A multi-function leaf-separating-discharging height-and-angle-adjustable louvered pergola comprises: opposing end caps, multi-screen-securing edges, rainwater-and-wind-sealing insulation strips attached to multi-screen-securing louver blades for automatically raising and lowering shade and video projection screens and controlling fruit-drying duration and also functioning as a truck-bed tonneau cover, cradle axels inserted between cradle caps and rotation cradles, stanchions and rotation cradles screwed to first and second leaf-discharging side gutter beams, corner posts, multi-louver-control bar connected to linkage arm, linkage arm connected to worm-gear transmission controlled by multi-screen-raising-lowering multi-louver-control crank, first and second rainwater-channeling-and-leaf-filtering side gutter beams attached to the corner posts, the discrete-leaf-filtering tubes, spouts, corner-post base plates, and height-and-angle-adjustable tube screws screwed into the corner-post base plates.

A multi-function leaf-separating-discharging height-and-angle-adjustable louvered pergola comprises: opposing end caps, multi-screen-securing edges, rainwater-and-wind-sealing insulation strips attached to multi-screen-securing louver blades for automatically raising and lowering shade and video projection screens and controlling fruit-drying duration and also functioning as a truck-bed tonneau cover, cradle axels inserted between cradle caps and rotation cradles, stanchions and rotation cradles screwed to first and second leaf-discharging side gutter beams, corner posts, multi-louver-control bar connected to linkage arm, linkage arm connected to worm-gear transmission controlled by multi-screen-raising-lowering multi-louver-control crank, first and second rainwater-channeling-and-leaf-filtering side gutter beams attached to the corner posts, the discrete-leaf-filtering tubes, spouts, corner-post base plates, and height-and-angle-adjustable tube screws screwed into the corner-post base plates.

An actuation device for the slats of a wing of a shutter has two sections intended to be mounted in the uprights of a frame of the wing, a plurality of flanges that are rotatably mounted in holes obtained in the sections, and locking devices disposed in such a way to hold the flanges and prevent the flanges from coming out of the holes of the section.

A flood-protective ventilation louver includes a window frame assembly, slat assemblies, a transmission mechanism, and a buoyance switch assembly. During flooding, external water passes through the window frame assembly into the buoyance switch assembly, such that the buoyance switch assembly is caused to release the transmission mechanism from constraint to thereby allow the slat of each of the slat assemblies to oscillate downward automatically and thus automatic closing is realized.

An electrostatic precipitator integrated with a double-skin facade of a building, includes: an outer window installed at an outdoor side of the building; an outer upper opening and an outer lower opening installed at upper and lower portions, respectively, of the outer window for indoor ventilation; an inner window providing a hollow layer between the inner window and the outer window by being installed at a room side facing the outer window; an inner upper opening and an inner lower opening installed at upper and lower portions, respectively, of the inner window for ventilation; at least one discharge electrode charging particles introduced into the hollow layer through the outer lower opening by being installed in the hollow layer; and dust collecting electrodes precipitating charged particles by being installed in contact with the hollow layer.

An electrostatic precipitator integrated with a double-skin facade of a building, includes: an outer window installed at an outdoor side of the building; an outer upper opening and an outer lower opening installed at upper and lower portions, respectively, of the outer window for indoor ventilation; an inner window providing a hollow layer between the inner window and the outer window by being installed at a room side facing the outer window; an inner upper opening and an inner lower opening installed at upper and lower portions, respectively, of the inner window for ventilation; at least one discharge electrode charging particles introduced into the hollow layer through the outer lower opening by being installed in the hollow layer; and dust collecting electrodes precipitating charged particles by being installed in contact with the hollow layer.

A shutter assembly including a plurality of shutter panels arranged side-by-side. Each shutter panel has a respective plurality of louvers and a respective operable tilt mechanism configured to adjust the tilt angle of the respective plurality of louvers. A control shaft operates the tilt mechanisms. The control shaft is configured to drive simultaneously the respective tilt mechanisms of all of the plurality of shutter panels.

A shutter assembly including a plurality of shutter panels arranged side-by-side. Each shutter panel has a respective plurality of louvers and a respective operable tilt mechanism configured to adjust the tilt angle of the respective plurality of louvers. A control shaft operates the tilt mechanisms. The control shaft is configured to drive simultaneously the respective tilt mechanisms of all of the plurality of shutter panels.

A flood-protective ventilation louver includes a window frame assembly, slat assemblies, a transmission mechanism, and a buoyance switch assembly. During flooding, external water passes through the window frame assembly into the buoyance switch assembly, such that the buoyance switch assembly is caused to release the transmission mechanism from constraint to thereby allow the slat of each of the slat assemblies to oscillate downward automatically and thus automatic closing is realized.

A frame assembly for windows and doors includes a pair of side members and a pair of generally parallel cross members, each extending along a unique member axis. The cross members include a first frame portion and a second frame portion that extend generally along the member axis and are connected by a camming fastener that draws together and secures the first and second frame portions. A method of fabricating a shutter assembly includes forming a pair of C-shaped partial-frames, each from a side member coupled to portions of two cross-members. The method includes co-axially aligning corresponding portions of the two cross-members along two axes and joining the two C-shaped partial-frames with camming fasteners.