Abstract: A door assembly includes an articulated door with rollers mounted along its edge portions and guide and support tracks for securing the door to a wall with an opening that the door closes. The assembly also includes bracket members for supporting the door when a load displaces the door a predetermined distance in a direction generally perpendicularly to the face of the door when the door lies in a closed position.

Abstract: A power operated garage door of the type having a single section movable from a vertical closed position to a horizontal open position at the ceiling of the garage by cables which pull the door open and closed and are secured to the door by extensions of the journal bearings for pivotally supporting the lower edge of the door.

Abstract: A roller shutter includes a plurality of horizontal slats (I) each provided with a flat lug (22) projecting from each end and mounting inside guide rails (V) on both sides of the window or door. Each slat has its upper edge (3) bent in a hook-profile in one direction and its lower edge (4) bent in a hook-profile in the opposite direction. The upper edge of each slat engages the lower edge of the adjoining slat in such a manner that all slats of the shutter are in firm engagement wile their axes are at a possible maximum distance from each other, but are releasable from each other by their rotation about their axes whenever the shutter is lowered with the lowermost slat resting on the window sill with the slat axes at a minimum distance from each other. Rotation of the slats is carried out by slotted rotors (III) rotatably mounted in the guide rails (V) whereof each rotor slot engages one flat lug (22), at minimum distance.

Abstract: A louverable roller blind has lamellar blind slats (14), similar to Venetian blind slats, hingedly linked at their upper areas to pull chain elements (21, 40) and at their lower areas to adjusting chain elements (23, 41). The blind slats (14) are further laterally guided in stationary guide profiles (31). Pins (32) that connect the adjusting chain elements (23, 41) to the blind slats (14) are spaced apart from a plane in which hinge pins (30) of the adjusting chain elements (23, 41) are located. The hinge pins (30, 32) that link the pull chain elements (21, 40) and the adjusting chain elements (23, 41), as well as swivelling pins (16) of the blind slats (14), are mutually aligned when the roller blind is not used as a Venetian blind. This alignment allows the roller blind to be rolled up without problems in a reduced space and to be used as a Venetian blind with no need for special aids.

Abstract: A base member and a fascia are assembled to form a hollow door section which is filled with insulative material. Adjacent sections are coupled along respective longitudinal edges for angular and spatial displacement. The base member is extended from a selected plastic with male and female coupling components extending continuously along respective longitudinal edges. A plurality of mounting members projecting from the lateral edges of the sections matingly and slidably engage the semi-cylindrical guide surface of a tract for reciprocal vertical movement of the door. The door may be partially raised for spatial displacement of the sections whereby flow-through ventilation openings are exposed. In a specific embodiment, a flexible drive screw is rotatably carried within the track for powered operation of the door. In alternate embodiments a generally tubular door track is either grasped by a door guide apparatus having a clip, or the guide is slit and a rounded guide rides within the track.

Abstract: A sectional door (20) having a plurality of panels (21, 22, 23, 24) including, a body portion (25) of the panels spacing and joining longitudinal edges (40, 50), one of the edges (40) between adjacent panels on a first panel having a substantially concave curvilinear surface (45) in vertical cross-section, the other of the edges (50) between adjacent panels on a second panel having a substantially planar surface (52) in vertical cross-section, longitudinally-spaced hinges (65) interconnecting the first and second panels for pivotal movement.

Abstract: The tambour door assembly (16), for a bathtub (10) having side access or other structures, has a plurality of tambour slats (76 or 401). Shafts (78 or 404) are mounted in the ends of the tambour slats. Rollers 82 are mounted on the shafts (78 or 404) and guided by door guide assemblies 64. A flexible water impervious membrane (86) is clamped to the tambour slats (76 or 401) by clamp plates (414) having a surface (416), that is an arc about an axis parallel to the long axis of the tambour slats, in contact with the membrane. The membrane (86) maintains a predetermined space or pitch between the shafts (78 or 404). Sprockets (92) mesh with the shafts (78 or 404) and transmit force from one tambour slat to another through the membrane (86). If desired a motor can be provided to rotate the sprockets (92) and open and close the tambour door (16).

Abstract: A porch enclosure system for enclosing a porch having a framework including a pair of side members with vertical parallel slots, a top member for housing a motor mechanism and storing a plurality of glass panels and a bottom member for receiving a reciprocating shuttle. The plurality of glass panels each having a weatherseal either on the top edge of the preferred embodiment or on the lower edge on a second embodiment and slot engaging side edges. The motor mechanism is connected to the reciprocating shuttle by cables to raise and lower the shuttle. The shuttle carries the glass panels up and down in the slots where each panel is stopped by a pair of removable stops in each slot in a relationship to create an enclosure. The bottom member and side member slots cooperate to remove all or individual glass panels. The bottom member has a removable panel and the slotted side members have unslotted areas where glass panels are quickly and easily removed by removing the stops.

Abstract: An articulated door and door guiding track covers storage bays of a beverage body. The articulated door is formed by engaging a plurality of polymeric panel sections into a sequence such that each panel section can be positioned at varying angles with respect to an adjacent engaged panel section. Elastic shock cord runs from the bottom panel section to the top panel section of each articulated door. The shock cord prevents adjacent panel sections from moving laterally with respect to one another and holds the flat outer surface of each panel section flush with the flat outer surfaces of adjacent panel sections. The articulated door is guided between an open position and a closed position by a door guiding track comprised of a left channel facing a right channel across a door opening. The door is slidably positioned in the door guiding track by having a left end of each panel section extending into the left channel and a right end of each panel section extending into the right channel.

Abstract: A security mechanism for securing a movable closure supported within a frame, the closure being movable from a secured position to a plurality of unsecured positions, preferably having a securing element having at least one opening, a base element, a slider element movably mounted on the base element and a latch element comprising at least one locking latch pivotally attached to the base element. The locking latch preferably has a first cam surface for engaging a cam post located on the slider element and a second cam surface for engaging the opening of the securing element. When the closure is moved to its secured position, the second cam surface of the locking latch engages the opening of the securing element thereby causing the locking latch to pivot and lock to the opening of the securing element.

Abstract: A guide rail has running surfaces separated by a longitudinal slit and a load bearing member carried by the same so that it may slide but not rotate and on it a closing element, preferably a door of a folding sliding door, is attached. In order to be able to secure the closing element carried by the load bearing member to the guide rail simply and quickly, the load bearing member has an elongated carriage part running in the guide rail and having a width corresponding to the longitudinal slit in the guide rail. In a hole, at a right angle to the guide rail, in the load bearing member a pin is mounted so that it may rotate but not move axially and adjacent to carriage part it has a T-head, whose width is less than the width of the longitudinal slit but whose length is greater than it. The pin is able to be locked to the load bearing member in a setting in which the head bears against the running surfaces.

Abstract: An overhead door for a structure which includes a pair of tracks having inwardly facing surfaces which define a channel, and wherein the channels are mounted in predetermined substantially parallel spaced relation one to the other, a door panel located intermediate the pair of tracks and moveable along a predetermined path of travel which is defined by the pair of tracks, and a release assembly borne by the door panel and operable to releasably engage at least one of the tracks, the release assembly including a moveable plunger which is received in the channel of one of the tracks and which guides the door panel along the path of travel and which further becomes disengaged from the channel when force of a predetermined magnitude is applied to the door panel.

Abstract: A garage door-opener security system which automatically positively blocks any unauthorized opening of a sectional garage door that travels, guided by rollers, in a pair of flanking metal guide tracks. The security system is interconnected with a standard, automatic, garage door-opening mechanism that includes an electric drive motor. When the door reaches its fully closed position, a locking device, mounted adjacent one of the flanking tracks, physically inserts a locking pin into the trackway in which the rollers move, which pin is located a few inches above the roller next below. The locking pin is closely confined by a surrounding aperture which prevents its upward deflection or twisting, thus making it impossible for the roller to move therepast in the trackway and positively preventing the raising of the door more than a few inches.

Abstract: A sectional door (20) having a plurality of panels (21, 22, 23, 24) including, a body portion (25) of the panels spacing and joining longitudinal edges (40, 50), one of the edges (40) between adjacent panels on a first panel having a substantially concave curvilinear surface (45) in vertical cross-section, the other of the edges (50) between adjacent panels on a second panel having a substantially planar surface (52) in vertical cross-section, longitudinally-spaced hinges (65) interconnecting the first and second panels for pivotal movement.

Abstract: A sectional door panel for use in an overhead door assembly is provided. The sectional door panel includes a front panel, a rear panel, an insulating material between the front and rear panels, an upper edge integral to the front panel, a raised tongue formed in the upper edge, an upper rail integral to the upper edge, a lower edge integral to the front panel, a concave groove formed in the lower edge, and a lower rail integral to the lower edge. An overhead door assembly is also provided that utilizes a plurality of the sectional door panels.

Abstract: An exterior roll door for providing access to the interior of a trailer mounted on the outside, with door tracks on the outside in channels in the sides of a header, forming top rails, the door tracks having open sides facing outwardly and mounted inwardly from the rear edge of the trailer along the header, with the tracks along the header, before reaching the top corner of the trailer, curving towards the outer edges of the trailer, and then back to form top rails substantially flush with the roof of the trailer to allow the door to seal the trailer when in a down closed-position, while allowing the door to clear the corner of the trailer during opening, and then allowing the opened door to sit above the roof when in the up, fully-open position.

Abstract: A new and improved rolling gate stopping and locking system comprising a steel pole having a first end, a second end, and an intermediate extent therebetween. The steel pole has an aperture drilled therethrough upwardly of the first end. The steel pole is positionable within an aperture drilled through a stationary portion of a rolling gate. Included in the system is a rubber head having a flat upper surface and a contoured lower surface. The rubber head is secured to the second end of the steel pole. The second end of the steel pole extends upwardly through the contoured lower surface. The contoured lower surface corresponds with the stationary portion of the rolling gate to prevent the rolling gate from advancing thereby opening the rolling gate. A padlock is securable to the aperture drilled through the steel pole. The padlock serves to lock the steel pole to the rolling gate.

Abstract: A sectional door (20) having a plurality of panels (21, 22, 23, 24) including, a body portion (25) of the panels spacing and joining longitudinal edges (40, 50), one of the edges (40) between adjacent panels on a first panel having a substantially concave curvilinear surface (45) in vertical cross-section, the other of the edges (50) between adjacent panels on a second panel having a substantially planar surface (52) in vertical cross-section, longitudinally-spaced hinges (65) interconnecting the first and second panels for pivotal movement.

Abstract: An improved steel rolling door is equipped with a a number of pivot plates which are engaged with each other side by side and pivotally associated with one side of the topmost collapsible door plate, and a plurality of pulling wires which are engaged with the opposite side thereof so as to permit the collapsible door plates to be adjusted from a horizontal position to a vertical position, i.e., from an opening position to a closing position, or vice versa. Moreover, the door plates are consecutively connected to each other one by one by way of a plurality of linking pieces and length variable linkage assembly units each including a pair of pivot parts and a connector so that the door plates can be easily and smoothly collapsed and rolled up along a rolling shaft without getting stuck in operation.

Abstract: A sliding element system has a rectangular sliding element (1) with a first side (2) and a second side (3), these sides being substantially parallel to each other; guide wheel sets (4, 5) which are attached on the first side (2) and the second side (3) of the sliding element, each such guide wheel set (4, 5) having a number of wheels (6, 7, 8) and an axle (9) on which the wheels are rotatably carried one after the other to be separately rotatable, and the axle being fixed at right angles to the first and/or, respectively, the second side of the sliding element; a stationary pair of guide sections (10, 11) has a first guide section (10) located on the side of the sliding element's first side (2) and a second guide section (11) located on the side of the sliding element's second side (3), and the guide section (10, 11) has supports (12, 13, 14) running parallel with the guide section, for guiding and carrying the guide wheel sets, of which at least one first support (12) is in contact on one side of the first w

Abstract: A flexible closure formed of interlocking segments comprising a plurality of segments which together constitute the closure, each of the segments located between facing recesses of rails to essentially fill the space between rails at the lower extents when in a closed operative orientation and to essentially fill the space between rails at the upper extents when in the inoperative storage orientation, each of the segments having an upper portion with a generally semi-circular cross-sectional configuration over the majority of its extent with the axis of the upper portion extending horizontally between the rails, each of the segments also having a lower portion in the lower part thereof with a recess being of a generally semi-circular configuration over the majority of its extent with its axis parallel with the axis of the upper portion, the upper portion of one segment being received within the recess of the lower portion of the next adjacent segment to thereby allow the flexing of the closure about the axes

Abstract: An apparatus is provided for operating a segmented sliding overhead door. The door is of the type for sliding in a pair of side tracks mounted at either side of the door between a dosed vertical position and an open horizontal position. A driver is mounted at the side-to-side center of the door and extends away from an interior side of the door. The driver includes a screw drive shaft adapted to be mounted horizontally above the door. A motor is engaged with the drive shaft and provides reversible rotational drive force to the drive shaft. A drive shaft coupling unit engages the drive shaft for moving along the drive shaft in response to rotation of the drive shaft. A track assembly engages and supports the rotating drive shaft and guides the coupling unit in linear travel along the drive shaft. A door connecting rod assembly serves to rigidly jam the door against the floor when the door is in the fully closed position, and connects the carrier unit to the door for moving the door along the side tracks.

Abstract: An improved door mounting system which uses a pair of channel members directly coupled to a guide member to allow an access door to move from a position closing an access opening to a position clearing the access opening. The door can be a single panel or a number of hingedly interconnected panels. The door is movable laterally into a position or vertically. The door does not "swing, but it "slides", shifts or moves relative to and along the walls in contact with the ends of the panels. The particular door assembly of the present invention is for solving the following geometric problem: finding the geometrical locus of a center of a straight line segment when two ends of the segment are forced to move along two perpendicular straight lines.

Abstract: A track system (110) for a door (120) having a plurality of panels including a top panel (121) and a hinge connected adjacent panel (122), having an inner side for attaching mounting hardware and being movable between a closed vertical position proximate a door frame and an open horizontal position including, substantially vertical track (111) adapted to be displaced from the door frame (F) a distance sufficient for receiving a plurality of rollers (142, 152, 162, 165) attached to and spaced from the inner side of the door, transition track (112) commencing at the upper extremity of the vertical track and curving through an angle of substantially ninety degrees for receiving a top roller (132) positioned proximate the upper extremity of the top panel and spaced from the inner side thereof a distance greater than any of the plurality of spaced rollers, and horizontal track (114) extending from the transition track and having a curvilinear configuration for maintaining the top panel and the adjacent panel of th

Abstract: A bottom bracket for an overhead garage door having a spring tension assisted lift system. The bottom bracket has protrusions that interlock with mating slots in the stile of the garage door bottom panel thus preventing the bracket from detaching from the garage door when the bracket is attached to the spring under tension, even if the bracket fastening screws are removed.

Abstract: The spreading of a fire outside of an aircraft body into the cabin through the windows is retarded by a fire retardant slide member that is movable into a window covering position guided by guide rails or the like. Both, the sliding member and the guide rails are made of fire retarding material such as thermosetting material, preferably glass fiber reinforced thermosetting materials. A thermoplastic locking element that holds the sliding cover member in a recessed position releases the cover member when the locking element melts at elevated temperatures to cover the window automatically, e.g. with the aid of gravity or with the aid of one or more biasing springs.

Abstract: A barrier gate for preventing access to a restricted area which is designed to be lightweight and yet sufficiently resilient to return to its original shape after being impacted by heavy equipment. The barrier gate outer frame includes a plurality of flexible plastic tubular frame members which are joined together by frame joint couplers, including one at each corner of the frame. One or more inner flexible plastic tubular frame members extend across the outer frame and are joined thereto by frame joint couplers. A flexible plastic web material is supported in each field between the outer and inner frame members. In a preferred embodiment, all of the outer and inner frame members, and all of the frame joint couplers are formed of PVC plastic.

Abstract: The closure of the invention for an aperture has strips interlinked articulatedly via hinges in such a way that the distance between adjacent strips defines a space in which the hinge pins engage. Rubber sealing strips are fitted to interconnect adjacent strips; they are arranged coaxially with the hinge pins and engage with the strips virtually without any clearance.

Abstract: A new and improved oven door apparatus includes a pair of guide channel assemblies connected to a pair of sidewalls of the oven. Each of the guide channel assemblies includes a straight vertical guide channel portion, a curved, right angled guide channel portion, and a straight horizontal guide channel portion. The straight vertical guide channel portion is connected to an oven sidewall adjacent to a front, open portion of the oven which provides access to the interior of the oven. The straight horizontal guide channel portion is connected to an oven sidewall adjacent to a top portion of the oven. An articulated door assembly includes a plurality of rectangular door panel assemblies and is connected together by articulated connection assemblies, e.g. hinge assemblies. A wheel assembly is positioned adjacent to each corner of each door panel assembly. Wheels ride in the guide channel assemblies. The bottommost of the door panel assemblies includes a handle.

Abstract: A base member and a fascia are assembled to form a hollow door section which is filled with insulative material. Adjacent sections are coupled along respective longitudinal edges for angular and spatial displacement. The base member is extended from a selected plastic with male and female coupling components extending continuously along respective longitudinal edges. A plurality of mounting members projecting from the lateral edges of the sections matingly and slidably engage the semi-cylindrical guide surface of a tract for reciprocal vertical movement of the door. The door may be partially raised for spatial displacement of the sections whereby flow-through ventilation openings are exposed. In a specific embodiment, a flexible drive screw is rotatably carried within the track for powered operation of the door.

Abstract: A flexible fabric machinery guard is characterized by one or more lightweight panels of porous, plastic-coated, woven glass fibers which are reinforced by non-porous fabric borders. The panels each include elongated, tension-bearing cables extending through sleeves formed in the panel fabric. Opposed gudgeon and pintle connectors interconnect the panels with upstanding support members so that the panels may be removed to permit access to the machinery space. The machinery guard provides ventilation for the machinery space, visual inspection of the machine from outside the machinery space and easy access thereto by removing and folding the panels.

Abstract: A flexible, retractable assembly for use as a door, space divider, covering or the like which comprises a sheet such as Mylar polyester film having a permanent memory set to roll up on itself or otherwise retract automatically into a coil, accordion, or other compact configuration. The assembly is adapted to be stored on one side of an opening and then guided across the opening to fully or partially cover the opening. The permanent memory set of the sheet permits it to retract at least partially under its own force to eliminate or minimize the need for separate rewinding apparatus. The sheet may substitute for a variety of standard products including entryway doors, closet, cabinet and shower doors, screen doors and windows, room dividers, machinery guards and covers for various items such as florescent light fixtures. The sheet may be combined with decorative finishes including a tambour composite structure providing aesthetic and functional advantages.

Abstract: A sectional van trailer having detachable, interchangeable compartments capable of forming a continuous van body is disclosed. One or more van sections or cargo compartments are secured to a trailer frame. The van sections may be individually removed and left at a location for loading or unloading. When removed, the van sections form secure, weather-tight individual containers for the goods disposed therein. The van sections are interconnected and each van section may remain an individual compartment or may be joined with one or more adjacent van sections to form a continuous van body. A tractor mounted hoist apparatus is provided to allow a lone truck operator to move the van sections between the ground, and the trailer frame, a storage stand, or a truck frame. The described embodiments are particularly efficient for moving both household belongings and general commodities on a long-haul trip.

Abstract: A shutter for large pressure vessels comprises a lid assembly (Y) constituted of a seal plate (1) formed of a flexible material of a size fit for the opening of a pressure vessel and a multitude of beam members (2) attached to the outer surface of the plate (1) and extending widthwise. The beam members are connected to the seal plate in such a manner as to be parallel to each other along a reference line for connection, extending in the widthwise direction of the seal plate, and advance or retreat while flexing along a guide member (7) having at least one bending portion (71). The guide member extends between a closing position (A) disposed in front of the opening portion and a storage position (B) disposed on an outer housing of the pressure vessel, so that the assembly can be housed in a relatively small space. This shutter is most suitable for use on a medical autoclave and a retort for food processing.

Abstract: A retracting system for flexible side walls utilized for cargo vehicles wherein the flexible side wall is attached at one end to a slidable door used to extend and retract the flexible side wall. This system provides a narrow slidable door connected to a system of pulleys and cables that maintain the slidable door perpendicular to the floor and roof of the vehicle during horizontal movement of the slidable door for closing or opening the open side of a cargo carrying vehicle. The system can incorporate a reversible motor to propel the system and move the slidable door without a pushing or pulling force rom a human operator. The slidable door is suspended from a track at the top edge of the door keeping the slidable door in alignment and decreasing rolling resistance.

Abstract: An apparatus is arranged to include a first and second door section, each slidably mounted relative to an upper and lower guide track and channel, wherein the door sections each include door panels that are formed with an upper roller received within the upper guide track and a lower roller received within the lower channel. A worm drive mounted to an initial first panel in threaded inter-relationship effects sliding relationship of the first and second door sections relative to the upper and lower guide tracks and to a door opening.

Abstract: An improvement in rolling shutters that includes a slat end retainer attached to the ends of individual shutter slats contoured and configured for securing a slat end to the side track which allows the shutters to endure high velocity winds, substantial impact, or attempted forced entry without conventional storm braces. The retainer end includes a pair of contoured inner and outer flanges formed from a unitary body which has a predetermined sized slot that is keyed to fins in each vertical side track to prevent disengagement of the slat from the track.

Abstract: Novel angled flag brackets for use with tracks for sectional overhead garage doors are disclosed. The novel angled flag brackets of the present invention are uniquely designed to permit the vertical and horizontal tracks to be uniquely adjusted in both vertical and horizontal directions at the time of assembly and installation so that the assembled and installed tracks will be plumb, level or square. The novel angled flag brackets further permit end bearing plates of torsion spring systems to be directly mounted thereto when door jambs are too short so that the end bearing plates will not remain free-standing following installation.

Abstract: An articulated door and door guiding track covers storage bays of a beverage body. An articulated door is formed by engaging a plurality of polymeric panel sections into a sequence such that each panel section can be positioned at varying angles with respect to an adjacent engaged panel section. The articulated door is guided between an open position and a closed position by a door guiding track comprised of a left channel facing a right channel across a door opening. The sequence of panel sections is slidably positioned in the door guiding track by having a left end of each panel section extending into the left channel and a right end of each panel section extending into the right channel.

Abstract: This invention pertains to a retractable roller-hinge assembly for use with retractable overhead doors. More particularly, this invention relates to a novel roller-hinge assembly which when installed on conventional retractable overhead doors, such as garage doors warehouse doors or truck doors, enables the door panels to pull away more quickly from the door frame as the overhead door is raised, or lowered. A hinge assembly for connecting upper and lower panels of a retractable overhead door comprising: (a) upper devices for securing to the upper panel; (b) lower devices adapted for securing to the lower panel, the lower devices being hingedly connected by a pivotal axis to the upper devices; (c) roller and roller axle devices rotatably connected to the upper devices, said roller and axle devices being adapted to move towards the lower devices as the upper devices are pivoted about the pivotal axis.

Abstract: The invention provides a roll-up door for operation with a pre-tensioned balancer and having fastening apparatus comprising a cable with fasteners, one on each end, and which is coupled to the door at first and second positions spaced substantially equally from respective sides of the door. The balancer has a clip located centrally with respect to the first and second positions so that as the cable is positioned on the balancer during initial installation, the cable can adjust in the clip so that the lengths of the cable from the balancer to the door are equalized. The cable is wound onto the balancer as the door is opened. This winding creates sufficient friction between the cables and the balancer to lock the cables to the balancer so that the cables effectively retain their equal lengths during use.

Abstract: A drive arrangement for maneuvering a generally vertically moveable door, the arrangement comprising at least one bendable door lifting element which is connected to at least one of the two longitudinal side edges of the door. In order to enable the force required to maneuver the door to be held substantially constant, or to vary only significantly over the full opening range of the door, particularly in the case of doors of the kind in which the force required to open or maneuver the door increases with the extent to which the door is opened, the door lifting element has connected thereto an elongated, bendable counterbalance device, and the door lifting element will function to move the counterbalance device between an inactive position, in which it is generally horizontal, and an active position in which at least a part of the weight of the counterbalance device will exert a lifting force on the door through the intermediary of the door lifting element.

Abstract: The invention refers to a roller shutter rod of stable shape, consisting of an aluminum strip plastic-coated on one side at least in part, and roll-formed into a hollow section 18 with the coated side inwards, the hollow section featuring upper and lower connecting areas with double-layer aluminum strip and an inside wall 14 as well as an outside wall 13, said hollow section featuring for the increase of the longitudinal stiffness and durability of the roller shutter rod at least one contact point 15, at which at least two aluminum strip layers are bonded with one another.

Abstract: A bracket assembly for an overhead door including a first portion having a first base and at least two first portion rails having a plurality of openings. At least two arm attachment projections extending outwardly from the first base substantially parallel to the rails each including an opening. The assembly further including a second portion having a second base and at least two second portion rails having a plurality of openings. The second portion also includes at least two pivot pin receiving projections each having at least one opening. A third portion of the bracket assembly includes a third base having at least two third portion projections having at least one opening. The third portion can be attached to the second portion by a pivot pin.

Abstract: A decorative venetian blind window security system that can be readily removed for emergency exit is disclosed. The security system includes a plurality of blind slats disposed within a frame assembly that receive locking rods through elongated openings formed in the blind slats. The locking rods can be selectively locked within the blind slats from the inside of the frame assembly. The blind slats can be selectively locked against rotational and transverse movement by locking means attached to the frame assembly.

Abstract: A roll-up or curtain type door is disclosed which is for use in large doorways, the door having an improved support apparatus, an improved spring mounting mechanism, and a unique bearing block which also functions to support the door as it is rolled up. The roll-up door has a substantially stronger hollow hexagonal barrel assembly which is less susceptible to flexural stress, and a spring mounting arrangement which allows the springs to shrink or grow longitudinally as the door is rolled up or down. The barrel assembly is mounted on pivoting support means allowing the barrel assembly to move away from and toward the guide tracks as the door is rolled up and down, whereby the variation in diameter of the barrel assembly does not affect the performance of the door.

Abstract: A lift link gate having a plurality of tabular gate elements joined together by joints or hinges about a horizontally extending pivot axis. The gate slides in lateral guide tracks which guide the gate from a vertically closed position along an arcuate path into a horizontally open position. To avoid finger injuries in the deflection area of the gate elements, there is provided at the upper edge of each gate element a tooth-like projection substantially symmetrical relative to the gate center plane which has a front flank ascending up to the tooth tip and a rear flank descending from the tooth tip to the rear face of one of the gate elements and at the lower upper edge at least one depression complementary to the projection of a next adjacent element is provided, and upon pivoting of the adjacent elements in the arcuate path area of the guide track, an aperture region is provided with only a small aperture spacing which precludes the wedging of a finger therein.

Abstract: Each panel of a garage door of the articulated type comprises a rigid metallic, rectangular frame including a pair of horizontal longer members and a pair of vertical shorter members rigidly interconnected. A casing surrounds the longer members and is made of two extruded sections, of synthetic material, which protrude laterally from the metallic frame and are interconnected to each other. The outer casing section carries weather strips for sealingly engaging the outer section of an adjacent panel. The outer casing section also carries retaining strips of J-shaped cross-section, which retain sheathing panes forming the main panel faces. These sheathing panes may be translucent or transparent, or may be opaque to conceal heat-insulating material which fills the panel inner space. Spaced upright mullions are disposed within the door panel and fixed to the horizontal frame members to provide anchors for the hinges which interconnect the panels.

Abstract: An articulated door and door guiding track covers storage bays of a beverage body. An articulated door is formed by engaging a plurality of polymeric panel sections into a sequence such that each panel section can be positioned at varying angles with respect to an adjacent engaged panel section. The articulated door is guided between an open position and a closed position by a door guiding track comprised of a left channel facing a right channel across a door opening. The sequence of panel sections is slidably positioned in the door guiding track by having a left end of each panel section extending into the left channel and a right end of each panel section extending into the right channel.

Abstract: A sectional door installation comprises a series of horizontal door panels mounted on opposite ends on scissors linkages to move between a deployed generally vertical position closing the doorway to a withdrawn position wherein the panels are arranged generally horizontally at the upper end of the doorway. The panels are transparent and are detachably connected to the scissors mechanism at their opposite ends so that they can readily disengage therefrom when impacted by an object such as an automobile, without damaging the object or themselves being damaged.