Abstract: The system is compose of a series of operable louvers mounted on a four sided frame and connected on each side to the operating mechanism that allows for easy opening and closing of the louvers. Every part of the system that is exposing to the exterior of the building is separated from the interior part of the system by a low heat conductivity material as a thermal barrier. Each operable louver is composing of a four sided main frame, two panes of glass (inner and outer) and a coupling mechanism on each side that connects to the operating mechanism. The main frame acts as the thermal break as well as a system that absorbs the energy created when an outside object impacts the window from the outside. The system incorporates sealing devices between all moving parts to eliminate water and air infiltration. The operating system allows for easy opening and closing of the window by rotating each louver with the crank mechanism assisted by springs.

Abstract: An HVAC (heating, ventilating and air conditioning) damper includes a series of pivotal damper blades that are opened by an air pressure differential across opposite sides of the damper. In some embodiments, a fan discharging against the damper blades provides the necessary air pressure to open the damper. To control how far the damper opens, an actuator moves a variable position abutment that obstructs the damper blades to limit how far they can pivot in the open direction. The position of the abutment is infinitely adjustable to provide the damper with infinite adjustment over a range of open positions. In some embodiments, the abutment applies a unidirectional torque to the damper blades regardless of whether the damper is opening or closing.

Abstract: The invention relates to a method and mechanism to control air flow through an air handling system. In one aspect, a flow control device for use in an air handling system is provided. The device includes a flow control member having segmented sliding gates, wherein the flow control member is configured to selectively control an air flow stream by moving the sliding gates into the path of the air flow stream. The device further includes a controller member configured to control the movement of the sliding gates. Furthermore, the device includes a communication member configured to send and receive signals regarding the control of the air flow stream. Additionally, the device includes a power member for supplying power to the flow control member, the controller member and the communication member. In another aspect, a method of controlling an air flow stream in an air handling system is provided.

Abstract: The invention relates to a louvered grille for an air conduction housing, comprising a plurality of louvers which are spaced apart from one another to form air passage openings, wherein the louvers extend in the widthwise direction of the louvered grille and have an upper louver face that is directed to the exterior and inclined transversely with respect to the vertical direction of the louvered grille. For better IP protection of such a louvered grille, according to the invention the upper louver face of at least some of the louvers has a convex curvature in at least some areas of the louvers, both in the widthwise direction of the louvered grill and in the vertical direction of the louvered grille.

Abstract: A vent assembly for attachment to a fluid discharge conduit of the type connected to a clothes dryer, room exhaust fan, or the like is adapted to reduce or prevent the trapping of dirt or lint as well as flapping or vibration of the door in windy conditions. A mount having an opening is received on the conduit and a door is pivotally received by the mount. The door is operable for displacement with respect to the opening between an open position and a closed position when engaged by a fluid, such as air from a clothes dryer, flowing through the discharge conduit. A hood is pivotally mounted over the door and mount opening, and is operable for displacement with respect to the mount when engaged by the door and/or by fluid flowing through the discharge conduit.

Abstract: A projector includes a lamp, a fan for dissipating heat generated by the lamp, a housing, a number of blades received in the housing, and a elongated-slider. The housing receives the lamp and the fan, and includes a top cover, a sidewall connected to the top cover, and a bottom cover connected to the sidewall. The top cover defines an through opening therein. The blades can be rotated in cooperation with the slide of the elongated-slider in the through opening. As described above, the projector can exhaust thermal formed by the lamp or electronic elements from the air outlet. At the same time, the flow direction of the air from the air outlet can be changed in cooperation with the slider. Therefore, when a user sits by the air outlet, the user can adjust the flow direction of the air from the air outlet at any time.

Abstract: A small windmill is provided upstream of a damper in an air duct. When air flows in the duct it rotates the windmill. The windmill shaft is connected by a cable to the damper operator through a transmission means, such that, as the shaft turns, it takes-up the cable an opens the damper.

Abstract: A damper unit for an air circulation system. The damper unit includes a frame defining an air flow opening, a damper vane for opening and closing the air flow opening, and a drive mechanism for turning the damper vane between the open and closed positions. The vane of the damper unit includes a main body and vane turning surfaces that project outwardly from the main body. The vane turning surfaces are configured for converting air flow into torque for assisting the drive mechanism in turning the damper vane between the open and closed positions.

Abstract: A dust and debris disposal system has a floor-mounted housing adapted to be mounted over an opening formed in a floor for receiving debris particles swept thereto, and a set of dust loosening ribs fixed to an projecting forwardly from a posterior portion of the housing. The invention is improved wherein the dust loosening ribs are moveably mounted on the housing. In one embodiment, the dust loosening ribs and a decorative cover are pivotally attached to the housing by means of a hinge. In another embodiment a rib insert is supported by as ledge structure on the housing and may be snap fit relative to the housing.

Abstract: A shutter assembly for an opening adapted to admit light and/or air. The shutter assembly utilizes laterally spaced base members that define a base plane which extends across the opening. The base members may be relatively angularly disposed or parallel. A plurality of parallel, shutter-slats extends between the base members, and each shutter-slat has a longitudinal reference axis, a mounting axis and an input axis. Each mounting axis is disposed in transverse, parallel, spaced relation with respect to the longitudinal reference axis, and the mounting axis of each shutter-slat lies within the base plane. Pivot members secure each shutter-slat to the base members for pivotal movement of each shutter-slat about its mounting axis. The input axis of each shutter-slat is disposed in transversely spaced, parallel relation with respect to the mounting axis.