Abstract: A soffit vent is provided. The soffit vent includes a housing having a front portion and a rear portion forming an interior volume. The housing is configured to be placed against a soffit of a house and provides air communication from an exhaust fan via an air duct to the ambient environment. The front portion includes an air outlet port and the rear portion includes an air inlet port that is attached to the air duct to provide air communication to the ambient environment. The front portion is telescopically received by the rear portion to form an adjustable length that allows a user to extend the adjustable length beyond a far edge of the soffit. In this way, warm, moist air is dispersed away from the soffit by the air outlet port in order to prevent the same air from being drawn back in.

Abstract: A pipe shield of a ventilating apparatus is disposed at an outdoor side relative to a ventilating apparatus body disposed at an indoor side, and includes a pipe shield base and a rear cover. The pipe shield has an air inlet and an air outlet disposed perpendicular to each other. The pipe shield's rear cover has a left side plate, a right side plate and a rear side plate. The distance from the pipe shield base to the rear side plate of the rear cover opposite to the air inlet of the pipe shield increases in a direction towards the air outlet of the pipe shield. A baffle is disposed at the middle portion of the rear cover, and fixed within the pipe shield by a rotating shaft fixed on the left side plate and the right side plate, the rotating shaft has a spring enabling the baffle to unfold.

Abstract: An energy efficient and quiet air cooling system for a building structure is provided. The air cooling system includes an evaporator system mounted in the wall of the building, a remotely mounted fan, an air intake, and a sound and heat insulating duct. The fan is mounted in the attic and configured to draw air from the living area of the building through the sound insulating duct with sufficient power to create a negative static pressure in the living area. The negative static pressure in turn causes outside air to flow through the evaporator system which removes heat from the outside air. The cooled air is in turn drawn into the building and pulled into the attic through the duct and expelled through the attic. The fan expels warm air into the attic, creating a positive pressure environment which causes the warm air to be expelled from the attic through natural vents.

Abstract: The present invention relates to a damper-integrated blower having improved airtightness, which comprises a blower casing a having a suction port and a blower casing b fastened to the casing a from the opposite side; a vane stopper protrusion is formed on bottom surface of the exhaust port, and a vane contact housing part is formed above the exhaust port; damper motor screw fixing parts integrally protrude from the outer upper surface of the vane contact housing part of the blower casing a; a damper motor shaft hole is bored in a damper motor shaft hole protrusion part which is integrally formed on the outer upper side of the vane contact housing part of the blower casing a; a vane rotation shaft protrudes from the inner surface of a damper motor shaft hole protrusion part of the blower casing b facing the damper motor shaft hole protrusion part; an eccentric damper motor shaft of a damper motor is introduced into the damper motor shaft hole so as to connect with the blower casing a; a vane as a single member

Abstract: An extraction fan has a housing mounted in a wall with an outlet duct extending through the wall to an outlet opening outside the wall. A damper flap is mounted on the fan suspended by a hinge at an upper edge so as to extend in a closed position across the opening and is movable to an open position under forward air flow from the fan, and tightly closes against a resilient deformable seal when the fan is shut off. A spring biasing cam applies inwards force to the damper flap to bias the damper flap into the closed position, and an outwards force also to bias the damper flap into the fully open position. The mounting plate includes a hood having a top wall extending over the top of the damper flap and a down-turned front flange extending parallel to the damper flap to a bottom edge.

Abstract: A method for drying or removing water from a wall cavity or structure without the need to tear to make holes, tear apart the structure, or use suction cups. The method uses a reversible portable moisture removal system for flowing pressurized heated air at a targeted location and for creating a vacuum to withdraw moist air from the wall cavity or structure a the moisture removal housing. The method dries wet walls in less time than current systems while also being reversible to remove moist air from wall cavities and structures.

Abstract: A ventilating fan includes a sirocco fan disposed in a box-shaped body and an adapter connected to an air outlet of the sirocco fan. The sirocco fan is composed of two opposite scroll plates with scroll shapes and a casing plate sandwiched between the two scroll plates. An overall air inlet of the sirocco fan is disposed on the first scroll plate and a central line of the air outlet of the adapter is offset towards the second scroll plate. The present invention is advantageous in that no turbulence is generated at the adapter and the wind amount of the ventilating fan is thus ensured and noise is reduced. Therefore, the present invention can provide a small air blowing device with high efficiency and improve stability of performance of the product.

Abstract: The present invention relates to an exhaust structure for a clothes dryer in an apartment building. The exhaust structure includes at least one riser pipe mounted in a vertical direction crossing every floor of a building to discharge exhaust gas, a plurality of branch pipes branched from the riser pipe to a household in the every floor to guide exhaust gas from the household to the riser pipe, and a fan mounted above a top of the riser pipe and operating in proportion to the amount of exhaust gas in the riser pipe.

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: 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 power actuated roof vent apparatus generally comprises an insulated air passageway housing through the roof which allows a linear and unrestricted air flow through the air passageway housing when the apparatus is in operation and an insulated passageway closure lid which positively closes the air flow through, and prohibits water ingress into, the air passageway housing when the apparatus is not in operation.

Abstract: A protective cover device for a wall fan includes a shutter assembly having a first ring plate, a second ring plate with a shape similar to that of the first ring plate, and a plurality of arcuate strips provided between the first and second ring plates. The first and second ring plates define a central opening. Each arcuate strip has a shape corresponding to an arc portion of the first and second ring plates. One end of each arcuate strip is connected to the first ring plate. The other end of each arcuate strip is connected to the second ring plate. The arcuate strips are evenly distributed on the first and second ring plates to form an overlapping arrangement between the first and second ring plates.