Abstract: A two-ply flooring plank is disclosed having two layers or “plies” with a bottom layer having a grain that runs generally transverse to a top layer or “cross-ply” to provide dimensional stability to the plank. The bottom layer includes a number of strips secured to the bottom of the top layer. The bottom layer strips are also placed with gaps between the individual strips of the second layer to allow flexibility of the flooring plank, which allows the flooring to more easily conform to irregularities in a subfloor upon which the flooring plank is mounted.

Abstract: Modular structures constructed from interlocking wall modules made of plate steel and assembled with C-channel connectors, including tongue and groove elements used to position adjoining modules adjacent to one another, for example during the construction of a cell block. The tongue and groove elements ensure all adjacent prison cell modules are properly aligned such that the front fascia of each cell module lies within substantially the same plane. Further, the interlocking of the tongue and groove allows for the quick, cost-effective construction of a schoolroom having double skinned walls in an effort to increase the stability of the structure. Lastly, the interlocking panels may be formed in relatively small sections and then joined together in order to form a larger wall.

Abstract: A multi-layer wall panel includes a core filler material surrounded by two plastic sheets. Each sheet includes three-dimensional texture formed to resemble masonry or other desired aesthetics. A layer of concrete may be disposed between each sheet and the filler material. The sheet may be removed from the concrete layers to expose the concrete surfaces. Multiple wall panels may be stacked on top of one another and joined side-by-side with posts and connectors to form a wall assembly. A method for manufacturing vertical concrete wall structures is also provided.

Abstract: A blind connection for joining foam core panels which comprise a central sheet of foamed resinous material having top and bottom rails and veneers bonded to opposite sides of the central sheet and the rails. The rails having abutting side edge faces with matching slots formed along the length of the side edges. Te slots have undercut retaining surfaces which are engaged by retaining surfaces formed on a joining member which is inserted into these slots in joining the panels in assembled relation. The use of modified joining members in connecting foam core panels that are in angled relation to each other is also described. Wear resistant retaining surfaces may be provided for slots in the foam core by solid polymer liners. Additionally a method customizing panels on an installation job site is provided through the use of portable electrically powered saw to cut a panel to a desired width and a portable electrically powered router to form and undercut slot for receiving a joining member.

Abstract: A two-ply flooring plank is disclosed having two layers or “plies” with a bottom layer having a grain that runs generally transverse to a top layer (i.e., “cross-ply”) to provide dimensional stability to the plank. The bottom layer includes a number of strips secured to the bottom of the top layer. The bottom layer strips are also placed with gaps between the individual strips of the second layer to allow flexibility of the flooring plank, which allows the flooring to more easily conform to irregularities in a subfloor upon which the flooring plank is mounted.

Abstract: An improved groundwork frame comprises a protruded bar each disposed in the middle of the top of an upper board and a lower board; an embedding groove being disposed in the middle of the bottom of the groundwork frame and corresponsive to the protruded bar; an upper groove and a lower groove respectively disposed on both sides of each floor board to define an embedded assembly; an opening being disposed on each corresponding edge of adjacent boards; an elastic clamp for clipping and securing the groundwork frame, and each floor board having a chamber; a screw hole and an adjusting screw hole being disposed on both sides of the chamber, such that the lower board on the floor being sheathed in the latch and an adjusting screw rod for adjusting the floor to an appropriate height.

Abstract: A method for building a sheet pile wall includes providing a first sheet pile having a leading sheet pile interlock with an interlock chamber, driving the first sheet pile into the ground while protecting the interlock chamber from ground material and providing a second sheet pile having a trailing sheet pile interlock with an interlock head. The method further includes coating a fixing agent as a surface layer on the interlock head of the trailing sheet pile interlock, engaging the coated interlock head of the trailing sheet pile interlock in the interlock chamber of the leading sheet pile interlock and driving the second sheet pile into the ground so that the trailing sheet pile interlock interlocks with the leading sheet pile interlock.

Abstract: A dock pit for a dock leveler mechanism comprises a pre-cast concrete body including integrally formed side, rear panel and front panels, all forming a continuous perimeter open therethrough to receive the load leveler mechanism. Each side panel has a top edge and the rear panel has a rear edge offset below the of the side panel top edges, whereby a concrete slab poured around the body will abut the rear panel edge with the surface of the concrete slab substantially flush with the top edge of each side panel. The side panels define a recess along their length that is situated between the top edge of the side panel and the rear edge of the rear panel, whereby the concrete slab poured around the pre-cast body will integrate within the recesses on each said side panel. The dock slab can be poured using the pre-cast pit as a form.

Abstract: An agricultural floor panel and system having a design for improved strength and cleaning is described. The floor panel is designed for support on at least two cross beams. The floor panel has two opposing edges, each edge having a plurality of flanges for supporting engagement on the cross beams and the plurality of flanges defining a plurality of recesses between adjacent flange. The flanges and recesses are adapted for interlocking engagement with corresponding flanges and recesses of an adjacent panel and also include a locking and spacing system for locking adjacent panels together while substantively maintaining a gap between the opposing edges of two adjacent panels.

Abstract: A prefabricated structural building panel having a deep ribbed sheet metal interior skin. The panel preferably has a light weight rigid highly insulative foam core bonded to inner and outer skins, and having a ribbed configuration for the interior skin. A method for building a structural wall by assembling panels in an edge to edge relationship to create a structural wall system with the ribbed interior skin providing the structural support. A prefabricated insulated structural panel, having a core material of various types of foam plastic bonded to an interior ribbed metal skin and an exterior skin of any one or combination of suitable exterior materials such as for example wood, fiber glass, cement, or metal. The edges of the panels are configured to abuttingly match corresponding edges of similarly configured panels when such panels are arranged in edge to edge relationship to form the structure wall of a building.

Abstract: The invention comprises a roof assembly, comprised of a frame and a plurality of louvers rotatably mounted within the frame, each louver having a channel running along its longitudinal axis. The assembly may also include a gutter located at one end of the frame below the louvers and running perpendicular to the longitudinal axes of the louvers. Also, the assembly further includes a mechanism for rotating the louvers from an open position to a closed position. The result is that liquid can flow along the channels in the louvers and into the gutter.

Abstract: The present invention relates to a disengageable interconnecting flooring system for use in forming a temporary or permanent flooring surface on top of a support structure from individual flooring panels. The system includes two or more flooring panels comprising a top wear surface and a bottom surface for contact with the support structure. The panels have at least three edges and all edges have recesses formed therein. The system further comprises a connector having a base and a projection extending vertically from the base. The projection extending from the base is shaped to be received in a disengageable vertical connected fashion into the recesses of the panels. Preferably, the connector is comprised of a base having a projection extending the entire length thereof. In a preferred embodiment, the connector and panels further comprise means for connecting the panels in a disengageable horizontal fashion.

Abstract: A temporary trench cover includes a number of cover elements which are of prefabricated or cast metal construction. An interlink for interengaging like cover elements on assembly includes a male head part at one end and a female slot at an opposite end. The male part engages with the female slot in such a way as to allow limited controlled relative movement between adjacent cover elements on assembly in both the horizontal and vertical planes. In this way the cover elements readily follow the contour of the ground in which the trench is dug.

Abstract: A modular insulated building panel is disclosed. The panel is configured for connection to a like adjacently positioned insulated panel to form a building system. The panel comprises a central core of insulating material having two major surfaces and two side surfaces, substantially flat sheets on the major surfaces of the central core. Extending beyond the side surfaces of the core are male connectors having a generally convex curved first male mating member, a generally convex curved second male mating member, and a generally concave curved member between said first male mating member and said second male mating member. The panel further comprises female connectors having a generally concave curved first female mating member configured to accept the first male mating member, a generally concave curved second female mating member configured to accept the second male mating member, and a generally protruding member between the first female mating member and the second female mating member.

Abstract: Disclosed is a modular floor including a plurality of floor tiles having two sides with different functional characteristics so that one side has a regular checkered surface with protrusions of equal maximum height and on the same plane, comprising areas with open grids and blind areas, while on the other side are some areas with through openings and some with regularly spaced blind openings with protrusions of equal maximum height, all of which coincide with the counterpart of the first side, which are combined with flat sunken areas with respect to the maximum height of this side, which constitute grooves for the insertion of interlocking members and present a surface formed by the closed backs of the blind areas of the first face.

Abstract: The present invention provides an attachment system that can be used to interface between dissimilar camouflage systems and is particularly useful with ULCANS and LCSS camouflage systems. The present invention provides such compatibility while simultaneously maintaining quick disconnect capabilities with either system.

Abstract: A modular fiber reinforced polymer (FRP) module that interlocks with other similarly designed modules. Specifically, each FRP module has a female, receiver, end and a male, inserter, end such that the inserter of a first FRP module interlocks with, or “snaps into” or “slids into,” a receiver of an adjacent second FRP module. Once interlocked, the two connected FRP modules are further secured by either adhesive and/or thermal connections. An FRP module is made of multiple layers of multi-axial fiber reinforcement and a resin matrix, the layers being continuous throughout the entire shape of the module. An overlay may be placed over the top face of one or more FRP modules joined together to provide a uniform surface. In addition, one or more exterior FRP composite laminates, grids, plates or fabrics may be bonded continuously to the top face.

Abstract: A decking tile is disclosed which is arranged to receive a plurality of slats in a side-by-side manner. The decking tile has a plurality of apertures for receiving fasteners to retain the slats to the decking tile and connectors provided around the periphery of the decking tile for connecting the decking tile to another decking tile. The decking tile is divided into a plurality of portions arranged in an array, the portions being connected to adjacent portions by a plurality of membranes. Each portion is removable from the tile upon severing of the membranes surrounding it. Two apertures are provided in each portion through which the fasteners can engage a slat positioned on said portion parallel to any side of said tile.

Abstract: A wall construction comprises block members or sections stacked vertically about five high and abutting horizontally to form a wall. Each block member or section comprises a top plate, bottom plate and two side studs. The block members are attached side by side by fastening plates on the top and bottom which overlap adjacent blocks, including one top fastening plate which overlaps the top plates of two adjacent blocks, and a bottom plate which overlaps the bottom plates of two adjacent blocks. The vertical components may be 2×4 dimensional wood pieces on the order of 15-20″ long, and the horizontal components about 30-40″ long. Steel studs may be used instead of wood pieces, and horizontal components may be up to eight feet long.

Abstract: A wall panel for a storage building is provided. The wall panel includes a first arcuate ridged region bounded by a first inner clamping surface, and a second inner clamping surface. The wall panel also includes a second arcuate ridged region bounded by a first outer clamping surface and a second outer clamping surface. The second arcuate ridged region of a first wall panel is adapted to securely overlap and snap-fit interconnect with said first arcuate ridged region of a second adjacent wall panel.

Abstract: A modular insulated building panel is disclosed. The panel is configured for connection to a like adjacently positioned insulated panel to form a building system. The panel comprises a central core of insulating material having two major surfaces and two side surfaces, substantially flat sheets on the major surfaces of the central core. Extending beyond the side surfaces of the core are male connectors having a generally convex curved first male mating member, a generally convex curved second male mating member, and a generally concave curved member between said first male mating member and said second male mating member. The panel further comprises female connectors having a generally concave curved first female mating member configured to accept the first male mating member, a generally concave curved second female mating member configured to accept the second male mating member, and a generally protruding member between the first female mating member and the second female mating member.

Abstract: A wall panel for a storage building is provided. The wall panel includes a first arcuate ridged region bounded by a first inner clamping surface, and a second inner clamping surface. The wall panel also includes a second arcuate ridged region bounded by a first outer clamping surface and a second outer clamping surface. The second arcuate ridged region of a first wall panel is adapted to securely overlap and snap-fit interconnect with said first arcuate ridged region of a second adjacent wall panel.

Abstract: A polymeric floor tile of elongated shape having a top surface molded to simulate a section of wood flooring with a plurality of staggered boards. The tile is adhesive-free, made possible by novel mating interlocks formed so as to lie below the linear edges defining the top tile surface. A decorative layer of wood grain may be applied to the top surface during or after molding to enhance simulation.

Abstract: A pit form comprising two substantially parallel side members having two ends and a substituting perpendicular rear member extending between proximate the same ends of the side members in use, each of the side members and the rear member having compatible male and female engaging portions to interconnect said members to form said pit form.

Abstract: A decking tile is disclosed which is arranged to receive a plurality of slats in a side-by-side manner. The decking tile has a plurality of apertures for receiving fasteners to retain the slats to the decking tile and connector provided around the periphery of the decking tile for connecting the decking tile to another decking tile. The decking tile is divided into a plurality of portions arranged in an array, the portions being connected to adjacent portions by a plurality of membranes. Each portion is removable from the tile upon severing of the membranes surrounding it. Two apertures are provided in each portion through which the fasteners can engage a slat positioned on said portion parallel to any side of said tile.

Abstract: The present invention relates to a disengageable interconnecting flooring system for use in forming a temporary or permanent flooring surface on top of a support structure from individual flooring panels. The system includes two or more flooring panels comprising a top wear surface and a bottom surface for contact with the support structure. The panels have at least three edges and all edges have recesses formed therein. The system further comprises a connector having a base and a projection extending vertically from the base. The projection extending from the base is shaped to be received in a disengageable vertical connected fashion into the recesses of the panels. Preferably, the connector is comprised of a base having a projection extending the entire length thereof. In a preferred embodiment, the connector and panels further comprise means for connecting the panels in a disengageable horizontal fashion.

Abstract: A connector for assembling and sealing laminate flooring panels which are separate from the connector, the connector comprising: a base; an extension attached to the base and having a mating member for mating with a flooring panel; and a seal attached to a member selected from the base and the extension. A method for manufacturing a connector for assembling and sealing laminate flooring panels which are separate from the connector, the method comprising: extruding a connector having a base and an extension attached to the base, wherein the extension has a mating member for mating with a flooring panel; and attaching a seal to the connector.

Abstract: The invention relates to a locking system for mechanical joining of floorboards (1) constructed from a body (30), a rear balancing layer (34), and an upper surface layer (32). A strip (6), which is integrally formed with the body (30) of the floorboard and which projects from a joint plane (F) and under an adjoining board (1), has a locking element (8) which engages a locking groove (14) in the rear side of the adjoining board. The joint edge provided with the strip (6) is modified with respect to the balancing layer (34), for example by means of machining of the balancing layer under the strip (6), in order to prevent deflection of the strip (6) caused by changes in relative humidity. The invention also relates to a floorboard provided with such a locking system, as well as a method for making floorboards with such a locking system.

Abstract: Flooring panels having a tongue and groove locking mechanism. The tongue-and-groove configuration principle are provided at the areas being connected. The sides of the groove diverge from the groove base and converge at the end away from the groove base. The opening width of the groove is greater than the foremost area of the tongue in the direction of insertion. The tongue exhibits wedge-shaped areas that diverge from front to back which areas exhibit an undercut in the back area of the tongue that conforms to the groove cross-section. The undercut's borders, adjoining the wedge-shaped areas, converge at the same angle as the groove sides toward a connecting bridge that is part of the component.

Abstract: The invention relates to a locking system for mechanical joining of floorboards (1, 1′), a floorboard having such a locking system and a flooring made of such floorboards. The locking system has mechanical cooperating means (36, 38; 6, 8, 14) for vertical and horizontal joining of adjoining floorboards. The means for horizontal joining about a vertical plane (F) comprise a locking groove (14) and a locking strip (16) which is located at opposite joint edge portions (4a, 4b) of the floorboard (4). The locking strip (6) projects from the joint plane (F) and has an upwards projecting locking element (8) at its free end. The locking groove (14) is formed in the opposite joint edge portion (4a) of the floorboard at a distance from the joint plane (F). The locking groove (14) and the locking element (8) have operative locking surfaces (10, 11).

Abstract: An improved waterproofing system for concrete slab of a flat roof on a building is disclosed. The invention concerns a construction method for installing on the concrete substrate a waterproofing layer comprising hollow plastic panels of designed size, different thickness, and the groove and the tongue joint, and installing a supplementary waterproofing layer using sheet membrane materials such as asphalt sheet, metal sheet and other sheets on the vertical surface, especially the parapet of roof. The invention further concerns a construction method for applying fluid-applied materials after reinforcement with fiber mesh on their joint line to connect plastic panels on substrate with sheet membrane layer on the vertical surface. The waterproofing layer of sloped step type, hollow plastic panels of different thickness permits fast drainage of stagnant water, which inhibits weather damage to the waterproofing layer.

Abstract: The invention relates to a panel connection, particularly for flooring panels, having a groove (34) that is embodied at a side edge (3); a spring (32) that is embodied at a side edge (4); a depression (35) that is embodied in the groove (34) and has an interlocking surface (16); an interlocking element (33) that is embodied at the spring (32) and has an interlocking surface (27); and fitting surfaces (12, 22), which are embodied in the groove (34) and at the spring (32) and serve as abutments for the interlocking surfaces (17, 27). The properties of interlocking and orientation stability are improved in that the groove (34) has fitting surfaces (14, 15), which extend parallel to the top side (5), in the region of the groove bottom (7), and the spring (32) has fitting surfaces (24, 25), which extend parallel to the top side (9), in the region of the end surface (8), with the fitting surfaces (14, 24; 15, 25) resting against one another in the interlocked state of the connection.

Abstract: A plate-like structural element substantially comprises a wooden material plate with a high water resistance and having a plastic coating on at least part of its top and/or bottom side. This element is constructed in the manner of a wall or floor tile. For fixing or joining several elements on the edge surfaces are provided grooves and tongues. Preferably the width of the tongues exceeds the depth of the grooves, so that a specific, uniform joint width is ensured between the elements.

Abstract: A horizontal joint between upper and lower building panels, as well as a building wall including such a horizontal joint, in which a liquid diverting arrangement includes a gutter with first and second ends and at least one aperture disposed between these ends. Also contemplated are a method and apparatus for forming at least two building panels, in which the panels have different reveal dimensions, and a method and apparatus for forming a building panel in which a first reveal portion is registered while a second reveal portion has been formed at a preselected distance therefrom. Further contemplated are a method and kit for customizably assembling a building wall, in which panels having different thickness dimensions can be interchangeably connected with one another, as well as a method and kit for customizably assembling a building wall, in which on or more decorative profile panels and one or more structural building wall panels can be interchangeably connected with one another.

Abstract: A partition wall system providing for lay-in of cables, includes a plurality of interconnected panel sections. Each panel section has a base surface and a plurality of protrusions extending from the base surface and a plurality of covering skins. At least one of the covering skins is attached to each of the panel sections so that a passage is formed between the covering skin and the base surface of the panel section to allow the cables to travel through each panel section and between interconnected panel sections.

Abstract: A panel assembly of the present invention comprises a stringer and a plurality of sheet panels each having a curved portion extending downward at one side thereof and a curved portion extending upward at the other side thereof. The stringer has on the top thereof a plurality of panel engaging portions adjacent to one another, each having upstream side convex portion, around which the curved portion of the sheet panel extending downward is hooked, a downstream side concave portion, into which the curved portion of the sheet panel extending upward Is fitted, and a planar portion extending from the upstream side convex portion to the downstream side concave portion. The planar portion of the panel engaging portion of the stringer is inclined downward from the upstream side convex portion to the downstream side concave portion. An upper portion of the concave portion of the panel engaging portion having a groove, into which a tip end of the curved portion of the sheet panel extending upward is fitted.

Abstract: A breast wall construction which can be constructed easily, quickly and safely at any execution sites includes many breast wall panels arranged in rows. On the back of the breast wall panel rows, many joint brackets with truss construction are placed with the front vertical area of the joint brackets joined to the back of the breast wall panel row which forms the bottom step and the back of the upper horizontal area of the joint brackets joined to the bottom of the top step breast wall panel row which is formed one step higher than the breast wall panel row which forms the bottom step.

Abstract: A modular floor tile having interlocking members which are reinforced to prevent a gap from forming between adjacent tiles during use. The tile comprises a plastic support grid having a rectangular configuration bounded by a perimeter wall on four sides and including a latticework of support members on the underside thereof. The support members are integrally formed as part of the tile and include leg portions extending downwardly therefrom which have common lengths in order to provide a single plane of contact at the supporting floor. Interlock members are coupled to and extend outward from the perimeter wall to enable removable attachment of additional modular tiles of similar design at corresponding edges thereof. A continuous sheet of plastic can be integrally formed in uniform thickness with a top surface of the tile to provide a flat surface on which recreational games can be played on an interlocked grid of tiles.

Abstract: A load bearing-metal panel and stucco substrate cooperates with adjacent panels to form load bearing studs that are interconnected by a metal lath stucco substrate to which stucco can be applied, each panel being generally in the form of a channel in which insulation can be placed, whereby a wall structure can be formed by adjacent placement and interconnection of panels.

Abstract: A basic wall framing unit typically consisting of a rectangle formed of two vertical and two horizontal two inch by four inch lumber with the verticals being spaced apart by two feet on centers. A plurality of wall framing units can be combined at the building site to provide a wall of any desired length. It is also possible to provide complete, larger and more complex wall framing units with provisions for windows and doors which are preassembled at a fabrication facility and then transported to the building site. A wall that is the complete side of a home can be provided and set in place at one time, greatly reducing the time necessary to fabricate the home. All of the framing units are generally secured together with truss plates to provide a means of rapid construction and to reduce or entirely eliminate the need for the carpenter to install hurricane strapping at the site.

Abstract: An adjustable foundation wall arrangement having first and second foundation walls running generally parallel to each other and a third foundation wall being disposed between the first and second foundation walls. The first and second foundation walls are preferably prefabricated and the third foundation wall is prefabricated in two portions. On site, one of the third foundation wall portions is aligned to the first foundation wall and the other of the third foundation wall portions is aligned to the second foundation wall. This alignment typically leaves a small space between the inner ends of the third foundation wall portions. This small space, preformed in the shape of a receptor for a key stud, is at least partially filled by the key stud to tie the third foundation wall portions to each other. Alternatively, or preferably in combination with the key stud, a cap tie connects the third foundation wall portions to each other.

Abstract: Two sheets having geometric perforations formed in a regular pattern are mounted such that they are spaced apart in parallel planes and the geometric perforations are congruent. The pair of sheets may be used either for the decoration of the facade of a building or as an interior structural building component.

Abstract: A fastener system for securing a grating to an underlying structural support member when the grating experiences extremely high wave pressures. The fastening system includes elongated generally L-shaped connectors for fastening the longitudinal edges of grating sheets to structural members and plate fasteners in a wave zone area of the platform. The plate fasteners have a top plate for mounting on an upper surface of the grating sheets, a bottom plate for attaching to the structural members in a laterally extending direction for supporting the grating sheet and bolt assemblies for clamping the top and bottom plates together in order to secure the grating sheets to the structural members. A combination of the elongated L-shaped connectors and the plate fasteners provide fastening support for the gratings sheets so as to resist vertical and horizontal wave pressures when secured to the supporting members.

Abstract: A method and apparatus for the construction of a two-layer flooring system for use at a construction site such as an oil well drilling site. The flooring system is particularly well suited for use in areas with dry, sandy soil. The flooring system is formed by interlocking both the ends and sides of a plurality of mat units. Each of the mat units includes two layers of boards. The first layer has end locking tabs extending beyond the edge of the first layer and corresponding end locking slots, formed by offsetting selected boards. The second layer similarly includes side locking tabs and corresponding side locking slots, also formed by offsetting selected boards. The arrangements of these tabs and slots is such that half-size units and inverted units may be utilized, allowing a wide variety of patterns of interlocking units to be utilized for the flooring system.

Abstract: A built-up partition wall framework system for building up partition wall frameworks in a building, including a plurality of main wall panels, a plurality of main wall panel coupling hook plates for connecting the main wall panels in parallel, a plurality of top channel rails for fastening to joined main wall panels at a top side, a plurality of bottom channel rails for fastening joined main wall panels at a bottom side, a plurality of channel-like latch pins for securing the top channel rails to the main wall panels, a plurality of wedge blocks for mounting between the bottom channel rails and the floor, a plurality of first side covers and second side covers for fastening to lateral sides of constructed partition wall frameworks, a plurality of mounting supports for securing constructed partition wall frameworks to vertical walls of the building, a plurality of T-wall external coupling hook plates, wall end coupling hook plates, internal angle coupling hook plate external angle coupling hook plates and wall

Abstract: A multi-piece dome is constructed from a plurality of rigid panels and configured to receive a hemispherical optical projection on a truncated spherical inner surface. The inner view surface has a predetermined retroreflectivity. The multi-piece dome is lightweight, portable, self-supporting, and easily assembled, disassembled and transported from one location to another.

Abstract: The invention is for a thermoplastic structural system, structural components therefor, and method of producing same in which the structural components are extruded from a thermoplastic material containing a reinforcing constituent flowable through an extrusion die, the structural components being configured for interlocking interconnection.

Abstract: A modular pet habitat specifically adapted to accommodate cats. The device includes multiple panels which are linked together in variable conformations to create a maze through which the cat can travel. Connectors that allow the user to snap panels together by hand, without the use of tools, allow easy construction and modification of the habitat.

Abstract: A floor frame assembly for modular housing units that includes longitudinally extending floor support beams and transverse supports that are attached to and extend outwardly from an outer one of the longitudinal floor support beams to support an edge portion of the floor assembly. The transverse supports have an outer end substantially less than the height of the end that is secured to the outer beam. A hanger is secured to the outer edge of each of the transverse supports. The height of the hanger is greater than the height of the outer end edge so that a gap is created between the bottom of the outer end and the bottom of the hanger to facilitate the attachment of the hanger to a sill plate of a foundation.

Abstract: There is provided an extruded, modular panel unit for the construction of wall-surface portions, especially of light-transmitting wall-surface portions. The panel comprises two sheet-like major surfaces interconnected and spaced apart by a plurality of web-like ribs dividing the space delimited by the major surfaces into a plurality of subspaces, and at least one joining flange extending in the direction of extrusion and projecting at an angle from an edge of the panel unit. In cross section, the sheet-like major surfaces and the ribs form a truss-like structure of which the major surfaces constitute the chords and the ribs constitute the webs.