Abstract: A retractable cover for architectural openings having collapsible vanes includes a support structure in the form of a sheet of material, monofilaments, tapes, ribbons, cords, or the like, supporting an upper edge of a plurality of vertically spaced, horizontally extending vanes with the lower edges of the vanes in most embodiments of the invention being connected to operating elements adapted to raise the lower edges of each vane toward the upper edges to define openings or gaps between the vanes through which vision and light can pass in an open condition of the covering. Variations of the covering do not require movement of a lower edge of a vane relative to an upper edge but simply movement of some vanes relative to other vanes. The vanes can be made of materials having different flexibilities and where more rigid materials are used, creased fold lines can be established for desired operability.

Abstract: A weight compensation system is provided for a motor driven door having a door leaf that is driven by a mechanism inside guide rails on a side of the door leaf to move the door between an opened position and a closed position. The weight compensation system includes a weight-compensation device comprising a cable unit and a spring unit arranged at least on one side of the door leaf, wherein the cable unit comprises a single cable. A cable-tension compensation device at which the single cable is deflected creates two cable strands that are secured against breakage within the cable-tension compensation device. The cable-tension compensation device is positioned locally fixed or secured to the door leaf so that two cable strands move at a distance to each other, and the exposed ends of the cable are guided together and attached to the door leaf or are positioned locally fixed, respectively.

Abstract: An architectural window covering having a programmable electric motor is disclosed. The architectural window covering includes a head rail comprising at least one cavity, a shade coupled to the head rail, a bottom rail coupled to the shade, and at least two tandem stacked motors coupled to the shade via a drive rail such that the at least two motors fit within the at least one cavity of the head rail.

Abstract: A window covering includes a first sheet of material connected to a mounting device adjacent to the front side of the window covering. A second sheet of material may be connected to a roller attached to the mounting device so that the second sheet is windable and unwindable from the roller. A third sheet of material is connected to the mounting device or the first sheet such that the second sheet is positioned between the first and third sheets. The first side of the first sheet is connected to a first side of the third sheet at first positions and the opposite sides of the first and third sheets are connected together at second positions. The second positions may be parallel to the first positions. The second sheet extends from the roller between the first and second positions and between the first sheet and the third sheet.

Abstract: The present application pertains to a system for adjusting the height of a covering, such as window or a wall covering formed of two or more covering segments that are axially aligned. The system includes a link that selectively transmits rotation between two adjacent coverage thereby allowing the two coverings to be controlled, e.g., raised or lowered, simultaneously. The link includes a clutch that allows one of the segments to be rotated with respect to the other so that the bottom end of one of the coverings can be adjusted and aligned horizontally independently of the other. Optionally, the clutch includes an internal member that provides a mechanical advantage while the one covering is adjusted.

Abstract: A device for fitting to a window or other glazing panel comprises first and second parallel rollers disposed at spaced apart positions on opposite sides of the device and an elongate substrate sheet extending between the rollers, the substrate sheet being provided at its upper end with a series of spatially separated optical elements arranged to reflect incident sunlight upwardly. The lower end of the substrate is free of elements and is preferably formed of a material which controls the amount of long wave infra-red radiation leaving the room in which the window is provided. The position of the ends of the substrate can be varied by turning the rollers to variably control the solar energy entering a building and to control the amount heat exiting the room. The device may also provide a sealed air gap across the window to act as a thermal barrier.

Abstract: An accordion-style storm shutter panel and system for use in covering an opening in a building structure including an outer frame assembly and a plurality of vertically mounted elongated panels foldably connected together in accordion style fashion. The panels are joined by slip fitted lateral knuckle joints and a track engaging a guide which extends from ends of the knuckle joints. A plurality of spaced apertures are formed through and extend over the substantial length of each of the panels, each of said apertures preferably having a notch-and-tab arrangement extending around a periphery thereof. A plurality of transparent, translucent or opaque locking plugs are sized and have a spaced locking tab arrangement around a periphery thereof, which matably and releasably lockingly engages within each aperture. Alternately, the plugs may be fixed in place and be light-transmitting.

Abstract: A high load operation industrial roll door, including a flexible door curtain windable about a top roll positioned above a door opening and provided with a drive system. The roll door includes a bottom beam fastened to the door curtain, and a biasing spring, for resisting movement of the door upon application of a load thereon, and a positive stop preventing movement of the biasing means beyond a predetermined point.

Abstract: A roller shutter comprises a series of links (2), each of which has a link plate (7) which determines two main surfaces (10, 11), two opposite longitudinal edges (8, 9) and two opposite transverse edges (12, 13), as well as eccentric hinge parts (4-6) which are situated near the longitudinal edges (8, 9), in each case two links (7) being hingedly connected to one another by means of the hinge parts (4-6), which series of links (2) can be brought into a rolled-up state, in which the links (2) are rotated with respect to one another, and an unrolled state in which the links (2) determine a substantially flat plane. Closure means (18) are provided on the longitudinal edges (8, 9), by means of which the link plates (7) are closed off with respect to one another in the unrolled, flat state of the series of link plates (7).

Abstract: The present invention relates to a transparent security shutter, of the type that can be wound about a drum arranged at the top thereof, said shutter being made up of a plurality of transparent slats (3), arranged horizontally on top of one another, and each connected to the immediately higher slat by means of two profiles (4, 5) with engaged matching sections, the shutter furthermore being of the type in which the slats are inserted between the profiles (4, 5) and in which the profiles and/or the slats slide, at either end thereof, in a vertical lateral slide (6) attached to the opening (??) which delimits the window to be protected, characterized in that each one of the slats thereof is made up of a plurality of I-section modules (7, 12) assembled two-by-two in a laterally overlapping fashion, the top (20) and bottom (21) flanges of said modules being inserted by sliding between two opposing rails (22, 23), provided on the surfaces of the profiles opposite the locking surfaces thereof, respectively the top

Abstract: An articulating cover member for covering an opening, such as a spa, includes a plurality of pivotally connected door panels wherein each of the door panels include at least one longitudinally-extending tubular member and at least one longitudinally-extending attachment member associated with a longitudinal edge portion of the at least one tubular member. The at least one longitudinally-extending attachment member is configured for cooperation with an attachment member extending along a longitudinal edge portion of the tubular member of an adjacent door panel for pivotally connecting the door panels. An insulating material may be located within the tubular members and a motor assembly may be provided for automatic actuation of the cover member.

Abstract: The present invention comprises two sheets of canvas fabric or curtains and means for rolling up vertical strips or bands connected to intermediate crosspieces that move along guides when the strips are taken up. The crosspieces have a hollow cross section with an upper ridge and a lower ridge with holes for the strips to pass through. The crosspieces have, on the outer lateral faces, at least one groove for the fastening, by means of a bead, of bands for joining to the adjacent curtain. The inner faces of the crosspiece have one or more rounded longitudinal projections for guiding the displacement strips. The crosspieces comprise shock-proof elastic element arranged on the upper and/or lower ridge.

Abstract: An industrial rollup door to selectively cover a doorway opening or to provide industrial guarding is presented. The rollup door comprises door leaf, comprised of lamellae, or panels a flexible strip as a lifting belt for selectively lifting and lowering the door, a continuous dampening profile running along the outer surface of each lamellae near an end, and a rotatable spiral disc to accept the lamellae as the door is lifted and to release the lamellae as the door is lowered.

Abstract: A window covering may include a roller attached to a mounting device, and a front member attached to the mounting device. Strips may extend from a roller attached to the mounting device. An upper portion of each strip may be attached to the roller and a lower portion of each strip may be connected to a bottom portion of the front member. Each strip passes through a respective column of ballast members. The ballast members are connected to the front member. The columns may each be comprised of ballast members that are not more than six inches below an immediately adjacent upper ballast member when the front member is in the extended position. The spacing of the ballast members and widths of the strips cooperate to prevent any of the strips from being pulled away from the ballast members to form a loop having a diameter greater than twelve inches.

Abstract: A roller blind is disclosed which provides horizontal slats for directional shading, enabling the application of a screen fabric which allows a greater portion of visible light to pass therethrough. The disclosed slatted roller blind is free from the usage of ladder cords and is simplistic in design. The disclosed slatted roller blind maintains a compact formation of a roller shade when retracted and has greater resistance to skewing along the longitudinal axis of the roller while being retracted. Furthermore, the disclosed slatted roller blind design is capable of being utilized as an outdoor or indoor blind.

Abstract: An electronic device assembly comprises a protecting panel an electronic device, which comprises a shell with a front cover and a back cover and a display panel received in the shell. A plurality of sliding grooves is opened in the shell and extends from the front cover to the back cover. The protective cover is slidably set in the sliding grooves so as to cover the display panel in a first state or expose the display panel in a second state.

Abstract: The invention relates to improvements in a roll-up shutter. More particularly, the invention provides an electrically-driven shutter which can be electrically deployed or retracted, and the slats may be electrically tilted for ventilation or vertically closed for maximum security, all by use of a single electric motor. The invention achieves the above objects by providing an electrically driven roll-up shutter, comprising a plurality of upper pivoted link elements each of which supports all lower components, the linkage pivots being arranged to allow roll-up on a shutter shaft or tube, the lowest of the link elements being attached to a slat tilt mechanism, the upper pivoted link elements when in tension with only the highest of the link elements in contact with the shutter shaft or tube form a substantially straight line.

Abstract: A rolling shutter and a slat for use in a rolling shutter are provided. The slat comprises an engaging track located at a first edge and a receptacle track located at a second edge. Illustratively, the engaging track has a hook-shaped profile and is disposed at an acute angle relative to an adjacent part of the body portion, is disposed at an angle of less than 180° relative to a vertical axis of the slat, or has a hook-shaped profile that curves for more than 180°, and the receptacle track comprises a lip and a guard defining a space adapted to receive therein an engaging track of an adjacent slat.

Abstract: Plural vertically aligned curtain sections form a first wall of a structure and are each coupled to a respective manual or powered rotary drive by means of a respective elongated, roll-up rod disposed in a lower hem, and extending the length, of the curtain section. The rotary drives are attached to horizontally spaced, vertical tracks for limiting the vertical drives, the roll-up rods and each curtain's lower hem to vertical motion in rolling up and unrolling the curtain sections. A water curtain maintained in a moist condition is disposed adjacent the inner surfaces of the curtain sections, with fans disposed on a second opposed wall of the structure for drawing air through the space occupied by the curtain sections for providing moist airflow through the structure's interior. Moist airflow and cooling are precisely controlled by controlling the gap between a pair of adjacent vertically spaced curtain sections.

Abstract: A fireproof, heat-insulating slat consists of a pair of slat members having the same structure and disposed in the opposite directions. An enclosed space is formed between the pair of slat members. A first upper shoulder and a first lower shoulder are formed on the top end of the slat from the left to the right, and a second lower shoulder and a second upper shoulder are formed on the bottom end of the slat from the left to the right. An upper hinge and a lower hinge part are formed on the first lower shoulder and the second lower shoulder, respectively, and the upper hinge part and the lower hinge part are bent toward the first upper shoulder and the second upper shoulder, respectively. The enclosed space is filled with a fireproof, heat-insulating material.

Abstract: A rail system is provided having two profile rails, between which a lamellar configuration having multiple lamellar elements is provided. The lamellar element is implemented for a roller blind device, which can be guided in a rail system like a folding blind, having a lamellar body and having at least two guide elements, which are situated on diametrically opposing sides of the lamellar body and extend in the transverse direction of the lamellar element, for holding and/or guiding in at least one guide groove of the rail system, at least one first guide element having at least one extension differing in the transverse direction in relation to at least one second guide element.

Abstract: The present invention is a device that provides protection for a window from exterior fires which might ignite combustibles by radiation through the glass and/or break the glass and allow direct flame impingement, and also operates as a non-solid shutter or shade allowing privacy and shade. The shutter consists of metal or other noncombustible screen, mesh or slats spaced or pierced so that they allow some light to penetrate for shade control but protect the window glass from heat radiation and flying debris created by an external firestorm. The shutter can be raised and lowered manually, or with mechanical assistance, as by means of a chain lift or other roll-up/down mechanism for shade and privacy control, but will drop (close) automatically when released by a fusible link of the appropriate temperature setting to provide the fire protection.

Abstract: A mechanical link is provided to lessen or eliminate air infiltration between a topmost lamella of a rollup door and the lintel of the doorway. The link is deployed in an unfolded configuration to support the topmost lamella against deflection caused by application of a force perpendicular to the plane of the door. The link components are folded into a storage position upon rolling up of the door upon a series of take-up discs.

Abstract: A high-speed industrial roller door includes a door leaf that is guided in lateral guides and a drive that acts on the door leaf to displace the latter from an open position into a closed position and vice versa. The door leaf is held in the open position so that adjacent areas of the door leaf are not in contact with one another, in a spiral section of the lateral guides located in the vicinity of the door lintel. The roller door also includes a weight compensation device. The drive has two extension arms that are coupled via joints to the lintel end of the door leaf, said arms being situated at a distance from one another across the door width and being synchronously pivoted about a pivoting axis in a central area of the spiral section. The distance between the coupling points of the extension arms on the door leaf and the pivoting axis of the extension arms can be varied.

Abstract: The invention relates to a lifting door assembly comprising a lifting door, in particular a fast-moving industrial door, having a door leaf which in the closed condition of the lifting door covers a door aperture, and a door lintel sealing device disposed in the area of a door lintel and mounted so as to produce a sealing effect between the door leaf and the door lintel in a sealing position when the lifting door is in the closed condition. The lifting door assembly is characterized in that the door leaf is guided laterally such that in the open position, it is wound free of contact in the area of a door lintel, and in that in the sealing position, the door lintel sealing device rests on a horizontal lateral edge surface of the door leaf adjacent the door lintel. The invention further relates to such a door lintel sealing device. The invention allows to improve a lifting door assembly such that particularly reliable sealing may be obtained with it in the area of the door lintel.

Abstract: A screen includes: a screen base body, wherein the screen base body includes a plurality of substrates, each of the substrates has a sheet part and a connecting part provided at least one of the surfaces of the sheet part, the connecting part of one of the substrates is detachably connected with the connecting part of the other substrate, and when the screen is used the screen base body is produced by connecting the connecting parts of the respective substrates such that the substrates can be combined.

Abstract: A window shade that consists of several louvers positioned one above the other. Each of the louvers is, in fact, composed of two identical halves that are connected to one another by means of a cylindrical rod that serves as an axis and a connector between the two halves of the louver. A window shade that is composed of louvers, each of which consists of two parts positioned at varying angles to each other, such that the angle between the two parts of the louver can be changed and the shade can be fully closed, fully opened or in a position that lets air, but not light, into the room.

Abstract: A ladder drum for adjusting and regulating the angular orientation and closure of horizontal slats of a venetian blind, of the type incorporating ladder cords or tape ladders, having a polygonal profiled structure comprising a series of planar sidewalls defining a substantially hollow interior. The number of sidewalls defining the polygonal structure is greater than four sidewalls, and less than or equal to twelve sidewalls, with each adjacent plane sidewall having an internal angular orientation in the range of 90° to 150°. To enhance the uniform closure of the slats of a horizontal blind, the polygonal ladder drum is more preferably in the form of an uneven hexagon that is formed from injection molded plastics. The opposing top and bottom sidewalls are greater in dimension than the mediate sidewalls, and have attachment means to insert various widths of ladder tape. The mediate sidewalls have at least two opposing access slots to insert and retain ladder cords in a counter balanced relation.

Abstract: A shutter for protecting an opening. The shutter comprising a plurality of horizontal curtain slats for covering the opening, wherein horizontal refers to a direction when viewing slats from a front surface, and wherein the curtain slats hang freely from a upper region of the opening; an upper transition slat movably affixed to a lower end of a first curtain slat; a lower transition slat movably affixed to an upper end of a second curtain slat; and a horizontal reinforcing member comprising at least an upper and a lower reinforcing slat, wherein the upper reinforcing slat is rotatably affixed to a lower end of the first transition slat and the lower reinforcing slat is rotatably affixed to an upper end of the second transition slat, and wherein the upper and lower reinforcing slats are rotatably joined.

Abstract: A weight compensation device for a lifting door, includes a spring element and a tensile element, which can be wound onto or unwound from a winding device in such a way that the spring element achieves its greatest pre-tension when the door leaf is in the closed position and is essentially tension-free when the door leaf is in the open position. The tensile element is narrower at the end facing the winding device than at the end facing the spring element and the winding device includes a guide device, which is used to wind the tensile element in such a way that the wound layers lie adjacent to one another without making contact. To achieve this, the guide faces around the perimeter of the guide device have a continuously increasing radius in the winding direction. This enables the provision of a weight compensation device that achieves the torques required for effective weight compensation by means of a simple construction.

Abstract: A rolling shutter and a slat for use in a rolling shutter are provided. The slat comprises an engaging track located at a first edge and a receptacle track located at a second edge. Illustratively, the engaging track has a hook-shaped profile and is disposed at an acute angle relative to an adjacent part of the body portion, is disposed at an angle of less than 180° relative to a vertical axis of the slat, or has a hook-shaped profile that curves for more than 180°, and the receptacle track comprises a lip and a guard defining a space adapted to receive therein an engaging track of an adjacent slat.

Abstract: The present invention comprises two sheets of canvas fabric or curtains and means for rolling up vertical strips or bands connected to intermediate crosspieces that move along guides when the strips are taken up. The crosspieces have a hollow cross section with an upper ridge and a lower ridge with holes for the strips to pass through. The crosspieces have, on the outer lateral faces, at least one groove for the fastening, by means of a bead, of bands for joining to the adjacent curtain. The inner faces of the crosspiece have one or more rounded longitudinal projections for guiding the displacement strips. The crosspieces comprise shock-proof elastic element arranged on the upper and/or lower ridge.

Abstract: A member (4) for a Venetian-blind action roller blind, comprises a bar (8, 8?, 8?) and a slat (9, 9?, 9?) which are connected together at a first hinge (7) in such a way as to be able to pivot, and which have respective outer hooks (5, 6; 5?, 6?; 5?, 6?), the outer hook (5, 5?, 5?) of the slat (9, 9?, 9?) being arranged to form, with the outer hook (6, 6?, 6?) of the bar (8, 8?, 8?) of an identical second member (4), a second hinge. The slat also carries two inner hooks (10, 11; 10?, 11?, 10?, 11?) curved in opposite respective directions of which the first (10, 10?, 10?) engages in a recess (15) in an inner hook (12, 12?, 12?) of the bar and the second (11, 11?, 11?) extends round an outer side of the inner hook (12, 12?, 12?) of the bar. The inner hooks (10, 11; 10?, 11?; 10?, 11?) of the slat (9, 9?, 9?) have arcuate, concentric surfaces whose common centre is an axis of pivot (27, 27?, 27?) of the first hinge (7).

Abstract: The invention relates to a shutter for a roller shutter assembly, the shutter comprising a series of shutter panels (10) and a plurality of connecting arms (20). The shutter panels (10) each have an upper edge (11) and a lower edge (12), a first face (13) and a second face (14), and the first faces (18) all face to a first side of the shutter and the second faces (14) all face to an opposite second side of the shutter. The connecting arms (20) each have a lower edge (21) and an upper edge (22), a lower one of two adjacent shutter panels in the series is pivotally connected to a higher one of the two adjacent shutter panels by at least two of the connecting arms (20). The lower edge (21) of each of the at least two connecting arms (20) is pivotally connected to an upper pivotal connection on the first face (13) of the lower of the two adjacent shutter panels, the upper pivotal connection being spaced below the upper edge of the lower shutter panel (10).

Abstract: An improvement in a rolling shutter assembly for covering an opening of a structure having an external protective surface, an underlying support structure and a subsurface disposed therebetween. The rolling shutter assembly includes a shutter housing, a shutter support member rotatably disposed within the shutter housing, a shutter coupled to the shutter support member, and a pair of side tracks. The improvement includes a plurality of dowels and corresponding openings through the external protective surface configured to receive the dowels. The dowels are disposed between the subsurface of the wall and the side tracks when the rolling shutter assembly is installed to minimize the portion of the external protective surface that is removed to accommodate the installation of the shutter assembly.

Abstract: The invention relates to roller blind slats having a profile which is shaped by flat sheet metal in a rolling step. A single-pieced roller blind body is associated with the roller blind slats. The roller blind body is formed with a slot on the underside thereof and a hooked strip is provided on the top edge thereof. The slot part is approximately 20% on the total surface of the roller blind slats.

Abstract: A door system includes a flexible corrugated closure member guided between door open and closed positions in spaced apart opposed vertical and horizontal sets of guide tracks and further guided by transition guide wheels mounted on an enclosure frame for guiding the closure member between the sets of guide tracks. The transition guide wheels are supported for movement between working and non-working positions to facilitate storage or shipping the door system or an enclosure unit including the door system, as a substantially planar stack of wall, ceiling and floor members forming the enclosure.

Abstract: A retractable cover for architectural openings having collapsible vanes includes a support structure in the form of a sheet of material, monofilaments, tapes, ribbons, cords, or the like, supporting an upper edge of a plurality of vertically spaced, horizontally extending vanes with the lower edges of the vanes in most embodiments of the invention being connected to operating elements adapted to raise the lower edges of each vane toward the upper edges to define openings or gaps between the vanes through which vision and light can pass in an open condition of the covering. Variations of the covering do not require movement of a lower edge of a vane relative to an upper edge but simply movement of some vanes relative to other vanes. The vanes can be made of materials having different flexibilities and where more rigid materials are used, creased fold lines can be established for desired operability.

Abstract: The invention relates to a shutter for a roller shutter assembly, the shutter comprising a series of shutter panels (10) and a plurality of connecting arms (20). The shutter panels (10) each have an upper edge (11) and a lower edge (12), a first face (13) and a second face (14), and the first faces (18) all face to a first side of the shutter and the second faces (14) all face to an opposite second side of the shutter. The connecting arms (20) each have a lower edge (21) and an upper edge (22), a lower one of two adjacent shutter panels in the series is pivotally connected to a higher one of the two adjacent shutter panels by at least two of the connecting arms (20). The lower edge (21) of each of the at least two connecting arms (20) is pivotally connected to an upper pivotal connection on the first face (13) of the lower of the two adjacent shutter panels, the upper pivotal connection being spaced below the upper edge of the lower shutter panel (10).

Abstract: The invention relates to improvements in a roll-up shutter. More particularly, the invention provides an electrically-driven shutter which can be electrically deployed or retracted, and the slats may be electrically tilted for ventilation or vertically closed for maximum security, all by use of a single electric motor.

Abstract: A roll-out sheet of construction material has a plurality of slats, each with a shelf with a generally upward facing surface and a ledge with a generally downwardly facing surface. The plurality of slats are adjacent one another so that the ledge of one slat underlies the shelf of an adjacent slat. A pivoting assembly disposed on each of the plurality of slat allows the slats to articulate relative to one another within a defined range of vertical angles. The slats may have a longitudinal opening at least partially through, which is optionally filled with thermal and/or sound insulation, and/or load-bearing filler. The openings can also include a rib or support extending across the opening and bracing one side wall of the slat against the other. A securing tab can extend outward from one or more slats, shaped as a hoop, or having a through opening. When deployed, the roll-out sheet may be flat or have some angle or curvature.

Abstract: An elevator door system includes a motor rotating a vertical reel, and an elevator door. The door can be formed of a plurality of vertically aligned rigid panels or can be a sheet of material which is rigid or reinforced in the vertical direction or can have any other appropriate form making it suitable for being wound upon and unwound from the reel. The door is mounted to a flexible force transmission member provided along an entire width of the door and interconnected to the reel. Accordingly, the forces generated by the motor for opening and closing the door are substantially transmitted through the transmission member rather than being imparted onto the door itself. Hence, in use the strain on the door is greatly reduced and therefore the quantity of material used for the door and consequently its cost and mass can be reduced without deteriorating performance.

Abstract: A shutter slat assembly for a storm shutter, the slat assembly including an elongated horizontally extending shutter slat having longitudinally extending formed edges configured to slidably, interlockingly connect with the next adjacent slat for limited pivotal movement between adjacent connected slats sufficient for rolled-up storage of the storm shutter. Each slat has a central port formed therethrough for viewing and light transmission through the port. An elongated transparent panel preferably having a cross section similar to that of the slat includes enlarged edge portions configured and spaced for dependent slidable engagement between and within inwardly facing grooves formed inwardly adjacent to the edges. The transparent panel covers the port while allowing a person to obtain a view and permit light transmission therethrough.

Abstract: A method and a system for producing a window shade having a real natural material printed image coated thereon. A real natural material is scanned and the data of the image is stored in a computer which generates an image of the scanned real natural material. That image is duplicated a plurality of times by the use of the computer and the images are assembled in a predetermined arrangement to produce a composite image which is then enhanced using photo-enhancing software. The enhanced composite image is then printed by the use of a colored ink printing machine on material to form the window shade. Preferably, but not exclusively, the material is constituted by slats of a louvered blind or a fabric of a roller blind.

Abstract: A portable roll up window blind has an adjustable length and is removably mountable within the frame of a window. The blind has shell housing of an adjustable length and a telescopic winding core mounted between two end plates of the shell housing. One of the end plate is slidable and adjustable by a wedging means for pressing against the adjacent side wall of the window frame so that the two end plates cooperate with one another to secure the blind at a selected position in the window frame. The window blind panels are wound on the winding core in an overlapping manner. The winding core has one end engage with a round support pin located on the inner surface of the one end plate, and the other end engaged with a rotary shaft having a multi-sided cross sectional shape. The rotary shaft is rotatable by a pull chain for raising or lowering the window blind panels.

Abstract: A combination garage door and roll-up curtain system that allows a flexible curtain to be lowered when the garage door is in a raised position. The system preferably comprises an automated garage door assembly wherein the drive mechanism is mounted to a bracket mounted in turn to the inside wall above the garage opening upper margin. The system preferably further comprises an automated roll-up curtain assembly having a rotatable rod mounted above the garage opening upper margin between the bracket and the inside wall. The rotatable rod has a flexible curtain wound thereabout wherein the first end of the curtain is affixed to the rod and the second end of the curtain is secured along its lateral margins within tracks mounted adjacent the garage opening lateral margins. The second end of the curtain preferably has a weighted member attached thereto to urge the curtain toward the garage opening lower margin and to keep the curtain taut.

Abstract: An end retention system for a rolling shutter system is provided. The end retention system comprises a fastener that has a head and a shaft, a washer and a spacer. The aperture of the washer is greater than that of the shaft. The shaft is configured for insertion into a shutter slat. A guide track is provided with retention fins spaced apart a distance that is less than the outer diameter of the washer. The guide may include a channel partially bounded by the retention fins and having a width that is greater than the outer diameter of the washer. The washer is located in the channel, and is retained near the slat by the head of and the fastener. An end retention system may have a rigid spacer, or a compressible spacer that is a resilient member located between the head of the fastener and the washer.

Abstract: A combination garage door and roll-up curtain system that allows a flexible curtain to be lowered when the garage door is in a raised position. The system preferably comprises an automated garage door assembly wherein the drive mechanism is mounted to a bracket mounted in turn to the inside wall above the garage opening upper margin. The system preferably further comprises an automated roll-up curtain assembly having a rotatable rod mounted above the garage opening upper margin between the bracket and the inside wall. The rotatable rod has a flexible curtain wound thereabout wherein the first end of the curtain is affixed to the rod and the second end of the curtain is secured along its lateral margins within tracks mounted adjacent the garage opening lateral margins. The second end of the curtain preferably has a weighted member attached thereto to urge the curtain toward the garage opening lower margin and to keep the curtain taut.

Abstract: A mechanism for guiding roll up doors made from a foldable sheet. A longitudinally extending wall of the foldable sheet is secured to a fixed structure and two longitudinally extending lateral walls extend perpendicularly to form another two reversible folds resulting in two longitudinally extending inner walls at a spaced apart and parallel relationship with the two lateral walls. From one of these inner walls, a longitudinal wind bar extends at a predetermined cooperative angle. Upon the application of a wind load to the door slats, the load is transmitted to the foldable sheet guiding assembly from the slats directly and through the wind lock assembly through at least four contact points. The laterally articulated door slats include longitudinal hook portions or wind lock assemblies that slidably coact with the wind bar to keep the slat in place.

Abstract: Which has the following essential elements: A drive shaft (1) joined to the rolling drum (23) of a blind (21), joined by means of a first freewheel mechanism (2) with a drive cylinder (4) which has a freeing sector (5). A cogged wheel (17) which has protuberances (18) into which fit the relevant extensions (19) of the slats (20) of the blind (21), joined via a second freewheel mechanism (15) with a blocking sector (26). A brake cylinder (7) with teeth (27) housing a brake spring (9) whose ends form stops (10), with the blocking sector (25) acting on the stops (10) in the direction to increase the apparent diameter of the brake spring (9) and the freeing sector (5) in the direction to reduce its apparent diameter. Various ratchets (28) that can lock against the teeth (27) as a function of the relative position of a transmission crown (6) on which they are articulated with respect to the drive cylinder (4).