An electric blinds roof structure provided in this invention includes a top frame, and at least a group of blinds is installed at the top frame. Each group of blinds includes a plurality of slats, a linkage strip, and an electric control mechanism, each slat is rotatably installed at the top frame, and each slat is directly hinged to the linkage strip or hinged to the linkage strip through a fixing member fixed at the slat. The electric control mechanism is used to drive at least one linkage strip to move thus to control opening and closing of the slats. This invention can drive the linkage strip to move through the electric control mechanism, thereby controlling the opening and closing of slats corresponding to blinds, and operation is convenient and reliable compared to the operation mode of rolling a rolling rod in the prior art.

An electric blinds roof structure provided in this invention includes a top frame, and at least a group of blinds is installed at the top frame. Each group of blinds includes a plurality of slats, a linkage strip, and an electric control mechanism, each slat is rotatably installed at the top frame, and each slat is directly hinged to the linkage strip or hinged to the linkage strip through a fixing member fixed at the slat. The electric control mechanism is used to drive at least one linkage strip to move thus to control opening and closing of the slats. This invention can drive the linkage strip to move through the electric control mechanism, thereby controlling the opening and closing of slats corresponding to blinds, and operation is convenient and reliable compared to the operation mode of rolling a rolling rod in the prior art.

A multi-function wind-directing rainwater-sealing automatic-multi-screen-raising-and-lowering multi-screen-securing fruit-drying-and-sorting truck-tonneau-covering rainwater-channeling-and-collecting leaf-filtering height-and-angle-adjustable louvered pergola comprises: opposing end caps, wind-directing-and-rainwater-sealing-louver-blade multi-screen-securing leading and trailing edges, and rainwater-and-wind-sealing rattle-preventing insulation strips, attached and/or molded to wind-directing-and-rainwater-sealing multi-screen-securing louver blades, which automatically raise and lower sun shade and video projection screens, control the duration of fruit-drying, provide fruit sorting function, and provide a full-content-viewing truck-bed tonneau cover, insertion axels are inserted into stanchions, cradle axels being inserted between cradle caps and rotation cradles, stanchions and rotation cradles screwed to first and second rainwater-channeling-and-leaf-filtering side gutter beams, with rainwater-channeling-and-leaf-filtering end gutter beams fit into gutter-beam cradles and are clamped to corner posts by gutter-beam-securing bars into securing-bar slots, corner posts are capped and protected by corner-post l-shaped caps, multi-louver-control bar rotatably connects to multi-louver-control axels and multi-louver-control linkage arm connected to transmission upper axel connected to worm-gear transmission connected to transmission lower axel connected to coupling loop, controlled by removable-collapsible-and-stowable automatic-multi-screen-raising-and-lowering multi-louver-control crank tool, discrete rainwater gutters filter rainwater and leaves through drain holes and are molded to first and second rainwater-channeling-and-leaf-filtering side gutter beams, within the corner posts, the discrete-leaf-filtering tubes, and spouts, rainwater-draining spout holes, base-plate covers secure to corner-post base plates, which are screwed to corner posts, height-and-angle-adjustable tube screws compensate for uneven terrain and are screwed into corner-post base plates, anchoring screws are inserted through anchoring-screw holes.

A multi-function wind-directing rainwater-sealing automatic-multi-screen-raising-and-lowering multi-screen-securing fruit-drying-and-sorting truck-tonneau-covering rainwater-channeling-and-collecting leaf-filtering height-and-angle-adjustable louvered pergola comprises: opposing end caps, wind-directing-and-rainwater-sealing-louver-blade multi-screen-securing leading and trailing edges, and rainwater-and-wind-sealing rattle-preventing insulation strips, attached and/or molded to wind-directing-and-rainwater-sealing multi-screen-securing louver blades, which automatically raise and lower sun shade and video projection screens, control the duration of fruit-drying, provide fruit sorting function, and provide a full-content-viewing truck-bed tonneau cover, insertion axels are inserted into stanchions, cradle axels being inserted between cradle caps and rotation cradles, stanchions and rotation cradles screwed to first and second rainwater-channeling-and-leaf-filtering side gutter beams, with rainwater-channeling-and-leaf-filtering end gutter beams fit into gutter-beam cradles and are clamped to corner posts by gutter-beam-securing bars into securing-bar slots, corner posts are capped and protected by corner-post l-shaped caps, multi-louver-control bar rotatably connects to multi-louver-control axels and multi-louver-control linkage arm connected to transmission upper axel connected to worm-gear transmission connected to transmission lower axel connected to coupling loop, controlled by removable-collapsible-and-stowable automatic-multi-screen-raising-and-lowering multi-louver-control crank tool, discrete rainwater gutters filter rainwater and leaves through drain holes and are molded to first and second rainwater-channeling-and-leaf-filtering side gutter beams, within the corner posts, the discrete-leaf-filtering tubes, and spouts, rainwater-draining spout holes, base-plate covers secure to corner-post base plates, which are screwed to corner posts, height-and-angle-adjustable tube screws compensate for uneven terrain and are screwed into corner-post base plates, anchoring screws are inserted through anchoring-screw holes.

A solar powered smart window includes a light diffuser configured to convert an incident direct solar radiation to a diffusive light toward interior direction, a light diffuser positioner, a driving mechanism, a solar panel, and a control unit. The control unit moved the light diffuser from a predetermined opened position to a closed position and to hold the light diffuser at the closed position with latch mechanism, when the output power of the solar panel exceeds a threshold for over a duration time. The controller releases the latch mechanism and to cause the light diffuser to return to the predetermined opened position when the output power lowers below threshold for over the duration time. A method includes storing a predetermined condition, monitoring the output power, comparing the output power with the predetermined conditions, making decision whether a positional transition is necessary, and causing the transitional transition or maintaining current position.

A backdraft damper for permitting a flow of air in an outflow direction and preventing the flow of air in a backdraft direction, including a frame having a transverse opening allowing the passage of air through the frame; a plurality of blades, each blade extending across the frame and mounted to the frame about a central portion by pivot members, for rotation between an open position in which the blade allows air to flow through the frame and a closed position in which the blade blocks air from flowing through the frame, the plurality of blades including one or more first blades arranged to rotate in a first direction from the closed position to the open position; one or more second blades arranged to rotate in a second direction opposite to the first direction from the closed position to the open position; the backdraft damper further including a linkage between the one or more first blades and the one or more second blades to cause the first and second blades to together rotate between the closed and open positions; and the one or more second blades being more balanced about respective pivot members than the one or more first blades thereby to permit the one or more first blades to bias the entire plurality of blades to the closed position while being movable to the open position by the force of air flowing through the frame in the outflow direction.

Louvered roof systems are provided with one or more louvers. Such louvers can be combined in an assembly that is movable between an open condition and a closed condition. In the closed condition, louvers in the assembly engage one another. In such engagement, a leg extending generally transversely from one louver may include a wing that extends generally transversely to the leg and that abuts a surface of an adjacent louver. Additionally or alternatively, in such engagement, a leg extending transversely from one louver may be received in a notch in an adjacent louver. An end cap can include a downwardly extending flange that directs liquid flow from a louver's top surface and past its bottom surface to form droplets or streams to fall from a lower part of the flange and prevent travel of the liquid flow along the bottom surface of the louver.

Louvered roof systems are provided with one or more louvers. Such louvers can be combined in an assembly that is movable between an open condition and a closed condition. In the closed condition, louvers in the assembly engage one another. In such engagement, a leg extending generally transversely from one louver may include a wing that extends generally transversely to the leg and that abuts a surface of an adjacent louver. Additionally or alternatively, in such engagement, a leg extending transversely from one louver may be received in a notch in an adjacent louver. An end cap can include a downwardly extending flange that directs liquid flow from a louver's top surface and past its bottom surface to form droplets or streams to fall from a lower part of the flange and prevent travel of the liquid flow along the bottom surface of the louver.

Hardware for a door, latch assemblies, exit device assemblies, and jalousies are disclosed herein. Hardware for a door includes at least one component formed from a material configured to dampen sound produced in use of the hardware. An exit device assembly includes at least one component formed from a material configured to dampen sound produced in use of the exit device assembly. A jalousie includes at least one component formed from a material configured to dampen sound produced in use of the jalousie.

Hardware for a door, latch assemblies, exit device assemblies, and jalousies are disclosed herein. Hardware for a door includes at least one component formed from a material configured to dampen sound produced in use of the hardware. An exit device assembly includes at least one component formed from a material configured to dampen sound produced in use of the exit device assembly. A jalousie includes at least one component formed from a material configured to dampen sound produced in use of the jalousie.