Abstract: An interior corner joint for joining wall board panels, particularly wall board panels simulating tiles embedded in grout, in a corner. The interior corner joint comprises a first base section; a second base section extending upwardly from said first base section and being perpendicular to said first base section; a rib extending upwardly from said first base section disposed adjacent to said second base section and canted toward said second base section, said rib, second base section, and first base section defining a channel adapted to receive a first wall board panel; and a flange at the distal end of said rib extending outwardly from said rib and inclined toward said first base section, said rib, flange and first base section defining a second channel adapted to receive a second wall board panel in substantially perpendicular relationship to said first wall board panel. With the two wall board panels inserted into the two channels the only exposed part of the joint is the flange.

Abstract: An element of an office panel includes a back support member closed at either end by molded end pieces. The molded end pieces in combination with the back support member define a front opening recess into which a filler material is inserted. A decorative facing material is applied over the filler material and attached to the back support member and the molded end pieces, whereby the facing material forms a finish face of the element. With this arrangement, the back support member is more easily manufactured, as it is open at either end and the molded end pieces can easily be inserted within the back support member to effectively close the member and provide a complete support for the element. According to an aspect of the invention, the molded end pieces include molded components thereon by means of which the element can be effectively supported by an office panel frame.

Abstract: A frame for a louver holds the louver below the ceiling surface, away from a light fixture. This helps to collimate the light rays and direct the light downward, thus preventing unwanted sideways glare. In addition, the use of a frame tends to hold the louver more securely in the ceiling framework. The frame is formed of Z-shaped members, with one arm of the Z resting on the T-bar cross-bar and the other arm supporting the louver. A stop along one side of the frame prevents movement of the louver in the frame. In one aspect of the invention, rotatable angle supports at the ends of the frame rotate from a vertical position for use during louver installation to a horizontal supporting position for supporting the louver in the frame.

Abstract: A panel light assembly used in panels. The panel light assembly has a retainer clip for a mounting glazing between two opposing frames that are mounted in apertures in the skins of the panel located on either side of the core of the panel. The retaining clip, preferably made of a springy material, includes longitudinally extending legs depending from opposite longitudinal sides of the clip and which are operable to slide over and securingly engage the panel skins. Oppositely spaced and oppositely directed trim retainer prongs project up from said clip body and generally towards a longitudinal center-line of said clip body for engaging the frames and securing the glazing between the frames in the panels light apertures. The present invention provides at least two skin spacer tabs depending from the clip wherein each of the skin spacer tabs is spaced sufficiently apart from legs so as to be able to receive the skins therebetween.

Abstract: A door light frame assembly adapted for use with any of three different types of door construction includes a universal outer frame structure, attachable by screws to any one of three different inner frame structures, depending upon the type of door construction with which the frame assembly is to be used, for securely gripping the inner and outer sides of the door construction around the perimeter of an opening therethrough. The inner and outer frame structures, when assembled, also cooperate to define two separate peripheral channels of different widths for respectively clamping two different-thicknesses of window pane units. The outer frame structure also includes a peripheral groove cut away at two spaced-apart locations therein to define access openings for receiving therein peripheral edge portions of a flexible insert.

Abstract: A vision panel assembly for a fire door includes a frame structure and a glass vision panel which are mounted in a rectangular opening in the fire door. The frame structure includes a pair of frames which are anchored in grooves in the fire door and which are clamped against the glass vision panel. One frame is provided with fastener bars which are threadedly engaged by fastening screws for securing the frames together. Panel support elements extend through openings in the fastener bars for engaging edges of the glass vision panel to provide support therefor.

Abstract: The panel comprises an outer plate (70) supported by a metal frame (71). Two opposite sides of the frame are formed by light metal profiled elements (72, 73) having a rim (74) which extends along one edge (75) of the outer surface of the plate. This rim may be bevelled or right-angled. The plate is clamped between the opposing rims (74) by means of two threaded steel rods (76). The other two edges of the panel are devoid of any metal element. The panel (62) may be placed on the front of a window (63) or an opaque part of the facade. This panel makes it possible to attach, without the use of glue, thin facade facing plates, particularly plates of glass or stone, so that they are virtually the only visible parts of the facade.

Abstract: The framed surface component includes a surface component having circumferentially extending abutting surfaces provided with inwardly offset portions, L-shaped cross-sectioned frame legs enclosing the surface component circumferentially, each of the frame legs having one section leg engaging behind the surface component and another sections leg extending spaced from and parallel to a respective circumferentially extending abutting surface, and an adhesive connection between the surface component and the frame legs made with a hardening sealing compound. The sealing compound fills the offset portion in the abutting surfaces between the surface component and a free space between the surface component and the section legs of the frame legs, which section legs extend parallel to the abutting surfaces. The section legs extending parallel to the abutting surfaces of the surface component can each have a widened portion extending from a front side.

Abstract: A replacement window frame assembly includes bottom, sectioned-top, and first and second side cap members for placement over an existing window frame in a building from which the windows and intermediate support members have been removed. The cap members are made from a uniform aluminum extrusion which has a front lip to extend over the outside of the existing frame, and a lower depending lip, designed to rest on the window sill, or abut against the side and top of the frame opening in which the original frame is placed. The cap members are placed over the existing window frame to form a flat mounting surface for the installation of a replacement window. The entire replacement may be effected from the outside of the building, and is accomplished without destroying or damaging any of the interior or exterior finishes of the building.

Abstract: The present invention provides a flooring system that can be quickly, accurately and easily installed in various sorts of buildings, including temporary structures, pre-fabricated buildings or permanent structures such as factories, homes or offices. The flooring system broadly consists of individual panel assemblies that may be cooperatively interengaged. The periphery of each panel is bound by frame members having two spaced generally parallel flanges and a generally perpendicular web extending therebetween. On one side of the web, between the upper and lower flanges, the frame members include a track for receiving a key block. The key block comprises a generally rectangular base with a key tongue extending therefrom. The base is slidably received in the track of one frame member and the tongue is received in the track of an adjacent frame member. The frame members may be miter cut to a desired length and the corners fastened together by a corner fastener.

Abstract: A vehicle sun roof has a frame part, such as a cover frame (3) for a cover (4) which can be opened and closed in relation to the roof covering (2). In the zone of the opening edge (2'), fastening devices (7), distributed on the circumference (perimeter) are necessary. The necessary holding forces between the roof covering and the frame are especially simple to mount and can be securely applied by a single installer. Complicated parts or mounting tools are not needed. The necessary holding forces are obtained through clamping devices, which consist, in each case, of at least one bolt (9) which can be rotated, pushed along or swung, and at least one blocking member (18) which can be gripped behind the bolt. The bolt is arranged on one, and the blocking member on the other of the parts to be joined together.

Abstract: The connecting section includes two metal sections held spaced from each other by at least one isolating bar having at least one recess extending longitudinally therein. Each of the metal sections are provided with at least one isolating bar-receiving groove and at least one grooved longitudinal member. Each of the grooved longitudinal members of the metal sections are fitted in a recess in the isolating bars by elastic deformation and each of the isolating bars have at least one slot opening to the adjacent metal section. The metal wire is sunk into the metal section and the isolating bar on deformation of the grooved longitudinal member.

Abstract: A sectional frame and insert arrangement in which one contact surface on the insert rests against the frame, and the insert has a flange with a foot-shaped cross-section extending into a channel with a C-shaped cross-section. The flange has an impact surface that extends perpendicular to the contact surface and rests against the wall of the channel. The flange has a snap-in edge that engages below and can be released from the head of another wall having a T-shaped cross-section and being positioned opposite the first wall. Positioners enclosing at least partly the inserted area of the snap-in edge of the foot-section flange, are inserted into a longitudinal snap-in groove. The positioners have resilient tongues above the snap-in edge resting against the head of the T-section wall.

Abstract: A multifunctional frame element is proposed, which is usable as a picture frame and also in many other different ways as a frame. The frame element has a clip fastening for pictures, plates, object carriers and the like which is not visible from the outside, so that art objets and the like can be attractively presented. Coins can be presented in such a way that an observer can easily see both sides of the coin.

Abstract: An anti-theft device for a vehicle having a window pane within a rim forming an opening in the vehicle. An interior frame has a plurality of openings extending therethrough. An exterior frame, capable of mating with the interior frame, has a recess extending around the frame and a plurality of openings extending into but not through the exterior frame. A sheath, extending around and receiving the edge of the window pane, has at least one handle extending therefrom. A latch extends from the sheath and is enagable with the interior frame. Fasteners are receivable through the interior frame openings and into the exterior frames openings so that the window pane within the surrounding sheath may be placed in the recess and engaged with the interior frame by use of the latch.

Abstract: A panel-framing assembly using clips to secure a pair of retaining strips to a frame member, along each edge of a panel being framed, without any adhesive. Each clip has a securing portion, which is insertable into a relatively wide region of a slot in a wall of the frame member, and which is adapted to coact with the wall to secure such clip to the frame member when such clip is moved so that the securing region is admitted by a relatively narrow region of the slot. Each retaining strip has an inner leg, which is insertable between a flanged portion of each clip and the wall when such clip is secured to the wall, and an outer leg, which is generally normal to the inner leg, and which is adapted to retain a panel seated against the flanged portion by engaging a portion of one face of the panel along one edge of the panel to prevent lateral movement of the panel relative to the frame member.

Abstract: A window sash frame which has fiberglass reinforced plastic framing members. The framing members have associated subframes. The subframes are joined at their ends so that the ends of the framing members are drawn towards each other to form a window sash frame having tight fitting corner joints. An associated method is also disclosed.

Abstract: A window with a removable fixed window sash which comprises a window frame including opposed, spaced-apart top, bottom and side frame members. A window sash is positioned removably in the window frame. Top, bottom and side retainer members are mounted, respectively, on the top, bottom and side frame members. At least two of the top, bottom and side retainer members are removably positioned in the window frame in non-attached contact with the window sash to retain the window sash in the window frame means. At least one of the top, bottom and side members is attached to a respective top, bottom and frame member to retain the window sash in the window frame means. The attached member is removed when removal of the window sash is desired.

Abstract: A modular building block wherein a plurality of frame members sandwich fit panels therebetween so as to provide a block with a selective depth and insulation factors. The modular block can be interconnected with other similar blocks to provide any desired structure such as a window, wall or floor. The block is easily assembled yet can be repaired as the frame members can be disassembled and old panels replaced with new ones.

Abstract: A vision panel assembly for a fire door is provided with a decorative shielding unit which enhances the appearance of the fire door and renders the vision panel assembly substantially tamper-proof.

Abstract: The specification discloses a door assembly having a flush-mounted integral door light supported on a perimeter lip extending from the door. The door light includes inner and outer frames sandwiching a panel and the perimeter lip therebetween. The outer frame includes compressive weather seals against both the panel and the lip. The door rails and stiles each include an ear along one side thereof to provide both a tenon-and-mortise construction and the perimeter lip about the door opening.

Abstract: An acoustical wall panel assembly in which each wall panel includes a rectangular metallic frame member, an acoustical core panel fixedly secured within the frame, and a decorative panel. The decorative panel is removably secured to the frame by a plurality of adhesive strip members. The wall panel assembly further includes an upper track having a downwardly extending flange portion and a cover panel secured adjacent the vertical edges of adjacent panels. The cover panel has flange portions overlying the vertical side edges of the decorative panels. The adhesive strip members, the upper and lower tracks, and the flange portions of the cover panels coact to firmly maintain the decorative panels in position relative to the frame members.

Abstract: A plurality of extrusions are provided including a base extrusion, at least on intermediate extrusion, and a sealing extrusion. These may be precut or cut on site and assembled with panels to form a building structure such as a greenhouse, porches and the like. However, primarily they are designed to form fixed sealed, single, double, triple or sliding window units.

Abstract: The invention relates to a sunroof (1) for motor vehicles with a cover frame (3). This cover frame is formed by a first frame (5) and a second frame (6) and with a cover (4), which can be opened and closed. The cover frame (3) can be fixed in position by clamping of the roof skin (2) in the region of the opening edge (2') between the first and second frame at the vehicle top. The clamping mechanism allows the maintenance of the required clamping forces between the first and the second frame. Openings (8, 8', 8") can be distributed around the circumference of the first frame. The second frame carries levers (9) which can be slid through the openings of the first frame and can be tilted, in the mounted state, into a bolting position. The lever (9) can have a rest state at the first frame upon tilting in a bolting position and the lever (9) exerts the required clamping forces between the first and the second frame.

Abstract: The externally insulated window mounting is employed in the sidewall frame of a railway passenger carriage. This carriage frame comprises sidewall sections and post sections (10), an exchangeable outer skin and in between an insulating material. The window mounting is releasably secured to the sidewall sections and post sections. The inner frame, made up of at least four extrusion pieces spaced from the region of the window corners, features a lip which serves as a sealing surface for the outer skin and holds in place an outer, peripheral frame with undercut groove. A lip on the outer frame pointing away from the window opening, clamps the outer skin securely and holds in place a mounting strip of weather resistant, elastic material to retain the window glazing in place.

Abstract: A curtain wall comprises a framework of elongate main frame members defining cells in which infill panels are clamped by auxiliary frame members secured to the front of the framework. The panels are sealed in the cells by gaskets on the frame members. To prevent the weight of unclamped panels from distorting the auxiliary members and their securing screws, they rest on support elements projecting forwardly from slots in the transverse main frame members at the bottoms of the cells. The elements may relieve the auxiliary members entirely, or may rest on them when they are secured. Alternatively the panels may rest on the auxiliary members which transmit their weight to the support elements. The support elements and/or further locating elements can act to align the main and auxiliary members and guide the screws during construction.

Abstract: There is provided a new and useful unitized panel assembly for partition walls comprising a frame structure comprising in open rectangular configuration top, bottom, and first and second sides each comprising a hollow member of rectangular configuration, each hollow member having first and second panel support faces joined by inner and outer webs, the faces having inner and outer surfaces and inner and outer edges, the outer web being spaced from the outer edges, the outer surfaces having a flange extending perpendicular thereto at the outer edges, a pair of rectangular panels secured to the support surfaces, and wherein the panels are adapted to fit closely within the flanges, and the extremities of the flanges are substantially flush with the outer surface of the panels.

Abstract: A modular screening system which includes a plurality of screening modules supported in an interlocking manner of clamping bars secured to and positioned across a screening machine in parallel spaced relationship. The modules have a peripheral portion defined by side and end walls with a plurality of openings extending through the modules inwardly of the peripheral portion. The side and end walls of the modules are provided with interengaging means which interlock with longitudinal and transverse channels in the clamping bars to secure the modules in position in the machine, the modules are provided with interengaging means whereby the modules interlock together.

Abstract: A wall system includes a grid constructed of horizontal main support channels mounted on a fixed wall and a plurality of spaced vertical standards secured to the channels at the front thereof. Each channel has a U-shaped cross-section with rearwardly extending arms diverging slightly so that overlapping channels may nest, one in the other. Ears projecting outward from the ends of the arms and lie in a common plane are used for securing the channel in place. The web of each channel is provided with a longitudinally extending row of equally spaced apertures. Each standard is provided with two longitudinally extending rows of holes with the rows being spaced by the distance between apertures and the holes in opposite rows being connected by lines that are perpendicular to the longitudinal axis of the standard. Fasteners extending through holes in each row are received by adjacent apertures in the channel web to automatically secure the standard in a position at right angles to the support channel.

Abstract: The pane in a windowed fire retardant door is secured to the door by L-shaped metal clips which engage opposite surfaces of the pane and are nailed to the incombustible core of the door. The edges of the pane and of the hole in the door in which the pane is received are trimmed by bead strips that are nailed to the door. Each bead strip comprises a body of quadrangular cross-section of noncombustible mineral material and a plywood lamination bonded to that body over two of its longitudinal sides and a rounded corner at which those sides meet.

Abstract: A panel wall assembly comprises rectangular panlike panels mounted close together side by side and end to end. Retainers located at all junctures between the panels are fastened to the building structure, and the panels are fastened to the retainers by clips having arms that extend out through slots in the panel flanges and clamp the edges of the flanges against seating surfaces on the retainers.

Abstract: A significant drawback in prior art methods of fastening vinyl siding to the exterior of houses is the objectionable appearance of the junction between horizontal and vertical retaining strips around right angle openings (windows and doors) in the walls being covered. Typically, these channel shaped retaining strips are butted up against one another at the corners. Gaps and rough edges resulting from the cutting and fitting of these pieces are quite visually objectionable. Applicant's invention comprises a corner piece which is firmly attached to the wall at the juncture of the horizontal and vertical retainer strips and covers the juncture between the horizontal and vertical retainer strips.

Abstract: Apparatus for securing glass panels in fire barriers comprises an elongated glazing strip made of layers of sheet material adhered together. The sheet material is formed from a slurry mixture of wood fibers and a fire retardant chemical by the use of heat and pressure. The panels are also preferably secured by metal clips having a flat base of thin sheet material and upstanding, elongated projections from the base that are parallel to each other and spaced apart by a distance corresponding to the width of the glass panel to be secured. This arrangement makes it possible to locate glass panels in fire barriers without substantial reduction in the ability of the barrier to contain a fire.

Abstract: A changeable wall structure includes a frame which removably holds a plurality of inner decorative panels having displays on one or both sides. A combination of a shelf, a shelf extension, and a support are selectively secured to the frame by mounting brackets. These brackets include upper, lower and intermediate support brackets which permit the support of panels in upper and lower positions, in intermediate positions, and in rearward positions and forward positions. Decorative panels are employed, and the forward or outer panels can partially or totally conceal one or more of the inner panels from view. Each decorative panel is preferably changeable and reversible.

Abstract: A panel fastener system is provided for securing a panel sheet to a frame across an opening, e.g. window opening. The system comprises a frame member mounted along the length of the frame and having a first magnetic element non-adhesively mounted to the frame member. A panel sheet is provided of suitable size to cover the opening. A panel retaining member extends along is mounted to the edges of the panel. The retaining member has an outer and an inner leg connected to each other at one end, the edges of the panel being retained and mounted therebetween. A second magnetic element is non-adhesively mounted to the inner leg. The first and second elements are magnetically attachable to each other. The inner leg and second magnetic element mounted thereto are both shaped and mounted to each other to form a rigidized elongated hollow structural member therebetween along the length of the edges of the panel.

Abstract: A corner member for locating at right angles spacer strips of a sealed window unit includes a pair of legs at right angles each for extending into an adjacent end of one of the strips. The strips are of the type formed from fiberglass reinforced resin pultrusion defining a slot along the inner surface. To prevent the slot opening when the leg is inserted into the hollow interior of the strip, the leg includes a pair of laterally extending projections for engaging the strip in compression fit only at the junctions between the sides and outer edge of the strip.

Abstract: A vision unit which can be easily assembled into the opening in a door such as a fire door which is constructed so that it can withstand high temperatures without disintegration. The vision unit is readily assembled into an opening in the door by one person working alone. The vision unit is composed basically of two frame members, two lower support elements and a biasing element which extends between the wall surface at the top of the opening and one of the support arms of the frame. The support arms include sharp edge portions for contacting a transparent panel member. Securing means such as threaded nuts and bolts or screws pass through the door opening and fasten the frame members to the door as well as to the panel member.

Abstract: A glazing trim comprising two complementary extrusions having inter-engaging teeth, enable the extrusions to be connected together at different spacings enabling the glazing trim to accommodate sheets of different thicknesses. The glazing trim can be constructed on site by cutting the extrusions to length, and inter-engaging the locking teeth of the complementary extrusions by tilting one of the extrusions about a portion of the other until their teeth engage. A sheet of material can be held in place by resilient gaskets and wedges interposed between the sheet and the extrusions. Several shapes of extrusions are illustrated, together with a variety of different applications for the glazing trim.

Abstract: A panel wall assembly comprises rectangular pan-like panels mounted close together side by side and end to end. Retainers located at all junctures between the panels are fastened to the building structure, and the panels are fastened to the retainers by clips having arms that extend out through slots in the panel flanges. Troughs on each horizontal retainer drain condensate or water that leaks through seals between adjacent panels to drainage slots in the vertical retainers. Gaskets between the retainers and the panel flanges provide additional control of water flow behind the panel faces.

Abstract: A ceiling runner is disclosed for use in a ceiling grid system of a suspended ceiling. Each of the main and lateral runners of this ceiling grid system has a similar shape in the flange at the lower end of a generally T-shaped structure. Such flange has first and second flange portions on each side of the web portion, and these flange portions are joined to the web portion by first and second connector portions which are recessed toward the web portion. This establishes a longitudinal recess in the exposed surface of the flange so that a distinctive appearance of the ceiling runner is provided which has definite longitudinal delineation between the ceiling panels. Preferably, the connector portions are shaped to maintain a panel in its proper centered position or to cam such panel to such centered position.

Abstract: A frame for concealing the lower surfaces of T-bars surrounding an opening in a suspended ceiling utilizing inverted T-bars can be constructed so as to include tracks on at least one side of the frame and movable clips movably mounted on the tracks. These clips are shaped so as to be capable of fitting around the edges of the T-bars and engaging the upper surfaces of the T-bars in supporting the frame. At least the noted one side of the frame is sufficiently resilient so as to permit this side of the frame to be temporarily deformed in installing the frame so that the clips are hooked over a T-bar.

Abstract: A formation of interior covering material is furnished for a greenhouse or covered atrium enclosure which has an original formation of exterior covering material to achieve a thermal-like insulation structure for the greenhouse-enclosure. The enclosure includes vertically aligned mullions having central portions or standards and marginal flanges extending from a sill to a head. The mullions carry panels of exterior covering material which provide a single glazing. The interior covering material is formed of flexible panels of synthetic resins which are bowed and inserted between the mullion standards and rest on the flanges. Associated members are provided to seal the space formed between the interior and exterior panels and furnish dimensional stability to the interior panels.

Abstract: A wall-mounted structure includes a support which removably holds an inner decorative panel having displays on opposite sides. The inner panel is secured to the support by a mounting means which permits the reversal of the panel to expose either side. A frame is provided with a second mounting means to hold a series of outer decorative panels which can partially or totally conceal the inner panel from view. Each decorative panel is changeable and reversible.

Abstract: The interior wall construction of a passenger railway car is provided with carpeted decorative panels which are fabricated before assembly with the interior wall construction. The attachment of the panels to the wall is provided by extrusions of rigid and resilient shape which permit the panels to be installed by snap-fit interengagement.

Abstract: A solar roof for a building which is transparent to sunlight and protects the building from weather has a synthetic resinous thermal insulating pad disposed on a rigid substrate which closes the top of the building. Laterally spaced plate members are disposed on the pad. Each plate member has conduits therein for carrying a fluid to be heated by solar energy. Means are provided for circulating fluid through the conduits and to a vessel for storing the fluid after it is heated. A generally U-shaped support member having a closed bottom which rests on the pad is disposed in each space between the plate members. The two upstanding legs of the support member terminate in ends having longitudinally extending flanges. A sheet transparent to solar energy is disposed on the flanges and seals the spaces between adjacent U-shaped support members.

Abstract: A window frame assembly is disclosed for facilitating the installation of new or replacement windows. The assembly includes a pair of opposed frame sections each having a generally rectangular configuration and appropriate dimensions to conform to the window opening. Each of the sections include opposed top and bottom components interconnected by opposed end components. In one form, locking means are carried by at least the top and bottom components of each of the frame sections so that they may be slid together and snapped in place in the window opening to form a frame assembly about the frame of the window itself. The top, bottom and end components also carry sealing means which are intended to abut and engage the window frame so as to provide a firm seal with the window itself. In one form, at least a portion of the sealing means are also adjustable to accommodate variations in window thicknesses while in another form the sealing means also serve as a thermal barrier.

Abstract: A pair of panels which may comprise a solar collector having an absorber and a transparent panel are supported on and integrated with a building, such as on a roof. The means of support includes a base mounting member, an intermediate mounting member, a top cover member and a plurality of bearing members. The base mounting member is secured to the building and supports the region of the edges of two absorbers of adjacent solar collectors in substantially contiguous relation. The intermediate mounting member is supported on each absorber and, in turn, supports two plates of the adjacent solar collectors. The top cover member is supported on each plate and each of the top cover members and intermediate mounting member are secured to the base mounting member. Contact between each member and the solar collector is through the bearing members which provide a tight sealing engagement upon securement.

Abstract: An interlocking frame assembly for constructing and supporting a wall system, wherein a plurality of substantially H-shaped support sections are each formed with a pair of flange members extending substantially perpendicularly from a side thereof, with each pair of flange members having a pair of inwardly directed projections and each pair of leg members forming the H-shaped support section also having a pair of inwardly directed projections. A plurality of connecting sections are selectively positionable to engage the inwardly projecting projections of separate support sections to interconnect said support sections in perpendicular or parallel arrangement relative to one another.

Abstract: Window structure for a solar collector shield or the like having a frame defining a row of separate window openings. A self-contained window unit is installed in each opening. Each window unit comprises a pair of rectangular glass panes held in laterally spaced parallel relation by a peripheral window frame. A mounting frame is provided for mounting each window unit in its window opening. Each mounting frame has overlapping frame members. Adjacent side frame members of adjacent window units also overlap. The overlap is for the purpose of excluding moisture and preventing heat loss. A peripheral window seal is provided for the same purpose.

Abstract: Improved panel holding and jointing strips and insulating window assemblies made therewith are disclosed. Hinged perimeter and jointer strips allow the use of insulating panels in large windows with multiple panes and commercial applications where strength and esthetic appeal are important considerations. The strips are also adapted to receive glazing or insulating panels of various thicknesses and are also useful in providing insulating windows for existing prime windows in an array.