided within the case, the fan sucking air introduced into the case via the air supply duct, the fan blowing out the sucked air to the at least one outlet, an air guide provided within the case to guide the air introduced into the case to the fan and to guide the air blown from the fan to the at least one outlet, and an air purifying member situated next to a lateral side of the fan between the fan and the at least one outlet to purify the air blown from the fan.

Abstract: A method of constant airflow control for a ventilation system is disclosed. The method includes various controls to accomplish a substantially constant airflow rate over a significant change of the static pressure in a ventilation duct. One control is a constant I·RPM control, which is primarily used in a low static pressure range. Another control is a constant RPM control, which is primarily used in a high static pressure range. These controls requires neither a static pressure sensor nor an airflow rate sensor to accomplish substantially constant airflow rate while static pressure changes. This is because these controls use only intrinsic control variables which are electric current and rotational speed of the motor. Also, the method improves the accuracy of the control by correcting certain deviations that are caused by the motor's current-RPM characteristics. To compensate the deviation, the method adopts a test operation in a minimum static pressure condition.

Abstract: A semiconductor manufacturing process facility requiring use therein of air exhaust for its operation, such facility including clean room and gray room components, with the clean room having at least one semiconductor manufacturing tool therein, and wherein air exhaust is flowed through a region of the clean room. The facility includes an air exhaust treatment apparatus arranged to (i) receive air exhaust after flow thereof through said region of said clean room, (ii) produce a treated air exhaust, and (iii) recirculate the treated air exhaust to an ambient air environment in the facility, e.g., to the gray room of the facility.

Abstract: The invention is a damper that closes off supply duct air when the unit is off to prevent air from exiting through the outlet, and opens when the unit is on to allow room air and/or supply duct air to exit through an outlet. The damper may be either motorized or mechanically biased.

Abstract: An example presentation apparatus having a cabinet-like base and a surface coupled to the cabinet-like base and configured to hold an object. The cabinet-like base and the surface are configured to cooperate functionally with a function of the object. A portion of an air processing apparatus is disposed within the cabinet-like base and configured to move ambient air through the cabinet-like base to generate processed air. An exhaust structure is operatively coupled to the cabinet-like base and configured to enable the processed air to exit the presentation apparatus via a flow path that is spatially associated with a substantially predetermined position of the object.

Abstract: The solar powered fan for a portable enclosure includes an electrical fan, which is pivotally mounted within the interior region of a portable edifice, such as that associated with a portable toilet facility. The pivotal mounting of the fan allows for selective user adjustment of the angular position of the fan with respect to the roof of the housing. Mounted on the roof, exterior to the enclosure, is a hollow housing having at least one solar panel mounted to an upper surface thereof. The solar panel charges a rechargeable battery received within the hollow housing which, in turn, is in electrical communication with the electrical fan.

Abstract: A conduit for delivering warm air to the body with a multiplicity of warm air delivery holes arrayed along extensive tubing down extending over the arms and legs of the wearer. The warm air is derived from the user's expired air as one exhales into a coupler that fits the mouth of a human or coupled to an over the nose and mouth facemask. The exhaled air travels through the mouthpiece or mask and into the tubing to be delivered to the extremities through air dispersion holes arrayed along and around the tubing.

Abstract: Air moving device includes a housing, an impeller in the housing for generating a downward air flow, and vanes in the housing in close proximity to and a selected distance below the impeller to straighten the air flow. The device produces an air flow that substantially remains in a column over a substantial distance. The method includes producing an air flow that substantially remains in a column over a substantial distance and directing the air flow from the ceiling towards the floor to provide temperature destratification of the air in an enclosed space. The method also includes directing warm air from the ceiling to the floor and storing heat in the floor, apparatus on the floor and ground under the floor. The stored heat is released when the ceiling is cooler than the floor.

Abstract: Air moving device includes a housing, an impeller in the housing for generating a downward air flow, and vanes in the housing in close proximity to and a selected distance below the impeller to straighten the air flow. The device produces an air flow that substantially remains in a column over a substantial distance. The method includes producing an air flow that substantially remains in a column over a substantial distance and directing the air flow from the ceiling towards the floor to provide temperature destratification of the air in an enclosed space. The method also includes directing warm air from the ceiling to the floor and storing heat in the floor, apparatus on the floor and ground under the floor. The stored heat is released when the ceiling is cooler than the floor.

Abstract: A crawlspace encapsulation system for encapsulating a crawlspace of a building. The system includes a substantially impermeable barrier layer disposed in the crawlspace and isolating at least a portion of the crawlspace from an outside atmosphere and an air circulation system located in the isolated portion.

Abstract: 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 making the room, an inside of the case, and the outdoor in communication, and a damper in the case for isolating the first flow passage from the second flow passage so that room air is discharged to the outdoor and the room air is guided to the blower, or making the first flow passage and the second flow passage in communication so that the room air introduced into the second flow passage is guided to the blower, thereby ventilating and purifying the room air.

Abstract: A mine refuge for use in a mine includes a chamber sized and shaped for occupancy by at least one miner and adapted to be substantially sealed. An oxygen supply is installed in the chamber for supplying oxygen to the chamber. A breathable air supply is installed in the chamber for supplying a steady flow of breathable air and for positively pressurizing the chamber to inhibit entry of contaminated mine air into the chamber.

Abstract: A suspension type oscillation mechanism including a frame set having an upper frame with a frame hole, a casing secured to the frame set, a crank set, an axial barrel and a fastening rod. The crank set has cranks rotationally joining to each other and an end of the initial one of the cranks is connected to an output shaft of a motor eccentrically. The axial barrel is inserted into the frame hole and the casing hole. A bearing seat having an inner bearing pressed by an end of the axial barrel. The fastening rod set has a screw rod passing through a suspended article and the axial barrel. An upper end of the screw rod is connected to the crank set and the lower end is connected to the suspended article by a rod seat and a collar located on a top of the suspended article.

Abstract: A portable smoking room having a flexible enclosure defining a room detachably mounted on a frame is provided. A duct is detachably mounted to the frame for transporting smoke laden air within the flexible enclosure outside of the flexible enclosure. A fan detachably mounted to the duct creates negative pressure within the flexible enclosure such that smoke laden air within said flexible enclosure may be drawn out though the duct and ambient air from outside may be drawn in through a plurality of air intake apertures in the flexible enclosure. The frame of the portable smoking room may be disassembled when the enclosure and the duct are detached from the frame such that the flexible enclosure, the frame, the fan, and the duct may be transported and reassembled at another location.

Abstract: A semiconductor manufacturing process facility requiring use therein of air exhaust for its operation, such facility including clean room and gray room components, with the clean room having at least one semiconductor manufacturing tool therein, and wherein air exhaust is flowed through a region of the clean room. The facility includes an air exhaust treatment apparatus arranged to (i) receive air exhaust after flow thereof through said region of said clean room, (ii) produce a treated air exhaust, and (iii) recirculate the treated air exhaust to an ambient air environment in the facility, e.g., to the gray room of the facility.

Abstract: An air handling system for a specialized environment, such as an operating room in a hospital or other health care facility is presented. The air handling system includes an air recirculation system having a blower for drawing air from the specialized environment for recirculation; a recirculation diffuser operatively connected to the specialized environment for recirculating air back to the specialized environment by action of the blower; and recirculation ductwork providing a pathway for air traveling from the blower to the recirculation diffuser.

Abstract: A system to significantly improve the air quality in a personal breathing environment. The system includes a blower unit that produces a conditioned air flow, a delivery system that delivers air provided by the blower unit to a person's breathing zone, and a conduit that interconnects the blower unit and the delivery system for directing conditioned air from the blower unit to the delivery system. The delivery system is positioned so that it sends conditioned air around an individual's head and into the individual's personal breathing zone, thereby creating a zone of conditioned air around the individual's head.

Abstract: An air flow producer of non-rectangular shape is adapted for installation in a rectangular opening of a drop ceiling. In preferred form, the producer has a circular housing with an open bottom covered with a grill. A fan with a rotary blade assembly is mounted in the housing to produce a downward air flow, and a circular metal band surrounding the rotary blade assembly defines an air discharge zone centered in the grill and an annular air intake zone surrounding the discharge zone. Flow rates are optimized by positioning the band close to the grill. The grill is preferably integrally molded with a rectangular flange that seats in the drop ceiling opening. The flange supports the housing from the framework and closes the opening to prevent the producer from drawing air from the plenum above the drop ceiling.

Abstract: An air flow producer mounted at the ceiling of a room generates an air flow toward the floor, reducing temperature gradients and improving heating and cooling efficiency. A housing defines a circular cylindrical, vertical flow passage that receives the air flow. A discharge chamber discharges the air flow through a grill toward the floor. The discharge chamber has a cross-section that expands progressively from the outlet of the flow passage to the outlet of the discharge chamber. The air flow through the housing is produced by a fan with a rotary blade assembly, and the blade assembly extends partially into the discharge chamber. The position of the blade assembly and the expanding cross-section of the discharge chamber cooperate to increase air flows through the housing. Optionally, an air intake chamber of generally inverted frustoconical shape may be mounted at the upper inlet end of the cylindrical flow passage to smooth flows further.

Abstract: The invention provides an NBC protection and decontamination system, having a space delimited by an enclosure, the enclosure having a clean air inlet port and an air outlet, a decontamination unit attachable to the outside of the enclosure, the decontamination unit having a plenum and a chamber separated from the plenum by an air flow laminator. The system also includes at least one air inlet valve communicating with the air outlet of the enclosure and leading to the plenum and to at least one air exhaust valve made in the chamber, spaced apart from the air inlet valve. An opening is provided for controlled passage between the enclosure and the decontamination unit, and also an opening in the decontamination unit, for controlling the passage between the unit and the outside. There is also provided an NBC protection and contamination method.

Abstract: Based on a hollow column (1), terminating at the bottom in a baseplate (2) and at the top in a core (3) from which vanes (4-4?), also hollow and connected with the column (1), emerge; a motor-fan (6-7) is installed in the baseplate (2), activated by means of a circuit breaker (8), which absorbs air from the outside through the lower and open end of the baseplate (2), and delivers it to the vanes (4-4?) from which it passes to the outside through opposite nozzles (5), so that this flow of air causes a rotary movement of the vanes (4-4?), by reaction, and said vanes, in their rotation, form a curtain against solar radiation, while simultaneously moving air below them. The wall of the column (1) can be translucent to allow the light generated by an internal spotlight to pass through it and within said column an electrical resistance or other means of heating that allows the ventilator to provide hot air, can be installed; the external surface of said column forming furthermore an advertising panel.

Abstract: Improvements are provided to enable an air-curtain portal to be used for the triage and decontamination of persons who may have been exposed to toxic gas vapour or particulate material.

Abstract: An air handling system for a specialized environment, such as an operating room in a hospital or other health care facility is presented. The air handling system includes an air recirculation system having a blower for drawing air from the specialized environment for recirculation; a recirculation diffuser operatively connected to the specialized environment for recirculating air back to the specialized environment by action of the blower; and recirculation ductwork providing a pathway for air traveling from the blower to the recirculation diffuser.

Abstract: An installation for processing wafers that includes fabrication units, which are located in a clean room, and includes a supply system for supplying and discharging operating substances for the fabrication units. The supply system has first supply lines and first discharge lines, in which operating substances that are heavier than the surrounding atmosphere are downwardly guided. The supply system has second supply lines and second discharge lines, in which the lighter operating substances are upwardly guided.

Abstract: The present invention generally relates to mail processing and environment control. Systems for controlling a mail-processing environment to protect against contaminants may comprise a first air vent for supplying air to the mail-processing environment, a second air vent for exhausting air from the mail-processing environment, an air exchanger coupled to the first air vent and the second air vent for exchanging air in the environment, a first damper for substantially blocking air supplied to the environment through the first air vent, a second damper for substantially blocking air exhausted from the environment through the second air vent, and a control circuit for controlling the first damper and the second damper in response to a possible presence of contaminants in the mail-processing environment.

Abstract: A wall curb 10 for attachment to the exterior wall 32 of a building to removably secure a wall mounted HVAC unit 38 to the exterior surface 44 of the wall 32. The wall curb 10 serves to attach the supply air duct 34 from within the building to the supply air opening of HVAC unit 38 and to attach the return air duct 36 from within the building to a return air opening of the HVAC 38. An alternate embodiment of the invention 10A includes an outside air opening 60 with a controllable damper 62 for regulating the ratio of outside air verses return air from the building that enters the HVAC unit 38.

Abstract: A walk-through portal or other enclosure is provided for at least one of detection of a predetermined substance on a subject and decontamination of a subject from a predetermined substance, the subject being either a person or, for other type of enclosure, an object, such as a suitcase. The walk-through portal defines an examination zone and can be substantially open on at least one side, to permit a subject readily to enter and to exit the examination zone. A closure closes off the examination zone from the exterior. An inlet into the examination zone and an outlet from the examination zone permit air or other gas to flow through it, and this is pumped by a pump, so as to entrain at least one of vapors and particulates from such substance. At least part of the exhaust through the outlet can be passed to an analyzer, such as an IMS, to detect substances of interest.

Abstract: A method for ventilating an internal space by rotating air flow comprises a step of blowing out a jet of internal air having a vertically long rectangular cross section and uniform blowout velocity distribution over the cross section horizontally along the side wall of the internal space. The jet of internal air generates a horizontal rotating air flow over the whole internal space to induce a horizontally circulating air flow and a vertically circulating air flow over the whole internal space.

Abstract: A blower module for use with a commercial air-purifying system. The blower module includes a housing, a blower unit and a chute. The housing defines an inlet region and an outlet region. The inlet region forms an intake port. The outlet region forms a supply port and an exhaust port. The blower unit is maintained within the housing, such that operation of the blower generates an airflow within the housing from the inlet region to the outlet region. Finally, the chute is mounted within the outlet region adjacent the exhaust port and is configured to direct a portion of the airflow to the exhaust port. With this configuration, an overall size of the blower module housing is greatly reduced.

Abstract: A self-contained activity module comprises a base assembly, a first service housing and distribution unit positioned on the base comprising walls forming at least one service passage, and a second service housing and distribution unit positioned on the first unit and substantially perpendicular thereto, the second unit spaced upwardly apart from and extending over at least a portion of the base, the second unit further comprising walls forming at least a second service housing and distribution passage positioned in fluid communication with the first service passage.