Abstract: A slat for a shutter is in the form of a hollow, flat tube. The slat is connected to a tubular adjusting rod by a swivel connector which comprises a pair of hook elements and a serrated body portion from which each of the hook elements is supported. The slats and the adjusting rod are each provided with openings into which the body portion of the swivel connector is inserted. Splines locating within the slat and the adjusting rod engage the serrations and lock the swivel connector in position. The shutters may also incorporate an anti-sag support for retention when in their closed position.

Abstract: A louvred structure comprises a frame with opposing styles supporting a plurality of moveable louvres having pivot pins fitted in pivot pin openings of the styles. At least one of the styles is provided with an interior flexible clamp extending lengthwise along the style and gripping a plurality of the pivot pins for holding a set position of the louvres.

Abstract: Louvre structures wherein holding members for the louvres are carried on bars which extend across a frame and are pivotally mounted with respect to the frame so as to be axially rotatable relative to the frame and which cannot be removed from the frame, at least when the window is installed.

Abstract: This invention relates to an end cap for use with a hollow sheet metal louvre wherein the end cap 10 comprises an end wall 12, a shaft 16 on one side of the end wall for pivotal mounting of the end cap 10, upper and lower flanges 13 and 14 that extend along the upper and lower edges of the end wall 12 which in use extend over the upper and lower surfaces of the louvre 11, and resilient deformable gripping member 20 mounted between the upper and lower flanges 13 and 14 which in use allows the end cap 10 to be pushed onto the louvre 11 where the gripping member, which is located within the hollow louvre, bears against the sheet metal so as to hold the louvre 11 between the gripping member 20 and each upper and lower flange 13 and 14. In addition, the invention provides novel means for side by side stacking of assembled louvres, and a novel means is provided which allows the shaft 16 to engage a bracket 17 while at the same time preventing disengagement of the shaft in the normal operating position.

Abstract: In a shutter assembly (10) for buildings and the like, an array of parallel louvers (11) are preferably made of wood or wood product or of plastics material. Each louver is located by a pair of mounting arms (15) pivoted to parallel upright mullions (12). Each mounting arm has a tongue (18) protruding therefrom and engaged in a slot formed in the end of the louver. Thus, the tongue is invisible.

Abstract: A pivoted blade which has a centrally positioned V-shaped pin-receiving depression combined with a slidable mounting pin which is releasably secured within the depression in the blade. This pin comprises an elongated element which is circular in cross-section at one end thereof, and its other end is flattened at one side and of V-shape on the other side. The other end of the pin has a centrally positioned hole extending therethrough with this hole being centrally disposed with respect to the flattened side and extending through the apex of the V-shaped side. This centrally positioned hole is longer than it is wide with the longer cross-section extending longitudinally of the pin. The mounting pin is mounted at a side margin of the blade with the V-shaped portion of the pin fitting into the V-shaped depression in the blade and with the end of circular cross-section extending beyond the side margin of the blade.

Abstract: A swivel shutter assembly providing a plurality of louvers rotationally held within a framework which presents, by ship-lap type of construction between adjacent louvers, a flat wall type appearance when the louvers are fully closed. In addition, the swivel shutter assembly is constructed to provide adjustable degree of shutter opening at a plurality of differently selected positions, and to provide a swivel mechanism which allows removal and replacement of individual louvers in an easy yet expedient manner.

Abstract: A security clip is disclosed for use in a louver panel which prevents removal of the louver panel from its mounting brackets. The security clip extends substantially around the entire periphery of the louver panel and is substantially contained between the louver panel and the mounting bracket. A tab extending from the security clip engages a notch in the mounting bracket such that removal of the louver panel is positively prevented even if the mounting bracket is deformed. The ends of the security clip are positively locked to prevent deformation of the security clip.

Abstract: A ribbed metal foil slat has a slat support bracket at each slat end, each bracket being driven by a corresponding four-bar linkage. The two four-bar linkages are driven concurrently in the same direction.

Abstract: A mounting pin for a pivoted damper blade is disclosed which comprises a cylindrical shaft having a cenrtrally positioned hole extending therethrough, this hole being surrounded on one side of the pin with an upstanding flat seat. This hole is longer than it is wide so that it extends longitudinally of the pin. Also, the pin at one side of the seat is formed to include longitudinal depressions which provide a plurality of circumferentially spaced arc segments which form an interrupted circle. This pin is mounted on a blade at a side margin thereof by means of a bolt extending through a hole in the blade and through the hole in the pin, and a nut is associated with the bolt, the nut locking against the flat seat of the pin. A resilient gasket is interposed between the head of the bolt and the rear face of the blade so that the bolt need not be held while the nut is tightened. Also, a locking washer is desirably interposed between the nut and the seat.

Abstract: A liner (interchangeable) for each end bracket of a louver assembly, the liner consisting of a flat strip with longitudinal edge abutment and U-bent at each end to embrace the end margins of the louver pane or panel, with either inturned U-arm disposed to transversely receive a resilient U-shaped retainer jointly embracing the respective arm and adjacent bracket wall, with contact anchorage means carried on both the bent arm and retainer so as to jointly prevent external displacement of the liner (and its embraced louver panel) from the end brackets.

Abstract: A window frame, especially for ventilation by setting at various angles a plurality of slats mounted on said frame is disclosed, the improvement consisting in that the control lever which acts upon the rod which gangs the slats for setting them at an angle together has the end pointing towards the interior of the frame in the form of a scalloped sector, the points of which engage, in turn, a notch formed on a brace which is removably fastened to the window frame upright. The mechanism is reliable and versatile since it permits that the slats may be set at various angles in a stable manner. Means are also provided for preventing slat rattle by properly shaping the individual frames of the slat carriers. Thermoplastics materials are widely used in the construction of the frame and accessories.

Abstract: A blade holder for a louvre window comprises an elongated member having a first longitudinally extending groove with an inwardly facing opening for receiving an end edge of a louvre blade, means intermediate the ends of the member for pivotally mounting the member on a window frame element, a second longitudinally extending groove in the elongated member, parallel to the first groove, and a metal elongated reinforcement element for mounting in said second groove. The reinforcement element preferably extends across the common wall between the two grooves to engage the louvre blade, and may also be adhesively bonded to the louvre blade.

Abstract: A pair of left-end and right-end clips which are each installed with a pop rivet to the left-end portion and right-end portion, respectively, of an existing glass panel of a jalousie or louver. The installed clips each overlaps a panel mounting bracket to prevent the removal of the panel for stealthy, illegal entry into a building. The clips can also be used to secure the panel when the existing brackets are broken.

Abstract: An apparatus and method for clamping louvered window panes in the window frame sections of a louvered window structure. The louvered window structure usually includes a plurality of pivotably movable pane supporting elements which have elongate slots to receive the panes. The apparatus comprises a clamping device in the nature of a band having a pair of overlapping terminal portions, which form an envelope section and this band is capable of being disposed over a portion of each window pane supporting element and a portion of the pane which extends beyond the slot formed in the pane supporting element. An individual clamping device is located at each of the opposite ends of each or certain of the window panes. The clamping device includes a locking mechanism which is capable of causing locking engagement of the two terminal portions of the band, such that the clamping device can be clamped about the window frame section and the pane to lockably hold the pane in the window frame structure.

Abstract: A blade holder for a louvre window comprises an elongated member having a longitudinally groove for retaining an end edge of a louvre blade, a rebate of cruciform cross-section formed in that surface of the elongated member which is disposed adjacent the surface of a window frame on which the blade holder is pivotally mounted, and a drive plate for pivotally mounting the elongated member on the window frame, the drive plate comprising a main body and a boss separated by a bearing portion, the bearing portion being in rotational engagement within an aperture in the window frame, and the boss having a cruciform cross-section so that it has a driving engagement with the rebate in the elongated member. Two hardened steel pins are mounted on the driving plate to extend axially through the boss to prevent removal of the louvre by sawing through the boss.

Abstract: A locking jalousie frame having a pair of longitudinally extending, spaced, substantially parallel side rails provided with fixed pivots supporting jalousie retaining cover assemblies. Each of the cover assemblies includes a sheath provided with a socket arranged for retainingly receiving an end of a slat. A filler member is insertable into and removable from the sheath independently of the slat for permitting installation and removal of the slat in an opposed pair of the sheaths, while removal of the filler member, and accordingly the slat, from the sheath can only be accomplished from the normally interior side of the jalousie so as to prevent surreptitious illegal entry through the jalousie.