Abstract: A top cover for an electronic equipment cabinets where the top cover is made of upper and lower synthetic resin panels which are welded at their edges to form an air chamber therebetween. The upper panel is domed while the lower panel has a corrugated like structure. Access ports are provided which may be sealed shut. Rain directing berms are also provided to direct rain to the corners of the cover and away from access doors to a sealed electronic equipment chamber in the cabinet. A lateral air and water exhaust duct extending the width of the cover is provided as a path for exhaust air from a heat exchanger which normally moves in one direction but under high wind conditions may move in the opposite direction and for allowing the passage of rain water from one side of the cabinet to the opposite side.

Abstract: An exhaust fan for use in bathrooms or similar areas has a generally rectangular fan housing formed from two independent structural members to reduce manufacturing waste and decrease production cost. The fan housing includes a receptacle panel that can be installed and removed from within the housing without additional tools. The fan housing includes two series of spaced view holes formed in its back wall such that during installation of the exhaust fan, the installer can view the ceiling joist to correctly position the fan housing relative to the bottom surface of the joist. The back wall of the fan housing also includes a pair of bend down tabs that can be placed in contact with the bottom surface of the joist to correctly position the bottom edge of the fan housing the required distance from the joist to accommodate the most common drywall thickness.

Abstract: A carbon monoxide ventilation system, comprising a carbon monoxide sensor, a fan, and a vent. The carbon monoxide sensor supplies power to the fan when a threshold level of carbon monoxide is detected. The fan includes a motor and a propeller which draws air into the fan unit, and expels the air through the vent. The sensor also includes an indicating device which produces an audio or visual indication that the threshold level has been reached. The indication continues until reset by a reset button.

Abstract: A kit for reducing the level of radon in a dwelling. Containing a rain-proof exhaust vent hood housing an axial fan, and a suction pipe attached to a length of flex-duct. The kit can be easily installed by most homeowners. The installer simply cuts a hole in the band-board atop the foundation wall of the dwelling, inserts the assembled vent hood and suction pipe in the band-board opening, attaches the proximal end of a length of flex-duct and positions the distal end of the flex-duct into a de-pressurization point in the dwelling. An existing sump pump well or drain tile field can serve as a de-pressurization point.

Abstract: A carbon monoxide ventilation system, comprising a carbon monoxide sensor, a fan, and a vent. The carbon monoxide sensor supplies power to the fan when a threshold level of carbon monoxide is detected. The fan includes a motor and a propeller which draws air into the fan unit, and expels the air through the vent. The sensor also includes an indicating device which produces an audio or visual indication that the threshold level has been reached. The indication continues until reset by a reset button.

Abstract: An exhaust fan for use in bathrooms or similar areas has a generally rectangular fan housing formed from two independent structural members to reduce manufacturing waste and decrease production cost. The fan housing includes a receptacle panel that can be installed and removed from within the housing without additional tools. The fan housing includes two series of spaced view holes formed in its back wall such that during installation of the exhaust fan, the installer can view the ceiling joist to correctly position the fan housing relative to the bottom surface of the joist. The back wall of the fan housing also includes a pair of bend down tabs that can be placed in contact with the bottom surface of the joist to correctly position the bottom edge of the fan housing the required distance from the joist to accommodate the most common drywall thickness.

Abstract: A ventilation fan includes a case-like frame having an opening and a rib in the opening, a motor fastened to the rib inside the case-like frame, a face cover detachably covered on the case-like frame, the face cover having air inlets in communication with the opening of the case-like frame, a centrifugal fan fastened to. the motor shaft of the motor and disposed outside the case-like frame, and a wind box detachably covered on the outside of the case-like frame over the centrifugal fan.

Abstract: A combination attic hatch and return filter grill including a base member having an open upper end, an open lower end, and a surrounding side wall therebetween. A cover member is coupled with respect to the base member. The cover member has a closed upper end, an open lower end, and a surrounding side wall therebetween. The open lower end is hingedly coupled with the open upper end of the base member. The closed upper end has an annular collar secured thereto and extending upwardly therefrom. The annular collar has an open upper end for coupling with the return.

Abstract: An exhaust fan for use in bathrooms or similar areas has a generally rectangular fan housing formed from two independent structural members to reduce manufacturing waste and decrease production cost. The fan housing includes a receptacle panel that can be installed and removed from within the housing without additional tools. The fan housing includes two series of spaced view holes formed in its back wall such that during installation of the exhaust fan, the installer can view the ceiling joist to correctly position the fan housing relative to the bottom surface of the joist. The back wall of the fan housing also includes a pair of bend down tabs that can be placed in contact with the bottom surface of the joist to correctly position the bottom edge of the fan housing the required distance from the joist to accommodate the most common drywall thickness.

Abstract: A power assisted ventilation system for a conservatory of the type having a roof extending away from a wall or other supporting structure that is mountable where the roof meets the wall of other supporting structure has a back plate mountable to the wall or to a glazing panel support means already on the wall and an apertured cover securable to the back plate.

Abstract: An exhaust fan for use in bathrooms or similar areas has a generally rectangular fan housing formed from two independent structural members to reduce manufacturing waste and decrease production cost. The fan housing includes a receptacle panel that can be installed and removed from within the housing without additional tools. The fan housing includes two series of spaced view holes formed in its back wall such that during installation of the exhaust fan, the installer can view the ceiling joist to correctly position the fan housing relative to the bottom surface of the joist. The back wall of the fan housing also includes a pair of bend down tabs that can be placed in contact with the bottom surface of the joist to correctly position the bottom edge of the fan housing the required distance from the joist to accommodate the most common drywall thickness.

Abstract: A light activated exhaust fan including an exhaust fan disposed above a ceiling area within a building. The exhaust fan is disposed within a housing. The housing has openings within side walls thereof. The openings in the side walls have ducts extending outwardly therefrom. Outer ends of the ducts extend outwardly of the ceiling area for communication with rooms therebelow. The housing has an opening through an upper end thereof. The opening through the upper end has an exhaust vent extending upwardly therefrom. An outer end of the exhaust vent extends outwardly of the building. The exhaust fan is in communication with a power source. A pair of activation mechanisms are secured within the rooms. The activation mechanisms are in communication with an activation receiver of the exhaust fan.

Abstract: A powered exhaust fan for ventilating structures, especially well suited for roof ventilation, provides a motor driven fan assembly supported by a support assembly beneath an opening in a roof structure. The fan assembly further includes an air deflector assembly housing an impeller driven by the motor. The air deflector assembly also includes an intake portion and an exhaust portion. The fan assembly is positioned so that rising warm air is drawn into the intake portion by the rotating impeller and is directed into the inner surface of the air deflector assembly, out of the exhaust portion and then out through the roof opening. The positioning of the exhaust fan below the roof minimizes the negative aesthetic impact of the exhaust fan and allows it to be installed with existing passive ventilation systems.

Abstract: A ventilation fan for duct being capable of inserting the ventilation fan smoothly into the opening in the ceiling, and free from strange feel between the design of the decorative plate and pattern of the ceiling.It includes (a) a ventilation fan main body having a blower including a fan installed inside, an intake port formed at the lower side and a scroll having an exhaust port, and a wind tunnel installed at the intake port side of the blower, and having a curved portion rotatable along the brim of an opening formed in the ceiling, (b) an adapter for duct connection detachably fitted to the exhaust port, and (c) a decorative plate which may be installed by covering the lower surface of the wind tunnel.Therefore, as the curved portion of the wind tunnel rotates along the brim of the opening, the ventilation fan main body is fitted to the ceiling, and the decorative plate is fitted to the lower side by covering the wind tunnel. Moreover, the ventilation fan main body is connected to the adapter.

Abstract: A combination bath fan, register box, air conditioning and heating boot requires one opening on the wall or the ceiling of the bathroom, thus reducing the installation and maintenance costs associated with the ventilation of the bathroom. The combination includes a trim kit or assembly which is adapted to be fitted into a rough-in kit or assembly. The rough-in kit or assembly, typically mounted onto a building stud during the early phases of the building construction, has an air outlet which is connected to the outside air and an inlet for receiving conditioned air to be distributed within a confined space. The trim assembly or kit is installed in the rough-in assembly. Louvers are provided around the perimeter of the face plate of the trim assembly to dispense conditioned air from the air inlet to the confined space with the appropriate air gradient. Air flow through the louvers is controlled using one or more slidable dampers mounted above the louvers.

Abstract: A ventilation device having a housing with a grille at the bottom and two ventilation members at two sides of the grille is provided. A fan assembly is mounted on the housing and controlled to draw filthy air out of a room through air vents in the ventilation members. The ventilation device includes a plurality of electronic heating tubes mounted inside the housing and controlled to produce heat. A plurality of sleeves formed of a far infrared emitting material are respectively mounted on the electric heating tubes and heated by the electric heating tubes to emit energy in the far infrared portion of the spectrum. A reflector is provided which reflects far infrared rays into the room through gaps in the grille, and a light source provided for illumination.

Abstract: An exhaust fan for bathrooms and the like having two principal structural elements--a housing assembly and a motor plate assembly--wherein the housing assembly includes a generally cylindrical housing formed of injection molded plastic. The housing assembly includes a circumferential mounting flange and mounting clips carried thereon for mounting the fan in a ceiling panel or the like in an arbitrary angular orientation. Flexible mounting tabs on the motor plate assembly releasably engage notches on the housing for snap together assembly. Integral strain relief for power supply wiring is molded into a wiring compartment in the housing. An oval duct connector having an outer circumferential lip extends from an exhaust outlet and is adapted to releasably engage a round flexibly resilient spring reinforced duct thereover. The motor plate assembly also covers the wiring compartment when fitted into the housing assembly.

Abstract: A ventilation device is composed of an air inlet base, an air guiding box mounted on the air inlet base, and a ventilation fan. The air guiding box is made up of a main body and a motor base mounted on the main body. The ventilation fan is mounted on the shaft of a motor which is in turn mounted on the motor base. The ventilation device is effectively downsized without compromising its ventilation efficiency.

Abstract: A filter ventilator for installation in an opening of a wall of a switchgear cabinet or the like, having a base housing receiving the filter, which is covered with a finned screen and which is connected with a ventilator on a side facing away from the finned screen. For a considerably simplified mounting of the filter ventilator, detent cams are molded on the base housing for fastening the ventilator. The detent cams engage bores in the facing flange of the ventilator. L-shaped holding elements are formed on the base housing which, facing the flange of the ventilator which faces away from the finned screen, have detent cams which engage bores of the flange. The L-shaped holding elements and the base housing form receivers, into which the ventilator, which is placed angularly offset on the base housing, can be rotated to a stop.

Abstract: An apparatus and method for handling and controlling exhaust from a ventilation fan. A header is placed over the exterior end of the exhaust air conduit used to exhaust air by the ventilation fan. The header provides upper and lower air paths for the exhaust, but blocks direct wind from entering the air conduit. The upper and lower air paths terminate in exhaust openings. The exhaust openings are similar is size to one another and are similar in cross-sectional area to the air paths through the header.

Abstract: The ventilating fan system comprises an air flow passage including a duct for guiding the air in a room to outside and a ventilating fan arranged in the air flow passage; whereby said ventilating fan is an inversion type ventilating fan, in which opposed rotating blades arranged in a direction perpendicular to flowing direction of the air are rotated in reverse directions, and the ventilating fan is arranged at an end portion of the air flow passage closer to outside and sucks the air in the room and discharges it to outside.

Abstract: A continuous vent in the form of a resilient apertured trough which fits into a bevel in the center of the soffit or at the fascia or the wall. The advantages of the vent is that its hold is based on its shape, its resilience and the angle of the bevel in the soffit. The vent is used in existing soffits or on new construction. The method involves the steps of venting a soffit by cutting two beveled ends a few inches apart and inserting a resilient apertured vent in the space between the bevels. For new construction, one beveled strip is temporarily adhered via an adhesive to hold the vent in place until the second bevel is completed and both beveled pieces are installed.

Abstract: A forced air vent for allowing the unidirectional outflow of exhaust air from the interior of a structure into the atmosphere by way of an eave opening includes a generally rectangular main body, arranged with a perforate bottom wall and a pair of oppositely disposed side walls and two hingedly connected movable internal baffle plates. An interior space is defined by the bottom wall and the two oppositely disposed side walls. The perforate bottom wall is arranged with a solid central portion and two oppositely-disposed distal portions. A corresponding abutment ledge is disposed between each distal portion and the central portion. Each distal portion includes a grate panel through which air can freely pass. From a closed position, the baffle plates are movable outwardly and upwardly into an opened position in response to positive air pressure from within the attic interior. The bottom wall has a convex surface protruding into the central portion to focus the air flow onto the baffle plates.

Abstract: A blowing apparatus includes a suction passage having a suction chamber enclosed by rigid body surfaces, suction ports opening toward the suction chamber for sucking air from outside, and a fan suction port serving as a suction port for a blower, the suction ports, the suction chamber, and the fan suction port being arranged in nonlinear form. In such blowing apparatus, a doughnut-like straightening guide is arranged on an opening edge on the suction chamber side of the fan suction port. The straightening guide has a projection toward the suction chamber, an appropriate thickness in the radial direction, and a guide passage matching the fan suction port in the middle thereof.

Abstract: A method of installing a ventilation device through existing plywood door closures of accesses to attic spaces with roof fans in homes includes a frame with louvers across a central opening closed by two doors hingeably attached to be opened and closed with a hook rod interconnecting with eye bolts on the doors, the entire device being insulated to reduce heat loss during the cooler seasons.

Abstract: A ventilator has incorporated in a main body thereof an air blower having a ventilation casing provided with a fan intake opening facing an intake opening of the main body of the ventilator, the inner side of the main body being opened to form the intake opening thereof. A cylindrical soundproof unit including an inner ventilation passage having a larger ventilation area than a fan intake space and formed of a laminated plate which is formed of a plurality of air layers arranged in a direction intersecting the rotation axis of the air blower from the inner ventilation passage, is disposed in a space between the fan intake opening and the intake opening of the main body. The soundproof unit makes it possible to decrease noise generated by the air blower while the ventilation resistance is hardly increased.

Abstract: A new and improved wide area air removal apparatus includes at least one air duct that traverses a portion of the wide area and includes a plurality of apertures arrayed along the length of the air duct. An electric fan assembly is connected to the plural-aperture-including air duct for creating a vacuum in the plural-aperture-including air duct and for moving air from the wide area through the apertures and through the air duct to outside the air duct. The air that is removed from the wide area can be filtered and returned to the wide area; or it can be moved outside the wide area. The air that is removed from the wide area can be laden with smoke or other odor-bearing substances. The wide area can be a room in a building. The plural-aperture-including air duct may include a plurality of air duct branches. In addition, ash tray collars may be provided for placement circumferentially around ash trays. The ash tray collars include apertures for drawing in air adjacent to the ash trays.

Abstract: In a lighting-fitting comprising a socket-structure for an electrical lamp and a filter device to remove smoke components of cigars and cigarettes, which device is provided with an electrical blower (6) and at least one smoke filter (3,4), the socket-structure is housed within a first hood (1), which is placed within a larger second hood (2), such that a space between the first hood and second hood forming a smoke channel (7, 7') extending to the filter device is defined. Furthermore, the socket-structure is designed for at least one TL-tube, while the smoke filters (3,4) are located within the second hood (2) over the top of the first hood (1), and the first hood (1) can easily be assembled and disassembled relative to the second hood (2). In a preferred embodiment, the space between the first hood (1) and the second hood (2) defines an exhaust channel (12) extending from the filter device, to exhaust filtered air.

Abstract: A vent hood mountable on the soffit of a building for exhausting a room ventilating system to atmosphere and a building having a room ventilating system connected to such soffit mounted vent. The ventilating system is a conventional power driven forced air unit with an air inlet communicating with the room to be ventilated and an exhaust outlet. The exhaust outlet is connected to the soffit mounted vent hood by a flexible conduit. The vent hood has a pivotally mounted flap valve normally closed and remains closed, when not in use, by the force of gravity. The flap valve is upstream from the discharge opening from the vent hood and preferably slopes, when in a closed position, relative to the vertical when the vent hood is mounted in situ.

Abstract: A self-contained cleaning system for smoke exhausters comprising a bowl-shaped housing partially filled with cleaning fluid, and a sprayer tube rotatably secured in a central position within the housing having an upper portion and a lower portion. A plurality of upwardly aligned spout tubes are radially disposed on the upper portion of the sprayer tube, with the lower end of the sprayer tube having a beveled entrance and crescent-shaped apertures formed in proximity thereto. The housing can be mounted under a fan opening of the smole exhauster by engaging securing appendages therein with a wire grid grill covering the fan opening, and the upper end of the sprayer tube coupled to the hub of the fan by a coupling provided thereon.

Abstract: A solar powered exhaust fan having a pipe adaptor for connection to the interior of portable buildings. The exhaust fan may be either DC or AC energized. Automatic and manual switches are provided.

Abstract: The invention relates to an air extraction apparatus for conditioning air in an enclosed space wherein the air in said enclosed space is stratified due to a temperature gradient between a ceiling and floor of the enclosed space. The apparatus includes a conduit having an inlet end and an outlet end, the conduit adapted to be arranged and installed with its outlet end in communication with an opening in a wall of the enclosure and its inlet end in proximity to the floor when in use. A fan means is located in the conduit to effect movement of air from the floor level of the enclosure through the inlet end to and outwardly of the outlet end. A control means is attached to the conduit and is associated with the fan means to selectively connect the fan means to a source of power, the control means being responsive to a selected condition e.g. relative humidity of the air in the enclosure.