Abstract: A vertical exterior weather seal for use in an adhesively glazed curtain wall system has opposing gasket members formed on either side of a central stem. The rear edge of the stem is received within a channel formed in the front wall of a frame member, and splines formed on the sides of the stem adjacent its rear edge engage the walls of the channel to retain the weather seal in place. A pair of curtain wall panels are butt-glazed to the front wall of the framing member on opposing sides of the weather seal, and the tubular gasket members on either side of the stem bear against the mutually facing lateral edges of the adjacent curtain wall panels to seal the joint between the panels. Because the weather seal requires only that a channel be provided on the front wall of the mullion, the seal is easily adapted to a wide variety of mullion configurations.

Abstract: The sealing device serves for tightly sealing the gap (6) between adjacent elements (1) of the inclined facade or roof against the access of water, by forming several sealing planes (A--A, B--B, C--C, D--D). To this effect a network of sealing pieces is created. These pieces each consist of a lower portion (21) and an upper one (22). The lower portion (21) also acts as a support for the elements and comprises a bearing surface (214) each between two sealing lips (212, 213). The upper portion (22) consists of a metal rail (22) and of a sealing stip (222) which overlaps the rail laterally and rest on the elements. That sealing strip which extends in the slope or direction of the fall comprises two substantially vertical webs (228). These webs form a drainage channel for water that may have penetrated, together with substantially parallel lateral sealing lips (224) which also seal the faces of the elements.

Abstract: An insulating panel system, for roof or wall use, includes adjacent insulating panels joined by a connector. The panels include first and second skins adjacent and in contact with opposite faces of an insulating foam core. The first and second skins each terminate in an elongated C-shaped edge. A connector for joining adjacent panels includes an elongated T-shaped channel and an elongated I-shaped channel, for receiving the C-shaped elongated edges of the first and second skins of adjacent panels, and a sheet member joining the T-shaped channel and the I-shaped channel. The foam core is cut away around the C-shaped elongated edges and the remainder of the foam core abuts the sheet member of the connector when the panels are joined. The I-shaped channel and the T-shaped channel each terminates in an elongated lip for retaining the C-shaped elongated edges of the first and second skins. Alternatively both channels may be T-shaped or both channels may be I-shaped.

Abstract: Expansion joint cover assemblies are disclosed which are structured and dimensioned for use in covering expansion joints or spaces between adjacent structural sections of a building such as spaced floors or floor and wall sections. The assemblies include base members adapted to be positioned and secured to the adjacent structural sections and a leaf spring cover member fixedly interconnected to one of the base members at one end and bridging the expansion joint or space between the structural sections in a cantilever manner such that the cover member lies in a plane essentially flush with the floor section or sections and is structured and dimensioned to be slidably interconnected with the other base member to provide a secure, functionally effective and aesthetically pleasing assembly for accommodating translational relative movement of the structural sections.

Abstract: A building panel assembly comprising two or more individual panel members. The panel members in turn are comprised of an outer metal facing sheet forming an exterior panel surface, an inner metal facing sheet forming an interior panel surface and a structural foam core. Once the individual panel members are secured to a structural support, a foam plug is inserted between the panel members to enhance the insulated properties of the assembly.

Abstract: A snap-in glazing pocket filler is disclosed for use with a structural frame member having an unused glazing pocket. The glazing pocket filler includes an elongated metal plate having front and rear faces and being dimensioned to cover said glazing pocket. A pair of plastic retaining legs are fastened to the elongated metal plate and extend rearwardly and outwardly thereof to engage the walls of the glazing pocket. In one aspect of the invention, the plastic retaining legs are pivotably fastened to the metal plate such that when the glazing pocket filler is snapped into the glazing pocket, the legs pivot outwardly to facilitate engagement of the legs with the pocket walls. In the disclosed embodiment, the plastic retaining legs comprise rigid stems having flexible barbs projecting outwardly therefrom to engage the pocket walls. The flexible barbs and rigid stems are coextruded of flexible and rigid polyvinyl chloride.

Abstract: Adhesive foam seals are provided on all flashing components of a sunroom at joints between glazing panels and other structural members. Should water or wind penetrate these seals, primary and secondary drain systems are provided as a backup to collect and control and vent moisture outside the sunroom. A support frame for the glazing panels includes sloped vertical wooden beams strengthened by top and bottom steel plates. The beams are covered with a plastic moisture-proof coating. An adjustable corner flashing is used which compensates for any minor misalignment of front and end walls.

Abstract: A decorative panel as a construction material for use in decorative finish of a building, said panel comprising a sheet of stainless steel as a substrate and a thin colored coat on at least one surface of said substrate and having one or more bent portions where it is bent at an angle of at least 90.degree., said colored coat consisting essentially of from 30 to 60 atomic % of titanium, from 30 to 60 atomic % of aluminum, such an amount of nitrogen that a ratio N (atomic %)/[Ti (atomic %)+Al (atomic %)] is within the range between 0.6 and 1.0 and optionally such an amount of carbon that a ratio C (atomic %)/[Ti (atomic %)+Al (atomic %)] is not greater than 0.25; said colored coat being applied onto the surface of said substrate by a sputter ion plating process, whereby nitrides and carbides of titanium and aluminum are entirely consistently formed to constitute said colored coat.

Abstract: A low cost insulating panel for covering walls of existing structures has an expanded cellular core having complementary stepped side edges of differing width to define depressions in a combination of two panels. The panel has thin flat reinforcing strips along side edges extending upon a front face of the panel and therefrom into the stepped configurations at most to come in contact in the depression formed by two mating panels without extending to a back face of any panel.

Abstract: An expansion joint assembly for use between elongated, adjacent, relatively shiftable, joint-defining structural sections (e.g., floor sections) is provided which exhibits three degrees of freedom for accommodating essentially all relative movement of structural members. The preferred assembly is fire-rated and includes a pair of elongated metallic supports adapted for fixed attachment to a corresponding structural section adjacent an expansion joint, together with an elongated, flexible, U-shaped bridging member. Connection between the bridging member and the supports is provided by means of interfitted, longitudinally shiftable U-shaped elements respectively secured to the supports and the adjacent edges of the bridging member. The metallic supports preferably include abutment structure overlying a corresponding interfitted pair of connection elements, in order to maintain the elements in their proper orientation, even in the event of vertical shifting of the structural sections.

Abstract: A two-piece assembly is provided for filling, sealing and concealing an elongated groove formed in a surface of an automobile body. The groove, measured transversely, is wider at the bottom than at the top. The assembly comprises releasably attachable first and second members. The elongated elastic (molded rubber) first member is manually disposed in the groove and has an elongated slot extending inwardly from the exposed top side thereof. The elongated rigid (plastic) second member comprises a lower portion having serrated opposite lateral sides and an upper trim molding portion. The lower serrated portion is manually inserted in the slot to effect transverse outward expansion of the lateral sides of the first member so that the first member fills and seals the groove and is frictionally secured therein.

Abstract: To create a post for enclosures, partitions, and similar structures consisting of several parts and involving a strip of hollow structural section that will allow the rapid and rational assembly of such enclosures as bar-grid fences and similar structures, whereby disassembly will be impossible without destroying the components, the length (2) of hollow structural section has a gap along one side flanked by two separated flanges (3), which extend either inward or outward and between which are accommodated webs (4) that match the shape of each flange and that are part of a length (5) of more or less T or .pi.-shaped structural section that closes off the gap, leaving room outside on each side of the flanges between the length of hollow structural section and the matching sections of a spine (6) on a length (5) of T or .pi.-shaped structural section, whereby the length of T or .pi.-shaped structural section can be locked into the length of hollow structural section.

Abstract: A prefabricated, modular building construction system uses three basic, proportioned panels, comprising rectangular wall and roof panels and triangular gable panels. The panels are secured together with simple fasteners inserted through aligned openings in adjacent edges of the panels and turned to lock them in place. The gable panels are shaped as right triangles, with the angular disposition of the hypotenuse determining the pitch of the roof and the length thereof having a specific relationship with respect to the length of the roof panels. The lengths of the other two sides also have a particular relationship to the length and width of the wall panels. Thus, the panels may be arranged in any predetermined number and size to define buildings of various sizes and shapes. Each of the panels comprises channel shaped frame members surrounding a rigid insulating core with protective and/or decorative surface layers or sheets laminated on both sides.

Abstract: A system is disclosed to add color to a locking strip gasket curtainwall having a plurality of vertical and horizontal gasket strips; each gasket strip having an outer periphery. The system comprises a mechanism for covering the vertical and horizontal gasket strips. The covering mechanism has an inner periphery having a shape substantially corresponding to the outer periphery of the gasket strips to be adapted to abut the gasket strip. A member projects from the inner periphery of the covering mechanism to secure the covering mechanism into the locking strip cavities of the gasket strips. This member replaces the conventional locking strip. A pigmented mechanism is coupled with the covering mechanism to provide the covering mechanism with a tinted aesthetic appearance.

Abstract: A seal for connecting abutting first and second elastomeric sheets having overlying metallic portions including an elastomeric strip. The elastomeric strip is bonded to the elastomeric portions of the first and second sheets. A metallic plug is attached to the metallic portion of the abutting sheets and is itself covered by a layer of flexible and abrasion resistant material which adheres to the metallic plug and the metallic portions of the abutting sheets.

Abstract: A cabinet corner cap and method of assembly comprising forming metal sheet into a cabinet corner having an elongated space at the junction of two panels of the metal sheet forming the corner. A corner cap is molded from suitable plastic material and has an elongated horizontal top wall with a central longitudinal axis and a vertical wall projecting downwardly from the central longitudinal axis of the top wall and extending a major portion of the length of the horizontal top wall. The vertical wall includes a series of spaced apart ribs perpendicular to and on each side of the vertical wall and diverging away from the vertical wall in the direction of the top wall and joining the horizontal top wall.

Abstract: In a solarium construction, glazing is supported on glazing bars to which the glazing is clamped by means of gasket strips. The glazing bars and strips, which are interconnected are divided into complementary mirror image parts. The force which is used to connect the glazing bar parts together causes the strip parts to be forced together and this displaces the strip parts more tightly against the glazing. This enables a force which is applied within the solarium to be effective externally to fasten the glazing in position.

Abstract: A raised panel paneling system is disclosed comprising a plurality of paneling sheets securable to a substrate, with the edges between adjacent sheets varying between edge-to-edge abutting relation to a substantial maximum permissible gap therebetween so as to permit the sheets of prescribed widths to cover the substrates of varying widths within a limited range. A horizontal rail, such as a chair rail, is applied to the sheets at a predetermined distance so as to divide the sheet into a first portion and a second portion. A stile is applied to the adjacent edges of the sheets so as to cover the joint or the gap between adjacent sheets. A horizontal rail, such as a base board, is applied to one portion of the sheets, and another rail, such as a crown molding rail, is applied to the other end of the panel sheets.

Abstract: A partition wall in which a plurality of sections are adjoined by a plurality of vertically spaced apart hollow clips having a tightenable screw protruding from each to which a section of wall is to be affixed, with each screw head being placed through a hole in the web of a metal stud near the end of each wall section, with the screw head screwed tight against the stud web material.

Abstract: A roof panel juncture securely couples in a water sealed, abutting manner facing edges of adjacent, generally planar roof panels along the pitch of the roof. Each panel includes an upper sheet metal facing, a lower vinyl covered wood facing, and a core of rigid foam insulation sandwiched therebetween. The lateral edges of the panel's upper sheet metal facing are each provided with a 90.degree. upturned portion, the upper end portion of which is further bent downward at an acute angle toward the plane of the sheet metal facing to form a hook and drip-edge. The adjacent upturned facing edge portions of abutting panels are adapted to receive in sliding engagement along the lengths thereof a generally concave, elongated, linear roof batten which maintains adjacent roof panel edges in tight-fitting engagement so as to form a water-tight seal therebetween. The adjacent lateral edges of the lower facings of each of the roof panels are adapted to receive a ceiling batten therebetween along the length of the panels.

Abstract: Panel joining means that include a pair of identical elongated edge connectors secured along one edge of each panel to be joined and a bridge for attachment between the connectors. The edge connectors are cut from a single extrusion, are positioned to face each other, and are dimensioned so they can be secured to the panel before the finish lamina is applied by rollers or presses. The bridge is an extrusion that is symmetrical in cross section. It has continuous flanges along each side that register with complementary flanges on the connectors to complete positioning of the panels for joining. Changing configuration of only the bridge web will change the angle between adjoining panels.

Abstract: A cross-like structural joint element having a pair of aligned lateral arms each formed with an anti-slip pedestal projecting from one face; a U-shaped first connector member having a pair of spaced legs projecting perpendicularly from said one face at adjoining ends of the lateral arms, facing surfaces of the legs having inwardly inclined teeth, and a second connector member projecting perpendicularly from the other face of the lateral arms at the adjoining ends; this connector member having a narrow neck portion joining the lateral arms and a wide portion extending from the narrow neck portion.

Abstract: The construction element comprises a profile frame, a filler material and two cover panels which cover the filler material and the profile frame. The profile frame comprises a profile section having an axially symmetrical cross-section which forms a groove-like recess in which a connector element is frictionally engagingly insertable and arrestable. In a building construction system with construction elements erected, the construction elements are fastened on one side to a framework, connected with another construction element on the opposite side by the connector element and supported on the edge of the third side. These construction elements can be assembled in the manner of a construction set, for instance like a child's toy (Lego) and the requirements for tools and plant are very modest.

Abstract: A wall panel joiner is provided for securing wall panels in edge to edge relationship. The joiner comprises a pair of clamping elements which are provided with flat outer faces, each element including a pair of spaced flanges. Locking means is provided on the flanges so that the clamping members may be secured together to retain the wall panels in edge to edge relationship. The locking means may be released only by first sliding one clamping member longitudinally with respect to the other clamping member.

Abstract: To avoid a flimsy arrangement of a roof or outside covering composed of individual plate elements on three-dimensional trussing, and also to produce a solid roof or outside covering, holding spaces are provided on the tops of elongated members of the three-dimensional trussing. The spaces have a smooth cup-shaped cross section, into which the outside edges of plate elements are inserted with their parts which are also in cup-shaped cross section, which serves to hold packing strips. First, plate elements are connected with the elongated members by cover rails with downwardly angled arms, which are fastened by screws to each member, and then packing strips are pressed into the cup-shaped outside edges of plate elements, so that plate elements are attached to members of the three-dimensional trussing with packing, which forms a tight roof or outside covering.

Abstract: A glazed partition system adaptable to various angles of intersection comprises an L-shaped mullion having a socket at its upper end in which two opposed glazing rails are pivotable and an arcuate flange at its lower end which releasably engages one glazing rail and slidably engages the opposed glazing rail. The sills 14 and 16 are placed at the desired angles and the glazing rail 38L and the mullion 18 are fastened at right angles to the sills 16 and 14, respectively. The glazing rail 38R is then snapped onto the mullion 18 and the window panes 50L and 50R are set in place. A plurality of similarly shaped pivot clips may be used in place of the elongate mullion.

Abstract: A panel installation comprising a layer of panel pieces supported on a supporting surface. An anchoring element secures adjacent pieces to the supporting surface which has wing flanges seated in slots presented by adjacent panel pieces. A cover strip seats within a receptor channel defined in an anchoring element.

Abstract: A panel and gutter assembly includes a number of panels and gutters, each of which is located between two adjacent panels. Each gutter is generally U-shaped and is open along the top to collect water. Edge portions of the panels overlap the gutters, so that water overflowing from the panels will run into the gutters. A plurality of clips are provided for securing the gutters to the panels, and a batten member is provided covering a gutter.

Abstract: A resilient, pressure-locking filler strip is provided for closing a gap or joint of a wall panel assembly. The filler strip has a flange portion for enclosing the gap and a pressure-locking clip for compressive retention in the gap. The clip is selectively cooperable with the flange portion for ready interchange of a plurality of different size clips for retention in a plurality of different size gaps. The clip includes first and second opposed gripping portions for compressive engagement to associated side wall portions of the gap. In one embodiment the flange portion comprises a first flange and a second flange depending normally away from the first flange for enclosing a gap or joint at a wall corner. In another embodiment the flange portion comprises a first flange and a second flange coplanar with the first flange for enclosing a gap in a flat wall section of the wall assembly. Preferably, the pressure-locking filler strip is a plastic extrusion.

Abstract: An apparatus for connecting upper and lower curtain wall units in a unit type curtain wall in which the upper curtain wall unit may be simply and easily connected to the already mounted lower curtain wall unit. The connecting apparatus comprises a connecting member having an upper portion connected to a lower horizontal frame member of an upper curtain wall unit and to a horizontal batten of the lower horizontal frame member, and further having a lower portion connected to an upper horizontal frame member of a lower curtain wall unit and to a horizontal batten of the upper horizontal frame member.

Abstract: Sheet metal covering elements for an electrostatic precipitator are held in place by "C" shaped metal clips which engage over flanges of the I beams on which the sheet metal elements rest. The clips are provided in interstices between spacedly juxtaposed edges of the sheets and the interstices are then closed by sealing strips which are seam-welded to the sheets.

Abstract: For mounting plates (4) to a framework structure, the channel members (1) which constitute the structural members of the framework are adapted to receive fastener members (2), so that plates (4) which are fastened to the framework structure are firmly secured to the frame by the fastener members (2) as a result of friction or a latch connection between the fastener and the channel members (1) which form the framework structure.

Abstract: The present invention is directed to a novel cover member for insulation boards and a novel method of installing such boards in which said cover member is generally of inverted T-shaped configuration with an added strip extending outwardly from the vertical web of said cover member to confine one edge of an insulation board. The method of installation is a progressive step method, using the novel cover members of the invention.

Abstract: An elongated sealing and decorative gasket having a head portion and a mounting portion, the head portion being adapted to cover a channel into which the mounting portion is inserted and the mounting portion having a shape, in cross-section, generally of a diamond with an open center.

Abstract: An assembly for fixing wall panels to a rearwardly positioned support structure, including a plurality of support rails having their longitudinal extent directed perpendicularly to that of the wall panels, and a method for fixing wall panels to such support structure by means of this assembly.

Abstract: Disclosed is a generally rectangular prefabricated concrete panel having a pair of edge defining members along each lateral edge with a maximum distance at the upper and lower extents of the panel, but with a concrete body portion having substantially parallel lateral edges with a width less than the minimum distance between the edge defining members.

Abstract: An improved extruded resilient flush-look window molding adapted for pre-attachment to a glass plate for concealing the gap between a body panel window opening and the edge of the glass plate. The molding has a stem portion with first and second self-biased retaining legs on one side thereof, adapted to engage the glass edge and a diverging third leg extending from the stem portion opposite side supporting an integral arcuate sectioned trim strip in cantilever fashion on the diverging leg upper end. The trim strip projects inwardly to overlie the gap and the molding stem portion. The divergent leg is self-biased for cammed inward flexing during insertion of the glass plate. Thus, the trim strip self-adjusts inwardly so as to maintain its engagement with the plate outer surface while accommodating production tolerance gaps.

Abstract: An end lap seam construction for metal roof panels in a standing seam roof is provided wherein a continuous water-tight seal extends around the entire periphery of each panel. Mating factory installed mastic strips are employed to seal the standing side seams of adjacent panels. The end lap seam of the present invention incorporates a mastic tape which may be field-applied without any great degree of precision to mate with and bond to the side seam mastic strip of an overlapping mating panel.

Abstract: Disclosed is a corner post (90, 100) and zipper trim (40, 50) for aluminum siding (28) which may be applied after the siding (28), thus permitting preassembly of the siding (28) to factory built wall components (14, 16, 18) while avoiding on site customizing of the zipper and corner post. The zipper trim and the corner post trim are each made of two members, a supporting member (40, 90 respectively) and a finish zipper or corner trim member (50, 100 respectively). The support members (40, 90) are secured to the wall components (14, 16, 18) after the wall components (14, 16, 18) have been assembled at the site. The zipper trim (50) and corner post trim (100) members are then snapped into place in engagement with their respective underlying support members (40, 90).

Abstract: A building construction comprising a plurality of panels. Each panel comprises spaced sheets and a plurality of spaced longitudinally extending truss members. Each truss member comprises a pair of channels and an undulating member comprising alternating first and second apices connected by legs, the apices being bonded to the channels. At least one of the sheets has longitudinally extending grooves receiving the truss members. The grooves have a cross sectional configuration conforming to the cross sectional configuration of the channel of the truss member. The channels are fastened to the sheet. The panels may be used in the side wall or roof of a building.

Abstract: A vertical siding system for an exterior building wall, including vertically oriented panels mounted in flush side-by-side array on supporting structure of the wall and vertically oriented cover members covering the joints between adjacent panels and interlocked with the panels. The cover members have locking flanges along their side edges for insertion in locking grooves formed in side portions of the panels, and are resiliently deformable so that they can be snap-fitted onto the panels after the panels are mounted on the wall. The panels and cover members may be designed to cooperatively simulate the appearance of conventional board-and-batten wooden siding.

Abstract: An elongated shingle assembly and method for assembling the same. The assembly extends vertically from the top of a roof to the eaves and has a plurality of elongated flat shingle members interconnected by connection assemblies. Each connection assembly has a flange member with two vertical walls on opposite sides thereof and a shelter member connecting the walls and covering tops of the walls. The bottom of each wall extends away from the wall in a horizontal direction to form a member adapted for connection to a roof. A pair of flat shingle members, each having a brim portion, are brought to fit against the outside surfaces of the vertical walls of the flange member and positioned under the shelter member, with the brims being forcibly curled in a vertically upward direction so as to be covered by flaps formed at both sides of the shelter member.

Abstract: Roofing means including a roof panel. Means are provided for securing the roof panel onto a roof frame including elastic clamping means joining the panel in tensioned relation to the frame and a deformable elastic sealing member secured between the clamping means and the panel and covering the clamping member. The roof panel may be a thin translucent plastic sheet.

Abstract: A fluid-sealed sheet metal joint includes a first and second sheet each having an edge with a turned-under flange. A clip includes a base with two parallel edges with a turned-over flange along each of these edges. A core has a cap with two parallel edges, and along each of these edges a U-shaped flange. This structure is assembled with various of the flanges overlapping and flattened to create a fluid sealing joint. Preferably there is also an elastomeric sealant in the joint.

Abstract: The side-by-side panels of a standing T-rib roof can be provided in any necessary lengths due to a smooth telescopically interfitting arrangement lengthwise between adjacent panel sections. One end portion of each panel section is tapered without cutting or crimping the metal thereof and when slipped endwise into the untapered end portion of another panel section forms a smooth slip joint of uniform cross sectional dimensions in relation to the complete assembled panel. An improved clip for attaching roof panels to underlying purlins features a vertical standoff space between the clip attaching feet and lateral panel support branches thereabove so that a thermal insulation blanket can be placed in the stand-off space. This vertical stand-off space greatly decreases the thermal conductivity of the metal roof and, therefore, increases the thermal value.

Abstract: A direct air heating solar energy collection apparatus and glazing system therefor are described. Unique framing members are utilized to create modular collector assembly panels, to provide a glazing system for the collectors, and to contain reflective trapping members in a precision spaced array. The framing members are formed in cross sectional shapes that admit of multiple uses in the overall frame structure of the apparatus, some of the members being utilized for a plurality of different mechanical functions within the framing system.

Abstract: This invention pertains to a wall frame construction in which metal studs or frame support members are formed with a panel supporting face. In this face is formed a longitudinal slot or slots terminating at a substantially right angle undercut which provides an internal lip which is substantially parallel with the panel supporting face surface. In combination with the stud is provided a J-clip having a front strip portion and at substantially right angles to its rear face is a stem portion. This stem portion at its free or distal edge is bent into a ninety degree curve and terminates with a very short straight lip extending portion. This curved stem portion of the J-clip is inserted into the slot in the face of the stud and the J-clip is then rotated to bring the lip extending portion behind the internal lip of the undercut in which position the front strip portion of the J-clip provides opposed grooves or channels for retaining the edge of a panel inserted thereunder.

Abstract: A system for joining and adhering a pair of abutting panels to a rigid substrate and providing a seal against thermal and moisture transfer. The system is comprised of an elongated receptacle member with a base and a pair of spaced vertical elements extending upwardly from the base and forming a channel, to be placed under and between edges of the panels to be joined. The receptacle member is firmly attached to the rigid substrate by fastening means passed through the base. The adjacent side walls of the vertical elements include a plurality of vertically spaced, downwardly angled teeth projecting inwardly towards the center of the channel. An elongated resilient insert member includes a cap and a projection extending downwardly from said cap.

Abstract: The head portion of a T-shape strip of elastomeric material is threaded lengthwise into the undercut sides of a channel formed in one of two members to be joined together so that the stem or body portion of the strip projects therefrom. The strip is so located, and this projecting stem portion is of such thickness, as to enter a narrow channel with serrated sides formed in the other of said members. Supported as on a fulcrum on a narrow neck portion projecting from the free edge of the strip stem portion, and spaced slightly from the stem portion, is a transversely curved portion which is slightly wider than the serrated channel. Upon movement of the two members toward each other, the stem portion forces the transversely curved portion to flex, and enter into the serrated channel, in which position the edges of the curved portion are in gripping relation with the channel serrations, and thus resist its withdrawal.

Abstract: A joint system for wall panel construction, particularly adapted for use with metal studs. The system provides a batten cover element which is positioned to overlie the junctions between panels of a wall panel structure having butt joints, inside corners, and/or outside corners. The system of the invention utilizes a receiver element which is adapted to be fastened to the framework studs which underlie the junction, the receiver element having a portion which projects outwardly between the panels and terminates in a locking flange. The receiver element is identical for all junctions and separate batten cover elements cooperate with the locking flange to cover the junctions, the batten element having one form for a butt joint, a second form for an inside corner, and a third form for an outside corner, each form providing one wing having a locking channel to receive the locking flange of the receiver and adapted to overlie one panel and a second wing to overlie the other panel.