Abstract: A method of including the selection of cementitious fiber wallboard panels coated on the exterior surface by a coating of water based acrylic to control the fluid absorption rate therethrough. Such wallboards are installed on a building frame with the adjacent edges of the panels forming narrow gaps for receipt of suitable caulk to such gaps and applying a high build flexible resinous latex emulsion over the coating and joints and allowing it to cure at a rate dictated by atmospheric conditions and the fluid absorption rate of such coating and tape.

Abstract: An expansion joint cover for bridging an expansion gap between first and second building floor members has a pivot frame adapted to be affixed to the first building floor member, the pivot frame including a base portion and a longitudinally continuous bearing of spherical cross-section supported by and located above the base portion, and a slide frame adapted to be affixed to the second building floor member. A cover unit is pivotally mounted in spaced-apart relation to a proximal end thereof on the bearing in cantilevered relation to the bearing, is adapted to span the gap, and has a distal end supported on the slide frame. A plurality of spaced-apart compression spring units engaged between the base portion of the pivot frame and a portion of the cover unit intermediate the proximal end and the bearing bias the cover unit about the bearing so as to forcibly engage the distal end of the cover unit with the slide frame.

Abstract: A seismic expansion joint cover includes a bridge panel having one end supported for movement in the y-axis direction and against movement in the x-axis direction relative to a floor A on one side of a motion-absorbing gap and supported at the other end for movement in the x-axis direction and against movement in the y-axis direction relative to a floor B. A recess in floor B receives a portion of the bridge panel in all positions of the bridge panel relative to floor B. A recess cover plate covers the recess, is supported at one end in sliding relation on the bridge panel in all positions of the bridge panel relative to floor B and is joined at the other end to an end member of the recess frame remote from the gap. A resiliently collapsible/extensible honeycomb panel received in the recess in floor B supports the portion of the recess cover plate that spans the recess between the end of the bridge panel and the end member of the recess frame.

Abstract: A vibration resistant expansion joint is provided. The expansion joint includes a sustaining pedestal (1) which is formed from two L-shaped members (111 and 112). A plurality of shim assemblies (12), each containing a bifurcated tooth-like shim (121), are pivotally joined to the sustaining pedestal (1). Additionally provided is a foundation (3) formed of two L-shaped side members, each side member having a slide surface (33, 34) formed along a bottom edge thereof. A stepped bench unit (2), formed of a pair of benches, is slidably mounted on foundation (3).

Abstract: Resilient and flexible grout seal strips for sealing off a space formed between the bottom of a concrete panel and a support beam on which the panels are supported, concrete panels, decks, and support beams having resilient and flexible grout seals and methods for fabricating such panels, beams and decks are disclosed. The grout seal strips have a first longitudinal edge adapted to be anchored on either the bottom of a precast panel or the top of a support beam adjacent the respective side edge thereof and extend substantially the length thereof, and have an opposed second longitudinal edge with a wide sealing portion therebetween adapted to engage the other of the panel bottom or the beam top adjacent the respective side edge thereof and form a sealing relation therewith.

Abstract: The invention relates to a sealing device consisting of two contiguous building elements made of concrete, steel, reinforced concrete, cast iron or other materials, and a shaped sealing element made of an elastomer material which is inserted into a recess and bridges the gap between the building elements in a sealing manner. The building elements are in particular segments which are assembled into a tube-like tunnel such that transverse and longitudinal joints are formed. Each segment has a recess which runs around all bearing surfaces and has two outer side faces and a base side. A rod-shaped sealing element is positioned in the recess. According to the invention the recess within the central area of its base side has a support for the shaped sealing element such that two parallel recesses are formed. Each recess has an outer side face, an inner side face and a base side and a shaped body is housed in each recess.

Abstract: A seismic expansion joint cover includes a bridge panel having one end supported for movement in the y-axis direction and against movement in the x-axis direction relative to a floor A on one side of a motion-absorbing gap and supported at the other end for movement in the x-axis direction and against movement in the y-axis direction relative to a floor B. A recess in floor B receives a portion of the bridge panel in all positions of the bridge panel relative to floor B. A recess cover plate covers the recess, is supported at one end in sliding relation on the bridge panel in all positions of the bridge panel relative to floor B and is joined at the other end to an end member of the recess frame remote from the gap. A resiliently collapsible/extensible honeycomb panel received in the recess in floor B supports the portion of the recess cover plate that spans the recess between the end of the bridge panel and the end member of the recess frame.

Abstract: A seismic expansion joint cover assembly installed at a motion-absorbing gap between a member A on one side of the gap and a member B on the other side of the gap includes a cover panel spanning the gap and a hinge joining one edge A of the cover panel to the member A for pivotal movement about a pivot axis. The pivot axis is spaced apart from the expansion gap so as to enable a stop between member A and the cover panel to prevent the cover panel from pivoting about the pivot axis into the expansion gap upon widening of the expansion gap. A permanent magnet and magnet striker releasably secure the other edge B of the cover panel to the member B. A tensioned cable connected between the cover panel and one of the members A and B limits the pivoting movements of the cover panel and automatically recloses the cover panel over the gap.

Abstract: A floor system composed of a finished flooring preferably secured to a subfloor, a plurality of shock absorber members are fixed to the bottom surface of the floor surface at spaced intervals and in which each of the shock absorber members includes an elastomeric base member provided with a cavity which accommodates an insert member for adjusting the cushioning ability of the base member.

Abstract: An apparatus for lifting and stabilizing sunken or settled foundations, slabs, footings, etc. includes a lifting plate having a pipe section solidly secured thereto, for passing concentrically over the anchor pier used in such operations. The concentric lifting plate pipe precludes cocking or tilting of the plate relative to the anchor pier and foundation structure, thereby greatly improving the security of the lifting operation. As a result of the increased lifting plate stability provided by the present invention, only a single clamp is needed for securing the lifting assembly to the foundation. The clamp is adjustably positionable as required, to secure to a solid area of the foundation structure. The present system secures the plate to the pier using mechanical fasteners, thus precluding requirement for costly welding and other metal forming equipment. A method of raising or stabilizing a foundation or similar structure using the present apparatus, is also disclosed.

Abstract: The invention relates to a joint cover comprising a base section to be fixed onto a support; a covering section; and one or more intermediate parts designed to receive the covering section by clipping, the intermediate part or parts defining a cavity for receiving a head of a longitudinal tab that the covering section comprises, and comprising on each side of a plane passing through an opening for access to the cavity, at least one external rib able to co-operate, by clipping of opposite shapes, with means of a longitudinal gully of the base section, and at least one internal tab for retaining said head in the intermediate part

Abstract: The present invention relates to a concrete construction that comprises a concrete slab and a ductile strip adjacent the slab. The ductile strip comprises an engineered cementitious composite of cementitious material and reinforcing fibers with the ductile strip being directly bonded to the slab. The present invention also relates to a method of making or repairing a concrete construction, the method comprises providing a ductile strip adjacent a concrete slab, wherein the ductile strip is made of an engineered cementitious composite comprising cementitious material and hydrophilic and/or hydrophobic reinforcing fibers. The present invention further relates to a roadbed or building floors suitable for vehicular traffic, the roadbed comprises a plurality of slabs and ductile strips comprising an engineered cementitious composite of cementitious material and reinforcing fibers.

Abstract: Sealed expansion joints comprise first and second joint members each having a backside surface adapted for installation against a planar surface. The first joint member further comprises at least one angular surface section that is designed to facilitate moisture passage thereover when installed onto an underlying wall structure. The first joint member also includes a groove disposed therein between the backside and frontside surfaces. The second joint member is positioned adjacent the first joint member, e.g., either below the first joint member or to the side of the first joint member, and includes an outwardly projecting tongue that extends towards first joint member. The tongue is disposed a desired depth into the groove. Together, the first and second joint members form a channel that extends therebetween. A sealing member is disposed within the groove and is interposed between the tongue and the groove.

Abstract: An expansion joint cover for bridging an expansion gap between first and second building floor members has a pivot frame adapted to be affixed to the first building floor member, the pivot frame including a base portion and a longitudinally continuous bearing of spherical cross-section supported by and located above the base portion, and a slide frame adapted to be affixed to the second building floor member. A cover unit is pivotally mounted in spaced-apart relation to a proximal end thereof on the bearing in cantilevered relation to the bearing, is adapted to span the gap, and has a distal end supported on the slide frame. A plurality of spaced-apart compression spring units engaged between the base portion of the pivot frame and a portion of the cover unit intermediate the proximal end and the bearing bias the cover unit about the bearing so as to forcibly engage the distal end of the cover unit with the slide frame.

Abstract: A bridge device for providing a transition between two bordering floor segments of different levels includes a securement shank, a terminal shank and a transition shank. The securement shank is positionable under one of the bordering floor segments which are separated by a space. The terminal shank has spaced upper and lower ends and opposite sides extending between the upper and lower ends. The terminal shank is attached at the lower end to the securement shank and is positionable in the space between the floor segments. One side of the terminal shank is disposed adjacent to and faces toward the one floor segment whereas the other side of the terminal shank faces toward the other floor segment.

Abstract: The invention concerns a permanently functional gap seal on structures, in particular building structures, which ensures a reliable seal against penetrating moisture, this being achieved in that the cover layer has a profile which can be adapted to an installation situation over a joint or on an inner or outer corner and has a central part and side wings disposed on both sides of the central part, and in that at least the side wings have contact surfaces for contacting a sealant.

Abstract: Disclosed is an expansion joint guide for constructing a multi-course masonry block wall. The guide has an elongated flat planar base of a rigid material and an elongated planar leg the length of which is less than the thickness of the blocks of the wall to be constructed and the thickness of which is the desired thickness of the joint between laterally adjacent blocks of the wall. The leg extending substantially perpendicular to the base to serve as a locator for the masonry blocks forming the sections of the wall on either side of the guide and means preferably in the form of fasteners or adhesives are used to secure the base to an underlying wall.

Abstract: A locking ground hole cover is disclosed comprising a cover plate with a scissor-type apparatus suspended therefrom which apparatus can be actuated from above the cover plate. The apparatus allows for the locking of a hole by pulling the cover plate down into a sealed locked position with the hole mouth. Variations on the device are disclosed.

Abstract: Variable gaps between adjacent concrete panels are covered and sealed by a T-shaped body of extruded semi-rigid plastics material and which includes a one piece cover section and stem section of generally uniform wall thickness. The stem section has a set of parallel spaced flexible fins projecting from each side at an angle of 45° towards the cover section, and the fins increase in width from the distal end of the stem section towards the cover section. Each fin has parallel spaced triangular gripping ribs on its side facing away from the cover section for gripping opposing concrete surfaces defining gaps ranging generally from ½″ to 1¼″. In one embodiment, the cover section has a slightly crowned intermediate portion with tapered opposite edge portions, and in other embodiments, the intermediate portion is curved or configured to cover gaps defined within outside and inside corners formed by adjacent panels.

Abstract: A expansion joint cover for covering the top or exposed side of an expansion joint in a structure. The expansion joint cover includes a plate having top and bottom faces, and a pair of sides. The plate also has a plurality of spaced apart fastening holes therethrough extending between the top and bottom faces of the plate. Each fastening hole comprises upper and lower portions. The outer diameter of the upper portion of each fastening hole is greater than the outer diameter of the associated lower portion of the respective fastening hole such that each fastening bore has an annular shoulder formed between the upper and lower portions of the respective hole.

Abstract: A resilient flooring formed over a base floor which includes a plurality of parallel spaced channel members secured with the base floor. Each channel member which forms a channel includes a base, spaced vertical sides and inwardly directed rims secured at upper ends of each of said sides. At least one resilient member is positioned between adjacent of the channel members and sub-floor panels are arranged between the channel members over the resilient member. Opposed ends of the sub-floor panels adjacent the channel members are formed with a recessed shoulder. Adjacent shoulders form a groove across the sub-floor panels. Flooring strips are secured with the sub-floor panels forming a flooring surface. Clips which engage the rims of the channel members and with the shoulders of the sub-flooring panels, act to secure the resilient flooring a maximum position away from the base floor while allowing movement toward the base floor.

Abstract: Resilient grout seal strips for sealing off a space formed between the bottom of a concrete panel and a support beam on which the panels are supported, concrete panels, decks, and support beams having resilient grout seals and methods for fabricating such panels, beams and decks are disclosed. The resilient seal strips have a first longitudinal edge adapted to be anchored on either the bottom of a precast panel or the top of a support beam adjacent the respective side edge thereof and extend substantially the length thereof, and have an opposed second longitudinal edge with a wide sealing portion therebetween adapted to engage the other of the panel bottom or the beam top adjacent the respective side edge thereof and form a sealing relation therewith.

Abstract: A fire resistant gasket for architectural joints comprises an intumescent material mat having a first major surface and a second major surface, wherein at least one of said first and second major surfaces has coated thereon an adhesive. A fire barrier is provided comprising: at least one fire resistant intumescent gasket material having a first major surface and a second major surface, wherein at least one of said first and second major surfaces has coated thereon an adhesive, and at least one fire resistant material barrier layer bonded to a portion of one of said first and second major surface, preferably adhered to a portion of said adhesive coated gasket surface.

Abstract: A method and apparatus for providing for expansion and contraction in modular building panels provides a quickly insertable shim structure that can be placed between modular building panels adjacent bolt that secures the panels together. The shim is inserted into a gap formed between two adjacent members that are to be joined from a location external to the panels. The shim is U-shaped so that it passes over a bolt for securing the members together. When the bolt is tightened, the shim forms a permanent gap-forming structure. The adjacent members can be vertical members or horizontal members. This shim is inserted at a location on the adjacent members between interconnected transverse members so that the transverse members can expand into the gap with corresponding flexure about the shim of the adjacent members.

Abstract: In order to join concrete products to be joined together each having an joining face, an opening formed in the joining face, and an attachment hole communicating with the opening, a junction member body has on its at least one end a swelled protruding portion which is inserted through the opening into the attachment hole. The junction member body further has a plurality of spaces for cleavage extending along the direction of thickness of the junction member body, each of the spaces for cleavage being cleaved open by an external force caused by an earthquake or the like, to present satisfactory extensibility and collapsibility.

Abstract: A method for restoring load transfer capability across a joint between two adjacent concrete slabs includes cutting a slot perpendicularly to the joint and extending into each of the adjoining slabs. The slot and joint are then integrally filled with polymer concrete to tie the slabs together. A joint tie may be placed in the slot and encased by the polymer concrete when restoring load transfer capability.

Abstract: A floor system composed of a finished flooring preferably secured to a subfloor, a plurality of shock absorber members are fixed to the bottom surface of the floor surface at spaced intervals and in which each of the shock absorber members includes an elastomeric base member provided with a cavity which accommodates an insert member for adjusting the cushioning ability of the base member.

Abstract: A bridging means for joint gaps between building components with an expansion joint construction bridging the joint gap, which is mountable on both sides of the joint gap on the building parts, is characterized in that at least between one of said building components and the expansion joint construction a safety means is arranged which is of such construction that said expansion joint construction will be guided out of the joint gap, if a limiting force acting between said building components is exceeded. Said safety means preferably is formed as slide ramp means between said expansion joint construction and the building component.

Abstract: Cladding units for a building and a seal structure for the joints thereof are disclosed. A cladding unit comprises a cladding member consisting of a framework and a face member attached to one side face thereof and fastener stringers for waterproof slide fasteners attached one each to the outer lateral parts of the cladding member. In a seal structure for the joint to be formed between the opposed frameworks of the cladding units mutually adjoined and attached to the backing member on the building, the joint formed between the adjoining cladding units is sealed by uniting the engaging parts of the opposed fastener stringers of these cladding units and the gap between the end parts of the fastener stringers and the gap between these end parts and the backing member of the building are sealed by filling the gaps with a wet sealing material.

Abstract: A crack inducer plate assembly for concrete structures having a volume and an outer surface includes an elongated and rigid core plate for extending in the volume at a location spaced from the surface, the core plate having opposite sides. A waterproof and resilient waterstop member is fixed to and covers the opposite sides of the core plate. Crossplates are welded to the core plate to anchor the core plate to reinforcing bars in the concrete. Cracks are formed in a controlled manner within the volume and by the waterstop member.

Abstract: An expansion joint control system wherein a blockout is formed between structural members such as a floor or wall and a gap allowing for expansion and contraction is defined between the structural members. The blockout defines opposed vertical faces and inwardly extending transverse surfaces with a flexible membrane spanning the distance between vertical faces. A slide plate is attached beneath the center of the membrane. Base members are positioned on the transverse surfaces for supporting the sides of the membrane and are in sliding contact with the slide plate. The slide plate and base members are formed of polymeric materials preferably having thermal expansion characteristics similar to concrete. The system elements occupy a blockout having a depth of one inch or less. The polymeric material can be readily bent on site making the system particularly useful for stadiums, etc. which have continuously changing elevations.

Abstract: Cladding units for a building and a seal structure for the joints thereof are disclosed. A cladding unit comprises a cladding member consisting of a framework and a face member attached to one side face thereof and fastener stringers for waterproof slide fasteners attached one each to the outer lateral parts of the cladding member. In a seal structure for the joint to be formed between the opposed frameworks of the cladding units mutually adjoined and attached to the backing member on the building, the joint formed between the adjoining cladding units is sealed by uniting the engaging parts of the opposed fastener stringers of these cladding units and the gap between the end parts of the fastener stringers and the gap between these end parts and the backing member of the building are sealed by filling the gaps with a wet sealing material.

Abstract: Portal apparatus (40) is provided for interconnection between adjacent first and second structures (32, 34) in order to maintain operative communication between the structures (32, 34) under seismic conditions. The apparatus (40) includes a portal assembly (36) together with coupling assemblies (38, 40) permitting translation and rotational movement of the portal assembly (36) about three orthogonal axes (X, Y and Z) in space. The first coupling assembly (38) serves to secure assembly (36) to structure (32) and permits rotation about and translation along the X axis, as well as rotation about the Y and Z axes. The second coupling assembly (40) slidably connects the remote end of assembly (36) to structure (34) and accommodates Y and Z axes translation.

Abstract: A seal for covering a track in a floor is disclosed which is flexible in the upward direction to permit an arm or the like moving on the track to pass through the seal and is considerably less flexible in the downward direction into the channel and capable of supporting a person or equipment traversing the channel. The difference in flexibility in the two directions is obtained by providing a relatively thin material in the area of the hinge section and a relatively thicker material in the cover portion extending over the channel. The relatively thicker material section may be formed by affixing a narrow strip of flexible material to a wider strip of the material. The narrow strip may be affixed to the wider strip by welding or fusing.

Abstract: A method for forming single coat synthetic stucco finished exterior walls. Cementitious fiber wall board panels are installed on a building frame with the adjacent edges of the panels forming narrow gaps. Polyurethane caulk is applied to the gaps, and low profile fabric backed joint sealant tape is applied over adjacent edges of the panels to cover the gaps and the caulk therein. A high build flexible resinous latex emulsion is next applied directly over the panels and adhesive tape to form a synthetic stucco finish.

Abstract: A novel S-shape web section in a dog bone style expansion joint belt, having a very significant increase in the ability to define a successful seal even in misaligned or otherwise off-specification expansion joint environments. The web section has the potential of significantly increasing belt service life in contrast to a conventional OEM belt, due to lower stress levels at finite element locations proximate to the mid-span, and particularly on the convex inner surface of the belt during high vacuum situations. The web preferably has only 3 layers of polyester or nylon fabric, each with an intermediate skim coat of neoprene rubber, to bond the fabric plies together and also to bond the fabric core with an outer covering of black neoprene rubber or Viton rubber. The fabric plies may extend longitudinally inside of the end knobs or be splayed outwardly inside of each end knob to avoid need for a separate cord or a cord and a key.

Abstract: Cladding units for a building and a seal structure for the joints thereof are disclosed. A cladding unit comprises a cladding member comprised of a framework and a face member attached to one side face thereof and fastener stringers for a waterproof slide fastener attached one each to the outer lateral parts of the cladding member, the fastener stringers each comprising a waterproof tape and an engaging part provided with a multiplicity of coupling elements attached to the waterproof tape as spaced at fixed intervals along one longitudinal edge thereof, the end parts of the waterproof tapes of all adjoining fastener stringers being integrally joined, and the joined corner parts of the waterproof tapes protruding from the corner parts of the framework. The joint formed between the adjoining cladding units is sealed by coupling the engaging parts of the opposed fastener stringers of the cladding units.

Abstract: Improved sports flooring for practicing sports indoor as in sports halls, for example basketball, football, handball, volleyball, etc. It has improved biomechanical characteristics and the vertical bouncing height is higher than 90%, having also a friction coefficient appropriate to run and rotate rapidly. It is comprised of a double-panel marine (quality) plywood (1,3) joined to each other with angle offset of 45.degree.. Elements or feet (2) made of rubber or the like, in contact with the ground, are added or stapled to the lower panel (1). On the visible face of the second marine panel (3) is applied a layer of glue for lying sticking the agglomerated cork sheets (4), in a joined configuration. Finally, two varnish layers (5) are applied.

Abstract: A corner area has a corner piece which is inserted between two ends of the sealing profile strip of a sealing structure and is joined thereto. To facilitate the deformability of the corner piece when the sealing structure is pressed together under pressure, the structure has recesses. These recesses are disposed at an angle to cavities in the ends.

Abstract: A joint-masking device (10) for joints in wall or floor coverings consists of a base profile (12) with a proud ball head (22) and a masking profile strip (14) with a socket pointing downwards which is formed from two coaxial walls (34, 36) curved into a circular cylinder. The walls (34, 36) extend around the ball head (22) by more than 180.degree., so that the two strips (12, 14) can lockingly engage. The masking profile strip (14) can be pivoted to a limited degree, so that inclined positions are possible.

Abstract: A seismic expansion joint cover includes a floor bridge panel having mutually perpendicular elongated U-shaped bearing receiver guideways adjacent its opposite ends slidably supported by linear bearings affixed to the floor portions on opposite sides of the gap. The receiver guideways are open vertically to allow the floor bridge cover to displace vertically. A cover plate frame defines the boundaries of a floor recess that receives portions of the floor bridge panel in all relative positions of the floor portions as the width of the gap changes. The portion of the floor bridge panel that overlies the gap is covered by a first floor cover plate, and the recess and the remaining portion of the floor bridge plate are covered by a second floor cover plate, which is supported by the cover plate frame and by the portion of the floor bridge panel that it overlies. The second cover plate is resiliently attached to the cover plate frame so that it can lift up and ride over the first cover plate when the gap narrows.

Abstract: A method of manufacturing a retaining element for an expansion joint seal comprises co-extruding, in a desired profile, a thermoplastic rubber body with high density thermoplastic elastomer reinforcing plate on the lower surface thereof. The reinforcing plate includes at least one rib extending into the thermoplastic rubber body. After the co-extruded body and reinforcing plate are permitted to cool and harden the lower surface of said co-extruded body and reinforcing plate is mechanically planed to obtain a retaining element of said desired profile with a flat lower surface.

Abstract: A panel assembly and method of manufacturing the panel assembly, especially adapted for use in vehicle panels, include locating a preformed gasket in a support fixture in a predetermined pattern to be bonded to a sheet-like panel. The gasket is formed from a polymeric material separately from the panel. The panel is of appropriate size and geometry to fit within a desired vehicle opening. At least one panel surface to receive the gasket is prepared by being primed with a bonding reagent. The panel and primer may be preheated before receiving the gasket to drive off remaining carriers/solvents and improve the bonding process. The panel and preset gasket are pressed together such that the securing flange is in intimate contact with the panel. Locator pins may be used to properly position the panel with respect to the gasket.

Abstract: An anchored/resilient floor system includes at least one upper flooring layer supported by parallel rows of attachment members which are supported above a base by a plurality of compressible pads, the attachment members being secured to the base at predetermined positions therealong by a fastener construction which permits downward deflection under loaded conditions but prevents vertical raising of the members beyond their initial static position. The attachment members are anchored in a manner which does not hold the pads in a precompressed state when the floor is unloaded. The fastener construction may include a one, two or three piece construction. The single member fastener construction is particularly suitable for reanchoring or retrofitting an already installed floor at a significantly lower cost than that of installing a new floor, and the one-piece fastener construction also may be adapted for use with a portable floor.

Abstract: Joints between vertical shafts such as concrete manhole elements are sealed by an elastomeric ring and a rigid locating ring. The locating ring keys into the elastomeric ring and holds it in place during and (optionally) after assembly. The principle is applied to various types of joint and the locating ring may be extended to form a liner for the shaft.

Abstract: A system is provided, wherein the watertight performance of exterior wall perimeters is addressed such as the perimeters of a window, a door, or a curtain wall system. The perimeter sealant lines are classified into P.E. Seal bordering no differential air pressure and D.P. Seal bordering a differential air pressure. Long lasting watertight performance is accomplished by using P.E. Seal in the area of the water path and D.P. Seal away from the water path. The design is accomplished by using combinations of an inner transition member, an exterior perimeter member, pressure equalization holes, and pressure equalized wall cavities.

Abstract: An elastomeric, longitudinally continuous, elongate gasket for an expansion joint cover is described. The gasket has, in cross section, a central body portion and two side portions, one at each edge of the central body portion. The central body portion has horizontal top and bottom walls. The top wall may have a flat upper surface, and includes a series of regularly spaced, longitudinal regions having alternately greater and lesser resistance to lateral compressive forces. The bottom wall, which need not have a completely flat lower surface, includes a similar series of regularly spaced, longitudinal regions, with regions of lesser resistance on one wall being disposed vertically opposite regions of greater resistance on the other wall. Internal walls joining stronger regions of the top and bottom walls form a series of alternating diagonal struts which tend to reinforce and enhance the stability of the upper wall.

Abstract: A seismic bridge for bridging and providing pedestrian access across a seismic joint between two building parts has a first end unit with a floor pivotally connected to one of the building parts and a second end unit with a floor pivotally connected to the other building part. A corridor sleeve unit, also having a floor, is slidably connected to each of the first and second end units. During relative motion between the two building parts, such as during an earthquake, the bridge can accommodate relative motion between the building parts within a predefined range, while still maintaining the structural integrity of the bridge. The bridge also includes centering means for centering and properly positioning the corridor sleeve unit with respect to the first and second end units. The centering means uses springs in combination with a plurality of frames which are slidably connected to each other to maintain the appropriate distance between the end units and the corridor sleeve unit.

Abstract: A concealed suspension ceiling system advantageously uses a `T` bar grid network used for lay-in ceiling panels. Saddle clips are secured to upper beads of the `T` bar grid network allowing torsioning springs to releasably maintain the panels suspended beneath the grid. The system can be used for entirely new installations or used in a retrofit application.

Abstract: An anchored/resilient floor system includes at least one upper flooring layer supported by parallel rows of attachment members which are supported above a base by a plurality of compressible pads, the attachment members being secured to the base at predetermined positions therealong by a fastener construction which permits downward deflection under loaded conditions but prevents vertical raising of the members beyond their initial static position. The attachment members are anchored in a manner which does not hold the pads in a precompressed state when the floor is unloaded. The fastener construction may include a one, two or three piece construction. The single member fastener construction is particularly suitable for reanchoring or retrofitting an already installed floor at a significantly lower cost than that of installing a new floor, and the one-piece fastener construction also may be adapted for use with a portable floor.