Abstract: A skirt assembly adapted for use on a motor vehicle including a first panel that is pivotally attached to the motor vehicle, a second panel that is pivotally attached to the first panel, a first rod that is pivotally attached to the first panel, a second rod that is pivotally attached to the second panel, a first actuator that is pivotally attached to the motor vehicle and pivotally attached to the first panel and the second panel. The first actuator is adapted to move between a retracted position and an extended position, and the skirt assembly is adapted to be moved between an open position and a closed position when the first actuator moves between the extended position and the retracted position.

Abstract: A foldable roof, including a plurality of elongated plates, for being disposed one aside the other, and a plurality of supporting members each for supporting one of the elongated plates, where each two adjacent supporting members of the supporting members are pivotally connected to one another, thereby allowing deploying and folding the elongated plates, and for each of the plates and its supporting member, gravity disposition elements configured to allow perpendicular displacement between the plate and the supporting member while limiting parallel displacement therebetween, thereby at any state of the foldable roof except for a folded state, each plate is connected to the supporting member thereof by gravity only.

Abstract: A structural panel includes a shell having spaced first and second exterior panels and frame members adjacent edges of the panels, and at least one polymeric sheet disposed between the exterior panels and bonded to an adjacent exterior panel. The polymeric sheet is made of a thermoplastic material and has a plurality of openings through its thickness spaced apart by flat wall portions of the polymeric sheet. Stiffeners are disposed between the polymeric sheets and are secured by polymeric end caps. The end caps are made of a thermoplastic material and have a plurality of openings through their thickness for receiving the stiffeners. A foam insulation material fills substantially all the space between the polymeric sheets, stiffeners, and frame members in the shell interior. At least one blast- or ballistic-resistant core layer may be disposed adjacent the at least one polymeric sheet.

Abstract: The invention relates to a security grille system (1) for securing a passage at least partly. The security grille (2) is arranged to be brought from an extended state, in which the grille (2) can block the passage at least partly, into a retracted state, in which at least a part of the previously blocked part of the passage is unblocked. The security grille (2) comprises a multiplicity of bars (4), preferably substantially horizontally extending bars (4), connected by means of multiple elongated connecting elements for interconnecting respective bars (4). The security grille system (1) further comprises a chain connected to the grille (2), preferably a chain being flexible in only one dimension and/or being roller chain, and at least one chain limiting (28) member for at least locally limiting movement of the chain (19), e.g.

Abstract: The disclosed embodiments relate to an aircraft having an interior cabin door with a retractable header. Accordingly to non-limiting embodiments, an interior cabin door for an aircraft includes a door panel having an opening in a top portion thereof. A retractable header configured to retract into the opening in the door panel as the door panel moves toward an open position. As the door panel moves toward a closed position, a lifting system is configured to raise the retractable header to interface with the ceiling of the aircraft. The lifting system includes a four-bar mechanism, a cable and pulley system and a biasing member configured to upwardly bias the retractable header.

Abstract: An adjustable safety to has a first panel, a second panel and a fastening device. The first panel has a screw hole formed therein. The second panel has a horizon formed therethrough. The second panel partially overlaps the first panel and is slidable laterally elative to the first panel. The fastening device is used to secure the second panel to the first panel. The fastening device includes a carriage and a fastener. The carriage is slidably mounted along the slot of the second panel. The carriage has a through hole formed therein. The fastener has a threaded shank extending through the through hole in the carriage and the slot in the second panel, and selectively engaging and disengaging the screw hole in the first panel. Therefore, the safety gate is expandable and retractable to provide a variable width to suit different conditions and requirements.

Abstract: A paneled partition assembly is disclosed that can be used to selectively separate a first space from a second space. The paneled partition assembly can cover an opening when in a closed and extended position and uncover the opening when in an opened and retracted position. The paneled partition assembly can include a first panel and a second panel configured such that rotation of a handle on the first panel causes linear movement of the second panel. The partition assembly can include a pair of mating assemblies that selectively move from open and retracted positions on opposite sides of an opening to closed and extended positions in which opposite leading edges abut one another.

Abstract: An assembly comprised of at least one fixed panel and at least two moveable panels is provided. The moveable panels are capable of being controllably shifted relative both to each other and to the fixed panel such that first and second aligned and non-aligned positions can be achieved. The assembly is further comprised of two or more drive links which are, in turn, comprised of a center pivot which engages with the fixed panel and two or more outer pivots which engage with the movable panels.

Abstract: A sunshade for a vehicle includes a pair of guide rails extended at a side edge of a light passing portion provided on a vehicle roof, the guide rails arranged opposite to each other, plural extending portions formed on each of the guide rails and extending towards the opposite guide rail, the extending portions defining slide recessed grooves, a sliding member supported by the extending portions and slidably provided in each of the slide recessed grooves, an engaging portion formed on said each sliding member, and plural shade panels slidably supported in the slide recessed grooves, respectively, via the sliding member, the shade panels being configured to interoperate each other by an engagement of each of the engaging portions during at least one of an opening operation and a closing operation of the sunshade.

Abstract: A horizontally expandable, portable wall partition is incrementally expandable between a closed position and an open position. The portable wall partition consists of a number of upright panel members that are sidewardly adjacent and vertically parallel to one another. These panel members are interconnected by connectors that allow the panels to slide past one another from the closed position to the expanded position. The partition may also have non-sliding end members that provide stability to the partition. The partition may also have nested panels.

Abstract: A sliding panel includes multiple connecting/adjacent carrier tracks such as two/three/four carrier tracks while connectors of each carrier track are disposed in opposite directions or at intervals. Thus the multiple connecting/adjacent carrier tracks slide in parallel under the same channel. Moreover, the positions of each connector on top surface of respective carrier track are in alternating arrangement so as to allow runners of multiple connecting/adjacent carrier tracks being mounted inside the same channel simultaneously. The runners of the connecting/adjacent carrier tracks move inside the channel of a rail at the same time and the connecting/adjacent carrier tracks slide in parallel under the same channel. Therefore, the number of channels of the rail is decreased and the amount of material used for producing the rail is reduced. Furthermore, the rail can be designed to have two-step inner and outer rails for adjusting length of the rail.

Abstract: A vehicle sunshade device is provided with guide rails arranged on both sides of an opening section provided on a vehicle roof and having guide grooves extending in a front-rear direction, a plurality of sunshade panels having sliders slidable along the guide grooves, and guide mechanisms for guiding the sliders of at least a rearmost sunshade panel of the sunshade panels upward or downward from the guide grooves in a transition from a spread-out state to a stored state. An elastic member is further provided on the vehicle roof and presses the rearmost sunshade panel on a front side sunshade panel, which is ahead of the rearmost sunshade panel, when the sliders of the rearmost sunshade panel enter the guide mechanisms.

Abstract: A shade apparatus for a vehicle includes a guide rail mechanism adapted to be arranged along a side portion of an inner periphery of an opening formed in an interior ceiling member of the vehicle, a shade panel mechanism slidably supported by the guide rail mechanism, configured to open and close the opening of the interior ceiling member, and including first and second shade panels, an engaging member arranged at one of the first and second shade panels, and an elastic member arranged at the other of the first and second shade panels and including a fixing portion and a deformable portion. The first and second shade panels move as a unit in the moving direction after one of the first and second shade panels moves relative to the other of the first and second shade panels in the moving direction and the engaging member engages with the elastic member.

Abstract: A novel telescopic cover of the present invention has a plurality of protection covers having top plates and vertically-suspended plates vertically suspended from the top plates, and being arranged so as to cover a guiding portion of a machining tool or the like in a freely stretchable manner between every adjacent pair of the protection covers, while being linked with each other by a linking mechanism which is configured by a plurality of linking elements linked so as to be rotatable around connecting shafts, wherein the telescopic cover has a plurality of guide rails provided to the plurality of protection covers, each having a guide groove which has one and the other guiding surfaces opposed with each other, in the direction normal to the direction of stretching and shrinkage of the entire portion of the protection covers; and a plurality of rolling elements arranged in guide groove, so as to be freely rotatable around each connecting shaft which extends in the depth-wise direction of the guide groove.

Abstract: A multi-link telescopic cover includes a cover assembly having a plurality of shield plates fitted in sequence to be extended and telescoped along a telescopic orientation and a link assembly having a set of parallel first linkages, a set of parallel second linkages and four short linkages. The first linkages and the second linkages are crosswise and are tilted relative to the telescopic orientation of the cover assembly. A number of the first linkages is identical to that of the second linkage, and a number of the shield plates less the number of the first linkages is two. Each of the first linkages and the second linkages are connected to three of the continuous shield plates respectively and the short linkages are connected to the first and second shield plates from opposite ends of the cover assembly.

Abstract: A horizontally expandable, portable wall partition is incrementally expandable between a closed position and an open position. The portable wall partition consists of a number of upright panel members that are sidewardly adjacent and vertically parallel to one another. These panel members are interconnected by connectors that allow the panels to slide past one another from the closed position to the expanaded position. The partition may also have non-sliding end members that provide stability to the partition. The partition may also have nested panels.

Abstract: While a bending ability is maintained, it is possible to provide an outer appearance which is not made possible in the past. A door shutter includes a main body on a design surface side which is bent in a width direction through thin parts, and plural block pieces disposed between the thin parts on an underside of the main body, wherein an opening on a device side is opened or closed by sliding along a guide groove on the device side. On the main body, the thin parts are formed as a plane surface, and parts overlapping with the block pieces are formed in an upwardly convex curved shape.

Abstract: A protective cover for the work area of a machine tool having a plurality of frame-like segments disposed so as to be limitedly shiftable within each other and respectively provided with a sealing strip on at least one edge. A plurality of connecting elements formed as slidable lattice grates connect the frame-like segments, the respective link pins of the slidable lattice grates being fixed to a respective rear segment of a segment. For simplified assembly and removal of the protective cover the slidable lattice grates are detachably fixed to the frame-like segments.

Abstract: A vertical blind includes a headrail, a fixing bracket, a plurality of juxtaposed movable brackets, a drive bracket, a plurality of driven blocks, a plurality of drive blocks, a plurality of mounting seats, a plurality of shades, a pull cord unit, and a positioning unit. Thus, the vertical blind contains multiple movable brackets movable between the fixing bracket and the drive bracket, so that the length of the vertical blind is expanded freely to fit the size of the window, thereby enhancing the versatility of the vertical blind. In addition, the mounting seats have different lengths corresponding to the positions of the fixing bracket and the movable brackets, so that the movable brackets are movable smoothly without interfering with each other, thereby facilitating operation of the vertical blind.

Abstract: A shade for preventing rain from entering an open double hung window of any width. A pair of side panels extend rearwardly from opposite ends of a front panel so as to form an assembly for attaching to the double hung window by an apparatus. Each side panel is right triangular-shaped. The front panel is length adjustable by being a pair of telescoping panels. The apparatus includes hook and loop fasteners, a magnetic tape, or a channel affixed to the double hung window receiving a depending lip of the front panel.

Abstract: A machine tool installation (1) for the processing of workpieces includes encompasses a work area (4) for the machining of workpieces and contains a workpiece support (13), a work area enclosure (3) featuring a gate (7) and at least one corresponding door segment (6/1, 6/2, 6/3) which can be moved in the horizontal direction between open and closed positions and is supported on the substructure of the machine installation (1) in horizontally movable fashion. Provided above the substructure of the machine tool installation (1), and attached solely to the workpiece support (13) is at least one stationary guide element (14, 15) for the door segments (6/1, 6/2, 6/3) and extending over at least part of the width of the gate.

Abstract: A multi-panel sliding door includes a main drive to directly move a leading door panel and includes an auxiliary drive to smoothly accelerate a lagging door panel. In some embodiments, the auxiliary drive includes a hanging weight that urges the lagging panel to its open position. In another embodiment, the auxiliary drive includes a belt and sheave arrangement attached to the lagging panel. The leading panel is coupled to move the belt around two sheaves as the leading panel moves relative to the lagging one. The belt's movement is limited by a bumper that is attached to one point on the belt and is constrained to travel between one of the sheaves and a fixed stop attached to a wall or the track. As the main drive starts moving the leading panel to its open position, the relative movement between the two panels causes the belt to move the bumper up against the fixed stop. From there, continued opening movement of the leading panel continues rotating the belt around the sheaves.

Abstract: A dust cover comprises a plurality of shied plates which are equal in shape and progressively reduced in size. The shield plates are joined together such that they expand and retract along an axial direction; a linking device formed of a plurality of link rod units which have two rod members equal in length. The two rod members are pivoted together at the midpoint such that two ends of the two rod members form a pair of opening-closing arms. Two arms of each one end of each link rod unit are pivoted with two arms of other link rod unit to form two pivoting points pivoted in the lower side of the same shield plate.

Abstract: An arrangement employing first and second upright partitions positioned in laterally overlapping relationship and connected along upper and lower edges by a slide arrangement permitting one partition to be manually moved lengthwise thereof. The slide arrangement includes slide rails fixed to each partition adjacent upper and lower edges thereof. Slide brackets are fixed adjacent upper and lower edges of each partition and have sidewardly cantilevered portions which slidably engage within channels of the slide rail on the laterally adjacent partition. Removable top caps mount over the upper slide rails.

Abstract: A device for damping movement of a telescopic guard including a plurality of box-shaped cover elements which slide inside each other in a defined direction. A plurality of leaf springs respectively connect the rear edges of the box-shaped elements to the rear edges of adjacent box-shaped elements. A guide rod is connected to each box-shaped element and is slidably connected to the adjacent box-shaped element. The guide rod slides in a friction element attached to an adjacent box-shaped element. Two circular bellows are fitted around the rod.

Abstract: This invention is a dust-proof protection cover with connecting rods. It includes several protecting cover boards in the same shape with different sizes. The sizes of protecting cover boards are decreasing and their connection will form a structure that can expand and contract along the same axis. On the bottom board of each protecting cover board, there is a sliding trough. In addition, there is a linking device is made of many connection shafts. All these connection shafts will form a device with serial protection cover that can expand and contract.

Abstract: This invention is a dust-proof protection cover with connecting rods. It includes several protecting cover boards in the same shape with different sizes so that they are slidably engaged to each other. The sizes of protecting cover boards are decreasing and their connection will form a structure that can expand and contract along the same axis. On the bottom board of each protecting cover board, there is a sliding trough. In addition, there is a linking device is made of many connection shafts. All these connection shafts will form a device with serial protection cover that can expand and contract.

Abstract: The present invention relates to a protective cover for at least one working part of a machine tool or similar machine, the machine part moving in a linear direction and the cover being designed to follow its movements so as to keep the corresponding zone inside the machine protected. The cover comprises a set of overlapping covering elements in the form of a first covering element that can be connected to the machine at the zone to be protected and a plurality of covering elements that move relative to each other and relative to the first covering element in the same linear direction as the working part of the machine moves. Each covering element has an opening through which a portion of the working machine part or its support can protrude outwards, the opening in the first covering element forming an area to be covered by the remaining covering elements, and the movable covering elements decreasing in size going from the inside to the outside.

Abstract: A multi-panel sliding door includes a main drive to directly move a leading door panel and includes an auxiliary drive to smoothly accelerate a lagging door panel. In some embodiments, the auxiliary drive includes a hanging weight that urges the lagging panel to its open position. In another embodiment, the auxiliary drive includes a belt and sheave arrangement attached to the lagging panel. The leading panel is coupled to move the belt around two sheaves as the leading panel moves relative to the lagging one. The belt's movement is limited by a bumper that is attached to one point on the belt and is constrained to travel between one of the sheaves and a fixed stop attached to a wall or the track. As the main drive starts moving the leading panel to its open position, the relative movement between the two panels causes the belt to move the bumper up against the fixed stop. From there, continued opening movement of the leading panel continues rotating the belt around the sheaves.

Abstract: An adjustable gate including a frame having opposing vertical stiles each with a vertical groove therein, an upper gate section and a lower gate section. The upper gate section can be lowered such that only an adult dog may pass through the gate while preventing the passage of puppies. The upper gate section includes an upper crossbar with ends which slide within the vertical grooves of the stiles. Both the upper gate section and the lower gate section have a plurality of evenly spaced vertical slats. The slats of the upper gate section telescopingly or slidingly engage the slats of the lower gate section when the upper gate section is lowered.

Abstract: A roof structure for enclosures for swimming pools, spas, or patios and the like includes a plurality of laterally spaced angled roof beams each having a plurality of vertically spaced tracks on facing sides of adjacent beams for sliding receipt of one roof panel in each opposed set of tracks. The trailing ends of each higher panel is releasably latched to the leading end of each succeeding lower panel within their respective tracks, whereby the succeeding lower panels can be successively used to push or pull the preceding higher panels by hand along their respective tracks during assembly and removal of the panels from the roof structure.

Abstract: A telescoping protective cowling for removing part of a machine tool. The device includes at least three elements consisting of panels and one of which is stationary or relative to the frame and provided with a window with inside edges restricting the freedom of movement of a moving part. The second panel is slidable relative to the first panel along two axes, is longer than the window of the first panel and is provided with a window within which the moving part is free to move. The third panel is movable and substantially larger than the window in the first panel and receives the moving part in its central portion. As a result, the movements of the moving part in the plane of the two axes in the window in the first panel means that the second panel has a proportional mobility and is thus able to fill the opening of the window in the first panel after it has been left clear by the third panel following the movements of the moving part.

Abstract: Protective coverings are provided for glass windows and the like. The protective coverings comprise impact and puncture resistant protective panels formed from strand material which includes reinforcing fibers and polymeric material.

Abstract: The present invention concerns a protective cover for the sliding guides of a mobile machine tool part and comprises a set of rigid panels which overlap and are guided in such a way that they slide parallel with the machine tool guides, and panel pulling means, designed so that, when a first, driven panel is moved, they allow the subsequent panels in the set to be pulled. The pulling means comprise a pulling element, attached to the first panel, parallel with a direction transversal to the set of planes upon which the subsequent panels in the set lie; and contact faces, on the subsequent panels, opposite the pulling element. The contact faces are positioned in the path of the pulling element at different positions, longitudinal to the guides, so that each is intercepted by the pulling element at a different time as the element moves, thus allowing all of the subsequent panels in the set to be pulled.

Abstract: The invention relates to a scraper arrangement for attachment to at least one of at least two machine parts which are movable relative to one other, particularly for protection of guideways in machine tools. In this case a scraper strip made from elastically deformable material is replaceably retained on a rigid carrier strip which for its part is releasably connected to a machine part. With a view to a reliable attachment and quick replacement of carrier strip and scraper strip, at least one approximately strip-shaped intermediate carrier can be firmly attached to one machine part and with the aid of at least one C-shaped clamp can be replaceably fixed on a front end edge region of the machine part.

Abstract: A barrier including a plurality of elongate construction elements extending along a first axis and spaced from each other along a second axis substantially perpendicular to the first axis, the construction elements being telescopically extensible along the first axis, and an end of each construction element being formed with a tenon, the tenon being formed with a hole therein, at least one rail extending along the second axis, a plurality of apertures being formed through a thickness of the at least one rail and spaced from each other in correspondence with the spaced construction elements, each tenon mating with and protruding through a corresponding one of the apertures such that the construction element abuts the at least one rail and the hole of the tenon protrudes beyond the thickness of the at least one rail, and a plurality of fasteners, each fastener mating with a corresponding one of the holes so as to attach each construction element with the at least one rail substantially fixedly along the first a

Abstract: An adjustable and pivotable window guard to be placed above a window inside a structure. The window guard provides an attractive appearance and excellent security. Hinge plates that have upwardly directed hinge tubes located thereon are secured on the inside wall proximal a window. A first window guard bracket having cooperating hinge bores is then placed on the hinge tubes so that it can pivot freely. The rectangular main central window guard is then placed over protruding members on the first window guard bracket and a second window guard bracket, also with similar protruding members, is inserted into the main central window guard on the opposite side from the first window guard bracket. Thus, all three of these elements are slidable horizontally in relationship to one another, which allows the user to adapt the device to variously sized windows.

Abstract: A telescopic sun screen assembly for removably mounting to the interior of an automobile, such as the sun visor thereof. The assembly includes three telescopically arranged members, where a first member comprises a bracket for slidably receiving a second panel member, which in turn slidably receives the third panel member. The second panel member includes an opaque face, while the third panel member includes two different and distinct areas of translucency such that the user thereof may, by sliding the members relative to one another, determine the degree of sun protection desired.

Abstract: A two-section portable gate carries a rotatable control handle at an upper surface thereof for purposes of installation and removal of the gate in a doorway. When the handle is rotated to an extended state, the two sections of the gate can be moved relative to one another to fill the opening in the doorway. When the handle is moved to an intermediate position, the gate sections are locked together and further relative movement is not possible. When the handle is moved to a closed or locked position adjacent to an upper surface of the gate, the gate sections are forced apart a predetermined distance thereby creating normal forces, and in turn frictional forces, which lock the gate into position in the doorway and resist its removal. Spring loaded bumpers can be used on edges of the gate sections to take into account non-square openings.

Abstract: A new Bathtub Safety Guard for preventing a child from accessing or contacting the spigot or water control knobs provided in a bathtub. The device includes a first gate section and a second gate section slidably attached to the first gate section, wherein the first and second gate sections each have an upper portion and a lower portion whereby the effective combined width of the first arid second gate sections can be varied such that the lower portions fit within the width of a bathtub. The upper portions of the first and second gate sections extend over the sides of the bathtub. The upper portion of the first gate section abuts an enclosure wall provided on the back side of the bathtub. A plurality of suction cups are provided on the edges of the first and second gate sections for releasably attaching the first and second gate sections to the bathtub and the enclosure wall.

Abstract: A closure system includes a plurality of closure panels adapted to be moved between deployed and stowed positions. All on a pair of carrier tracks on opposite side of a building opening. The actuator in the deployed position have abutting top and bottom edges and parallel side surface that span across the building opening. The actuators in the stowed position have abutting in inner and outer side surfaces in parallel top edges and parallel bottom edges. The top and bottom edges maintain their top and bottom orientation as their closure panels transition between the deployed an stowed positions.

Abstract: A telescopic cover, provided for a machine tool, which comprises a first member slidable between first and second positions along an axis and having first and second ends provided toward the first and second positions respectively, a second member provided beneath the first member stationary along the axis, and a feeding mechanism for moving the first member along the axis, the feeding mechanism being provided in a space beneath a horizontal plane substantially coincide with the top face of the second member. The telescopic cover comprises a pair of telescopic cover assemblies which are provided over the feeding mechanism so as to retract and extend along an axis when the first member moves along the axis. The pair of telescopic cover assemblies comprises a pair of first cover members attached to the first and second ends of the fist member to move with the first member, a pair of second cover members provided for the respective first cover members.

Abstract: A protective panel for the work area of a machine tool, consisting of a plurality of segments which are movably interconnected by connection elements. The segments are formed as frames which are nested into each other and shiftable with respect to each other by means of connection elements, the maximum displacement path of the single frame being smaller than the bridge width of the nearest greater size frame.

Abstract: A set of window covering panels may be raised or lowered from a header mounted upon the window casing. Pull cords and drop cords on the panels permit the panels to be raised and lowered one at a time or all at a time. Guide members keep the panels in vertical alignment and cam surfaces permit one panel to slide up behind the next higher panel when shifting the panels into a nested condition.

Abstract: A telescopic cover element is made from a sheet material blank and has one U-shaped material deformation formed from multiple bends for receiving a rear portion wall/or providing an extension stop. A second U-shaped material deformation formed from multiple bends opens towards the exterior of the cover element to form a discharge channel.

Abstract: A shutter closure assembly for covering an opening in a building or the like comprises a stationary panel having a front face defined by a plurality of alternate vertical rails and slots, and a back face defined by a plurality of alternate horizontally extending rails and slots forming a substantially uniform array of openings throughout a major area thereof, and a moveable panel having a front face defined by a complementary plurality of horizontal rails formed by a plurality of horizontal slots, and a back face defined by a plurality of vertical rails formed by a plurality of vertical slots forming a corresponding array of openings and moveable relative to the stationary panel for alternately covering and uncovering the openings in the stationary panel.

Abstract: A telescopic covering is provided that includes a number of cover bodies that fit into one another in a telescopic manner and each comprise a cover wall, two side walls, and a rear wall. To improve the support and guidance of the cover bodies upon and against one another, a respective profiled corner element, which extends in the direction of movement of the cover bodies, is disposed between the cover wall and each side wall of each cover body, with the profiled corner elements serving to support and guide the cover bodies upon one another.

Abstract: An enclosure for use as a garage, storage shed and the like comprises a roof supported at its four corners by vertical posts, and front, back and opposed side walls each including a plurality of telescoping wall panels movable between a raised position in which the wall panels are nested together near the roof and a lowered position wherein the wall panels extend between the roof and ground. A cable and pulley system is operable to raise and lower all four walls simultaneously to provide access to the interior of the enclosure from any point along the perimeter of the enclosure.

Abstract: An infant security door gate is adapted for releasable disposition between opposed sides of a doorway and comprises upper and lower expansible support bars which are telescopingly adjustable to conform to the space between the sides and at the same time are spring-loaded so as to yieldingly engage the sides under spring tension at any adjusted position, and a pair of complementary slidably interfitting panels are arranged for adjustable disposition on separate telescoping portions of the support bars so as to follow the expansion and contraction of the support bars to substantially close the opening between opposite sides. The panels are characterized by being of corresponding construction and having complementary slidably interconnecting portions for ease of adjustment, or expansion and contraction, in following the telescoping movement of the support bars.

Abstract: An expandable door features vertically telescoping door sections, having flexible wire guides to insure engagement of the door sections during raising and lowering operations, with a minimum of physical contact and force exerted between adjacent sections. The wire guides are uniquely shaped to assure engagement of the door sections, even when said sections become misaligned; this unique shape also allows ease of constructions and repair. The door sections may be either generally U-shaped or L-shaped, and nest one within the other when the door is opened.