Abstract: A decorative shutter assembly securable to an opening of a building for security and storm protection. The shutter assembly includes a shutter frame that is hingedly mounted within a mounting assembly. The shutter assembly includes a plurality of operable shutter slats that extend between vertical shutter columns. Each shutter slat includes an elongate decorative shell disposed over an inner skeletal structure. The inner skeletal structure includes a pair of spaced-apart lateral louver rods extending the length of the decorative shell and a plurality of end caps which are affixed at respective ends of the lateral louver rods. A central rod extends the length of the decorative shell and is arranged for mounting within the shutter columns to enable pivotal movement of the shutter slats between closed and open positions.

Abstract: An insulative glazing panel includes a frame provided between first and second glazing panes and at least one blind assembly. The frame includes first and second generally parallel sides and third and fourth generally parallel sides generally perpendicular to and spacing apart the first and second sides. The at least one blind assembly is pivotably mounted between the first and second sides and has a pivot axis parallel with the third and fourth sides, a flexible, reflective base sheet having first and second ends each with a spacing block and a flexible, reflective top sheet spaced from the base sheet by the spacing blocks to which first and second ends of the top sheet are attached.

Abstract: The present application discloses a display panel having a display area and an array of a plurality of subpixels in the display area. The display panel includes a base substrate and a light diffusion layer on the base substrate. The light diffusion layer includes a plurality of light diffusers separated from each other. Each of the plurality of light diffusers is configured to diffuse light emitted from the one of the plurality of subpixels nearest to an edge of the display area. A portion of diffused light emits out of the each of the plurality of light diffusers outside a region corresponding to the one of the plurality of subpixels nearest to the edge of the display area.

Abstract: A twin louver bank window assembly for efficient thermal control, the assembly including an assembly surround frame including a head member, a sill member and at least a pair of opposed side channel members and a pair of louver banks mounted relative to the assembly surround frame, each louver bank including a number of louvers, one louver bank located towards an outer side of the assembly surround frame and one louver bank located toward an inner side of the assembly surround frame.

Abstract: The present invention relates to systems and methods for solar energy utilization. One embodiment of the present invention relates to a rotating panel system for solar energy utilization, including thermal, electrical, and visual applications. The system includes a plurality of rotatable panels, a rotation system, and a housing. The housing both mechanically supports the rotatable panels and thermally insulates and/or redirects the heat and/or electricity generated by the panels. A second embodiment of the present invention relates to an automatic climate control system utilizing a rotating panel system. The system includes an enclosed region and a multi-panel solar system. The multi-panel solar system is positioned to extend between the interior and exterior regions of an enclosed region. A third embodiment of the present invention relates to a method for utilizing a plurality of panels to desirably accommodate for visual and thermal forms of solar energy.

Abstract: A window assembly includes a window frame and an exterior window treatment system mounted to the window frame. The exterior window treatment system has a treatment storage housing configured to receive an exterior window treatment movable between a stored position within the treatment storage housing and a deployed position extending from the treatment storage housing. The window system also includes at least one guide for guiding the window treatment between the stored position and the deployed position. The window assembly includes at least one interface frame coupled with each of the treatment storage housing and the at least one guide for engaging the window treatment system to the window frame.

Abstract: Inside a glass-enclosed chamber is a Venetian blind connected to internal elements for operating it, the elements being workable from outside to raise, lower and incline the slats. The raw slats of the blind are obtained by moulding a rolled strip of aluminum alloy hardened by magnesium. The strip has not been lapped in order to maintain a degree of roughness on both surfaces, ready to receive a reflecting layer. Reflective stratification includes a layer of pure aluminum adherent to the body of the slat that serves to fix a reflective type of interferential dielectric multilayer. Average thickness of the layer of sputtered aluminum depends on the diffusivity of reflected radiation required in relation to the maximum height of the peaks of surface roughness on the body of the slats. Useful multilayers increase reflectance to levels averaging over 85% on a wide interval of wavelengths from near infrared to ultraviolet.

Abstract: An invention is provided for a security shutter assembly. The security shutter assembly includes a shutter door having a plurality of operable louvers pivotally mounted between vertical stiles. A locking element is attached to the first vertical stile, and can be set in a locked position that secures the shutter door closed, and an open position that allows the shutter door to be opened. The locking element includes a louver flange portion that extends over the louvers when the louvers are in the closed position and the locking element is in the open position. However, the louvers block the louver flange from being positioned over the louvers when the louvers are in the open position, thus preventing the locking element from being placed in the open, and unlocked, position while the louvers are in the open position.

Abstract: An adjustable transmissive insulative array of vanes comprising a plurality of parallel longitudinally extending and transversely spaced vanes, each vane rotatable about its longitudinal axis between an insulative state and a transmissive state, each vane comprising an insulative body and a reflective layer on the outer surface of the body, the insulative body of each vane shaped such that in the insulative state the vane is operable to engage with adjacent vanes to form a substantially continuous insulating boundary, the insulative body of each vane further shaped such that in the transmissive state the vane cooperates with an adjacent vane to form an optical concentrator therebetween comprising a portion of the reflective layer of the vane and an portion of the reflective layer of the adjacent vane, each optical concentrator operable to transmit received light through the array of vanes.

Abstract: This disclosure provides a new type of shading device for windows. The shading device comprises two sheets of glass, a blind with a plurality of slates, and an actuating device rotating them. The slats are painted with a low reflectivity coating on one side and a high reflectivity coating on the other side. The blind is installed inside the air tight chamber formed by two sheets of glass. In addition, a low emissivity film can be applied on the wall of the air tight chamber. The shade device employs a control system to adjust the angle of the blind slats in response to various input signals.

Abstract: A louver blind structure comprises a frame with a plurality of louver members pivotally mounted at each longitudinal end thereof to the frame so as to pivot between open and closed positions. An elongated member is movable relative to the frame and is so positioned as to engage the louver members. An actuator is mounted to the frame for selectively imparting a movement to the elongated member. When imparting a movement to the elongated member the louver members engaged thereby are caused to pivot between the open and closed positions. A kit comprising this actuator and the elongate member for a louver blind structure is also provided.

Abstract: The present invention proposes a posture-adjustable solar-collecting window blind, which can adjust the position of solar cells to better collect solar energy. In the window blind, a solar detector and an ampere meter are used to detect the relationship between the incident angle of sunlight and an optimal arrangement of the solar detector. The relationship can be further used to adjust the positions of the plurality of solar cells. Furthermore, the window blind comprises a light sensor to detect the light intensity of a target area, which can be complementarily used to adjust the position of the plurality of solar cells.

Abstract: A direct-viewing type display device includes a display panel including a display region which has a plurality of pixel lines extending in a first direction and a frame region, the display region and the frame region having a border extending in the first direction therebetween; and a light-transmitting cover. The plurality of pixel lines include a first pixel line adjoining the border, a second pixel line, and a third pixel line. The first pixel line, the second pixel line and the third pixel line are of different colors from each other. The light-transmitting cover includes a lens portion located over the border, the lens portion refracting a part of light going toward the frame region. A light diffusion structure is provided between the lens portion and a part of the display panel including the first pixel line, the second pixel line and the third pixel line.

Abstract: A Bahama awning-type shutter with functional louvers that is strong enough to withstand all tropical weather and test standards relating to and including hurricane force winds, while incorporating the user-friendly, easy opening mechanism of a jalousie. The opening mechanism is an L-angle structure which is capable of moving all of the louvers in unison, opening them by pulling out on the L-angle and closing them by pushing inward on the L-angle. When the shutter is locked against the structure to which it is attached a portion of the L-angle is positioned between the inner face of the shutter and the structure and cannot move outward, thus locking the louvers in a closed position. In this closed position the louvers have the strength to resist hurricane force winds.

Abstract: A portable operational privacy pressed on glass-cover blind for doors with oval shape glass and windows that can be mounted to any door or window by means of releasable fasteners mounted on the back side of the privacy screen. The blind-slats can be oriented in either a horizontal or vertical position having the operating-rod perpendicularly mounted to the blind-slats. Additionally, the present invention provides for a privacy screen having a frame with a plurality of fabric slats extending longitudinally across the privacy screen frame without the need of tools, drilling, holes, nails, etc.

Abstract: An adjustable flap, designed for the production of a covering device, includes a section (12) that is made of translucent material with length L1 and longitudinal axis A1 around which the flap (10) is articulated to rotate, and at least one slat (14) that is made of opaque material with length L2, L2 that is at most equal to L1, and longitudinal axis A2, A2 that is parallel to A1, around which the slat (14) is articulated to rotate relative to the flap.

Abstract: A Bahama awning-type shutter with functional louvers that is strong enough to withstand all tropical weather and test standards relating to and including hurricane force winds, while incorporating the user-friendly, easy opening mechanism of a jalousie. The opening mechanism is an L-angle structure which is capable of moving all of the louvers in unison, opening them by pulling out on the L-angle and closing them by pushing inward on the L-angle. When the shutter is locked against the structure to which it is attached a portion of the L-angle is positioned between the inner face of the shutter and the structure and cannot move outward, thus locking the louvers in a closed position. In this closed position the louvers have the strength to resist hurricane force winds.

Abstract: The adjustable louvered armor window system invention comprises angled louvers made of the lightweight opaque armor. For the front window a viewing window of ballistic glass can be installed, the rear or sides could be solid armor. The louvers have overlaps to provide for gap protection. When no threat is present, the louvers are in the full open position. Once a threat is detected, then the louvers are closed. The movement of the louvers can be accomplished by a push/pull cable, hydraulic pressure, air pressure or other means. The system in the fully open position allows for a complete unobstructed viewing area. In the semi-deployed or partial down position, the system provides partial ballistic coverage for the occupant, and still allows for some occupant vision capability. In the fully deployed, or fully closed position, the system provides full ballistic coverage for the occupant, with a small viewing area or port, which is made of ballistic grade transparent armor.

Abstract: The present invention is a pair of sliding louvered doors consisting of first and second louvered doors. Each of the louvered doors has a frame consisting of a pair of vertical stiles, each stile having a front face and a rear face and a plurality of louvers mounted between the stiles. The doors are mounted to an elongated head member having two parallel support tracks, each louvered door being suspended on a different track such that the first louvered door is mounted parallel to and in front of the second louvered door. The two louvered doors are separated from each other by a distance such that the rear face of the stiles of the first door faces the front face of the stiles of the second door. The louvers of the first door are mounted to the stiles of the first door such that a portion of the louvers extend beyond the front face of the stiles and the louvers do not extend substantially beyond the rear face of the stiles.

Abstract: A combined defence shutter and blind is located in a window opening inwardly of the window. The shutter comprises a shutter frame secured in the window opening, and a plurality of parallel blades extending across the shutter frame, each said blade having in cross-section a shape which includes a point at each opposed edge of the blade and having a reinforcing axial member extending therethrough and engaged in respective opposing sides of the shutter frame. The blades are linked together and rotatable such that rotation of one blade induces the other blades to rotate simultaneously between a closed position, in which the blades lie substantially parallel to the window so as to form a continuous shutter, and an open position substantially normal to the closed position.

Abstract: A retrofit blind assembly for a doorlight. The assembly includes a frame, a transparent panel, and a blind snap-fitted to the frame. The blind actuator includes gears and a toothed belt for positive, non-slip actuation. A pair of blind guides are mounted on the opposite sides of the frame to receive and guide the opposite ends of the blind. The mounting system includes a pair of brackets that can be secured between the doorlight and the door and upon which the assembly can be hung. The mounting system also includes a pair of movable catches on the lower portion of the frame snap that can be locked behind the doorlight to secure the lower end of the assembly.

Abstract: A screen assembly for installation in a fenestration product of the type having a window covering with a sliding operator. The screen assembly includes a screen frame having a screen material and is adapted to releasably attach to an interior side of the fenestration product. The screen assembly includes a screen operator slidable relative to the screen frame and releasably engagable with the sliding operator, such that the screen operator is operable from the interior side of the screen assembly.

Abstract: A impact protection system for building openings, such as windows and doors, includes a shutter assembly having angled blades extending between frame members in such as manner that access areas are provided when the shutters are closed to permit insertion of a storm bar clip to secure a reinforcing storm bar. The storm bar can be secured to the surrounding wall by removable wall mounts.

Abstract: A retrofit blind assembly for a doorlight. The assembly includes a frame, a transparent panel, and a blind snap-fitted to the frame. The blind actuator includes gears and a toothed belt for positive, non-slip actuation. A pair of blind guides are mounted on the opposite sides of the frame to receive and guide the opposite ends of the blind. The mounting system includes a pair of brackets that can be secured between the doorlight and the door and upon which the assembly can be hung. The mounting system also includes a pair of movable catches on the lower portion of the frame snap that can be locked behind the doorlight to secure the lower end of the assembly.

Abstract: This invention relates to an overhead door closer with slide arm assembly (1) having a toothed pinion (6) that is eccentrically supported and presents a circular rolling curve, which pinion meshes with a toothed rack (5) arranged at a piston (4). The invention concentrates on a particular embodiment of the rolling curve and of the teeth (9) of the toothed rack (5) in adaptation to a toothing of the pinion (6). Furthermore, the invention concentrates on an improved embodiment of the delayed closing operation in order to achieve an optimized movement pattern of the piston (4) within the housing (2) of the overhead door closer with slide arm assembly (1).

Abstract: An actuation assembly for double-glazing units with a frame with two glazed panes that form a hermetic air space accommodating shutters movable to be gathered or rolled-up, which comprises rotary motion speed varying elements, with a first rotor, with a magnet ring external to the unit and a second rotor, with a magnet ring arranged inside the unit to surround coaxially thereto, the rotation shaft on which the cords, from which the shutters hangs, are wound.

Abstract: An improved window covering and lighting system for a window in a room includes a plurality of cornices, each cornice including a window covering supported by the cornice and movable between an open position and a closed position, an actuator supported by the cornice for moving the window covering between the open position and the closed position, a lighting system mounted to the cornice, and a programmable logic unit for operating at least one of the actuator and the lighting system independently from one another upon demand. The system also includes a remote control unit providing a signal selectively to the programmable logic unit to operate at least one of the plurality of cornices. Each of the plurality of cornices further includes a light sensor for sensing ambient light conditions in the room, and a motion detector for detecting occupance of the room. The programmable logic control unit is responsive to the sensed ambient light conditions and the detected occupance.

Abstract: The present invention provides an exterior window shutter that is made of PVC, has functional louvers, but is still hurricane resistant. The shutter includes a perimeter framework that is adapted to receive a transparent impact resistant member. This impact resistant member is permanently affixed to the perimeter framework to increase structural stability. Additionally, this invention provides a method to make a high strength and structurally stable hurricane resistant louvered shutter.

Abstract: The invention is relative to a frame able to receive, on at least one of its two main faces, a heat sensor characterized in that said frame said frame can be oriented in a continuously progressing range or in a stepping mode with respect to the illumination of the sun.

Abstract: A cover construction (10) for windows, including a generally rectangular housing member (20) which is affixed to, and projects outwardly from, a window frame (101) via a mounting flange (26) and further includes an angled roof panel (21), a floor panel (25), a pair of opposed side panels (22), (23) and a generally open front panel (24).

Abstract: A magnetic dual glasses window structure includes a window blind, provided between two panes of glass, including tilt cords for supporting a plurality of slats and an operating system which includes a shaft attached to the tilt cords and a magnetic actuating device. The magnetic actuating device includes an actuating cord movably and encirclingly attaching to two end portions of the shaft, a pair of resilient elements attached to the actuating cord respectively for applying an urging force against the actuating cord, a magnetic seat connecting between the two resilient elements and positioned adjacent an inner surface of one of the panes of glass, and a magnetic slider positioned adjacent an outer surface of the pane of glass for magnetically driving the magnetic seat to move. Therefore, by sliding the magnetic slider, the actuating cord drives the shaft to rotate for controlling the tilt angle of each of the slats.

Abstract: The present invention 10 discloses a louvered window insert comprising two louvered frame sections 39, 50 each having one vertical member 44, 60 with an upper and lower horizontal member 40, 42, 56, 58 extending from each end thereof and a plurality of louver blades 46, 52 extending horizontally therebetween. The distal ends of the horizontal members and louver blades of the first section have recesses 48, 54 to receive and slidably secure the horizontal members 56, 58 and louver blades 52 of the second section as they travel therethrough allowing a user to size the insert to a window 12 simply by placing the fully overlapped assembly inside an open window 12 and separating the two frame sections 39, 50 thereby reducing the overlap of the horizontal members and the louvers and effectively elongating the insert until the two vertical members 44, 60 are flush to their respective side jambs and then lowering the window 12 until it sits atop the present invention.

Abstract: A jalousie assembly comprising a plurality of independently adjustable front and rear panels forming tandem pairs. A front panel operator operates the front panels and a rear panel operator operates the rear panels independently from the front panels. Thus, the front panels can be opened independently from the rear panels or together with the rear panels. The front panel may be constructed of aluminum or glass while the rear panel may be constructed of transparent glass.

Abstract: Apparatus for protecting an occupant of a building from flying debris from a frangible structure such as a window or the like, in the event of an explosion or other blast. The apparatus comprises a protective louver system disposed adjacent the building structure. The louver system comprises a plurality of louvers that are movable from an open position to a closed position wherein they form a protective barrier covering the building structure. A louver closing device is operatively connected to the louvers and is operable to move them to the closed position in the event of an explosion or other blast. The louvers are provided with locking portions so that they are interlocked when in the closed position and displaced inwardly by an explosion or other blast. Reinforcing cables may be positioned adjacent the inner surface of the louver system to support the louvers in the closed position when they are displaced inwardly by the explosion or other blast.

Abstract: A window assembly is provided including a frame and a pane of glass mounted on the frame. Also included is a vane assembly having a plurality of vanes each with a pair of posts coupled to ends thereof and extending therefrom in coaxial relationship for being rotatably coupled with respect to the frame. The posts of the vanes are interconnected for effecting the coincident rotation thereof about parallel axes upon the rotation of at least one of the vanes. Next provided is a manual control mechanism for rotating at least one of the vanes.

Abstract: A frame member having a centrally disposed opening, a plurality of louvers pivotally disposed within the opening of the frame member, a relief notch on the lateral edge of the louver, and a louver adjusting member attached to the plurality of louvers. The louver adjusting member is completely disposed within the relief notch of the louvers, thereby maintaining at least a flush profile on either the inner surface or outer surface of the window shutter when the louvers are in the closed position. The window shutter apparatus further comprises a hanging strip that includes pivotally attaching the frame member thereto, a compliance strip for attachment to the hanging strip, and a T-strip attached to either the hanging strip or frame member. The compliance strip adjusts for dimensional variations in the side surfaces of the window opening that leave a gap when the hanging strip is placed adjacent thereto.

Abstract: A new or replacement window having a window frame in which is mounted shutters, windows, and a screen. The frame has multiple tracks for receiving slidable shutters, a slidable window occupying half the length of the track, and a stationary frame being occupied half by a screen and half by a window. The shutters have horizontal slats some of which are rotatable.

Abstract: A double-pane window having a light-control assembly within its peripheral frame. The light-control assembly has an upper section which is adapted to redirect light entering the window through the outside pane so that the light, exiting the window through the inside pane, is reflected upwardly against a ceiling surface of the interior of a room, on the wall of which the window is mounted and a lower section which is adapted to inhibit light entering the window through the outside pane from exiting the window through the inside pane. The lower section and optionally the upper section can each comprise a plurality of laterally-extending slats which can be pivoted about their laterally-extending axes to inhibit or redirect light entering the window. If desired, the slats of the lower section can be pivoted independently of the slats of the upper section. The slats of at least the upper section preferably have a transverse cross-section with a concave surface facing upwardly.

Abstract: A window insert suitable for insertion into a conventional window insert receptacle includes a frame and a blind assembly mounted to the frame. The frame defines an opening, and is adapted for insertion into the window insert receptacle. The blind assembly can include a plurality of slats which cover the opening.

Abstract: A blinder includes main frames spaced apart from each other with a predetermined distance. Each of the main frames has an internal empty space. Support frames are perpendicularly interposed between the main frames to support the main frames. A plurality of shutting members is arranged parallel to each other between the main frames inside the support frames. A motor is fixed to each of the main frames within the internal empty space. A driving shaft is movably connected to the motor within the internal empty space. A plurality of rotating members is fixed to the driving shaft to rotate upon receipt of a rotational power from the motor via the driving shaft. A pulling member is held between each of the opposite rotating members to keep each of the shutting members at its proper place. The pulling member is partially wound around the opposite rotating members in such a manner as to move with the rotation of the rotating member and control an opening or closing operation of the shutting member.

Abstract: A device for operating venetian blinds inside a sealed chamber between two panes of glass has a gearing-down internal mechanism provided for rotating a shaft that supports and operates a blind, and a gearing-up external mechanism applied to one of the glass panes and connected with the gearing-down internal mechanism by a magnetic connection.

Abstract: An improved louvered apparatus for the regulation of solar light and heat radiation through windows and the like, is disclosed. The unique configuration of the present invention is innovative, simple, and a considerable improvement over the conventional louvered apparatuses. Some of the various features of the present invention, which are described, herein, include precise very low frictional operation, apparatus is maintenance free, a compact design, uncomplicated fast two-bracket installation, available in the standard manual, or optional remote electronic actuation, and apparatus has been designed to be manufactured inexpensively.

Abstract: A spring-loaded quick-release mechanism to a locking security grille is triggered by (i) manual activation, preferably through a foot switch, or (ii) fire, typically through a thermal fuse. Fins incorporated in, and/or affixed to the bars of, a security grille are preferably rotating, normally in phase, so as to serve as a louver or, when completely closed, an interlocked security shield, or panel. One locking release mechanism, which may optionally be quick release, has a sliding bar with alternate (i) extension and (ii) notch regions that respective engage the ends of solid, purely cylindrical, elongate prisms, normally cylindrical bars, to respective lock, and disengage, these prisms in a security grille. Finally, a security grille with standard universal retention assemblies variously serves to retain any, and any combinations, of tubular bars, solid bars, fins mounted to bars, and solid fins.

Abstract: The window unit of the invention comprises four peripheral channel members linked with corner members to form a window frame. Two glass panels are spaced by this frame to form an inner chamber, the louver blind structure of the invention being located completely therein. The louver blind structure comprises a plurality of horizontal slats pivotally supported at both their extremities and each having an integral toothed wheel engaging a complementary rack on an actuator bar, the latter positioned adjacent to a side peripheral channel member and being free to move upwards or downwards along it. This upward or downward movement imparts a pivoting movement to the slats. The louver blind structure further comprises a support channel member supporting a reversible electrical motor having a driving shaft. This shaft has an eccentric stud which engages the actuator bar and must therefore be kept properly alined so as to resist radial forces exerted thereon.

Abstract: An elegant plantation security shutter assembly for a window in a wall of a building comprising a casing with components for reinforcing the casing. Structures are for mounting the casing onto the wall behind the window. A pair of shutters are provided, with elements for reinforcing each shutter. Paraphernalia is for securing each shutter within the casing, so as to stop a thief from an unauthorized entry through the window into the building, by preventing the thief from breaking the shutters and the casing.

Abstract: A closure construction and mounting assembly comprising: a steel frame in a rectangular configuration having horizontal parallel upper and lower extents and vertical parallel interior and exterior side extents with a central aperture extending therethrough; a panel positioned within the central aperture, the panel having a gridwork of horizontally disposed steel members and vertically disposed steel members in a gridlock configuration to form rectangular apertures extending therethrough, with the spacing between the apertures sized such as to preclude the passage of a person therethrough; coverings secured to the panel peripherally and in contact with the steel members to cover the apertures; and adjustment mechanisms for moving the panel between a locked and unlocked orientation.

Abstract: This invention consists of a window shutter that eliminates the need for hanging strips which are aesthetically unpleasing and also prevent tilt in windows from pivoting inward as designed. Aesthetically the shutter is more pleasing to the view as the hinges and hinge pins are concealed from view when the shutter is closed. The shutter features two or three dimensional adjustment of shutter position with respect to the frame thereby allowing easy positional adjustment without requiring the use of a hanging strip and have a decorative edge that provides a clearance and permits the shutters to open to 120.degree. or more.

Abstract: A window includes a frame and a number of beams rotatably supported in the frame. The beams each includes a pinion formed in the middle portion. A number of panels are secured to the beams and rotated in concert with the beams. A rod is vertically disposed in the frame and includes a number of worm gears for engaging with the pinions such that the beams and the panels may be rotated by the rod when the rod is rotated. The rod may also be rotated by a motor. The window includes a configuration safety enough for protecting against burglars and for use as a sunshade.

Abstract: A venetian blind assembly is described, for use in a glazed door having a rectangular window insert mounted therein and forming a primary glazing. In the improved assembly a rectangular frame is provided with a secondary glazing mounted within the rectangular frame, and a venetian blind mounted completely within the frame so as to be between the primary and secondary glazings when the assembly is secured to the door. Holding clips engage the exterior of the rectangular frame and are held in place by screws which are engaged in holes used for the securing of the rectangular window frame insert into the main door body of the door. Alternatively, an additional frame may be secured to the door around the window insert of the door and the double glazed unit with the venetian blind therein may be held to this additional frame by means of snap-on clips.

Abstract: An apparatus is provided for securing a window covering to a window by attachment to the frame of a window pane in a manner which retains the window covering in spaced apart relation relative to the window pane. This apparatus can be snap-fit onto the window pane without use of penetrating fasteners. This apparatus also permits utilization in retrofit double pane arrangements and facilitates removal of individual window panes with the window covering as a single unit to avoid disconnection of through-window adjustment controls.