"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 8186116 | Tile tray A tile tray (1) including a generally planar base (2) and two or more retaining members (5) adapted to locate and retain a tile (7) to the base. The tile tray (1) further includes a coupling means for connecting two or more of the ... | 05/29/2012 |
| 8161701 | Methods for manufacturing and packaging floor panels, devices used thereby, as well as floor panel and packed set of floor panels Method for manufacturing floor panels, wherein is started from panels (1), these panels (1), at their lower side (9), are provided with at least one guiding groove (22) and these panels (1), at least at two opposite sides (3... | 04/24/2012 |
| 7836651 | Tile assembly system The present invention provides a tile panel unit having a tile cap composed of at least one layer of crushed stone mixed with a resin and a catalyst and at least one layer of fiberglass strands mixed with a resin, and a base plate at least partially embedded in at l... | 11/23/2010 |
| 7716889 | Flooring systems and methods for installation Floorboards for mechanical joining of floors in a herringbone pattern and in parallel rows with horizontal connectors which on the short sides have cooperating locking surfaces which are designed differently from the cooperating locking surfaces on the long sides. | 05/18/2010 |
| 7442423 | Hard surface-veneer engineered surfacing tiles Engineered tile panels incorporating a hard surface veneer formed from ceramic, glass, and stone layer affixed to the core or substrate which may be assembled gluelessly and which provide uniform grouting gaps upon assembly, is disclosed along with methods therefore... | 10/28/2008 |
| 7413374 | Overlapping secured mat system A portable overlapping secured mat system with uniformly sized plastic mats joined together to form structural support surface for use by persons or equipment. The mats' edges have recessed upper and lower lips with finger projections extending from the upper lips s... | 08/19/2008 |
| 7257929 | Assembling module for floor or wall coverings A module includes at least an associated two-layer structure with one first layer being a polymer base layer highly loaded with mineral fillers contributing to the rigidity of the module, and a second layer made from a printed polymer film defining the decorative pa... | 08/21/2007 |
| 7225591 | Flexible two-ply flooring system 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 sec... | 06/05/2007 |
| 7216461 | System and method for forming surfaces using tiled components and product resulting therefrom Disclosed are systems and methods which provide durable and substantially smooth surfaces comprised of a number of smaller pieces of surfacing material. For example, tiles of natural materials, such as marble or granite, are formed into larger unitary structures, wh... | 05/15/2007 |
| 7162838 | Construction panels A constructional panel has a generally rectangular central section and two opposed end sections, each having an isosceles trapezoid part, its short edge conjoined to an edge of the central section and its long edge conjoined to a rectangular part, there being obliqu... | 01/16/2007 |
| 7089708 | Wall paneling assembly and system Panels which are joined at their opposing end faces are used to create a panel assembly. The opposing end faces may be a tongue and groove arrangement or they may consist of matching beveled recesses. In either case, the interrelationship between the opposing end fa... | 08/15/2006 |
| 7021019 | Panels with connecting clip A panel includes coupling elements arranged so that two panels an be connected to one another by a form-fit connection at the same time in a first direction perpendicular to the common joint and in a second direction parallel and perpendicular to the common surface ... | 04/04/2006 |
| 6966161 | Vertically joined floor elements comprising a combination of different floor elements Vertically joined flooring material comprising floor elements (1) with a mainly triangular, square, rectangular, rhomboidal or polygonal shape, as seen from above. The floor elements (1) are provided with edges (2) which are provided with joinin... | 11/22/2005 |
| 6953105 | Damping foil consisting of several layers and a method for producing same A multi-layer damping foil having a perforated lower layer facing towards a part to be damped, with properties which are suitable for adhering the damping foil onto the part. A non-perforated upper layer, facing away from the part, does not have adherence properties... | 10/11/2005 |
| 6925764 | Tile The invention relates to a tile for laying in enclosed spaces, and especially but not exclusively for installation in so-called damp rooms, such as bathrooms, toilets, basements, but also entrance halls, conservatories and verandas. The tile according to the inventi... | 08/09/2005 |
| 6922963 | Moisture and condensation barrier for building structures Moisture and condensation barriers for protecting wood from damage in building structures (particularly but not necessarily in flooring systems) include a liquid rubberized coating material coated onto some of the wood or a barrier sheet having a petroleum-based tar... | 08/02/2005 |
| 6918215 | Free floating sub-floor panel A floor panel is provided for use in a sub-floor application. The floor panel has an upper member and a lower member. The upper member is made from a sheet floor material and the lower member is made from a waterproof sheet material. The lower member has a series of... | 07/19/2005 |
| 6865856 | Plastic floorings using concave portions and convex portions The present invention relates to a new plastic flooring that is assembled by concave portions and convex portions. The plastic flooring provides space between the concave portions and convex portions. The space absorbs the heat expansion of the plastic flooring such... | 03/15/2005 |
| 6851237 | Floorboard with compression nub A wood floor system comprises a plurality of parallel rows of floorboards laid end-to-end, and each of the floorboards includes a compression nub extending along a side surface thereof, adjacent the top surface. These compression nubs affirmatively engage an opposin... | 02/08/2005 |
| 6808777 | Flooring An arrangement which comprises: first and second panel-shaped pieces of flooring for joining together, said pieces resting on a sub-floor and having profiles along mutually meeting edge portions which, on the first piece, consist of a groove and a projection located... | 10/26/2004 |
| 6799402 | Floor tile flooring connected by tongue and groove-joints and covered fasteners The invention relates to a floor with strips each defining a length and width and along the side and end edges provided with either end tongue or groove. The floor is laid in groups each including a number of tongue and groove assembled strips fastened to a subfloor... | 10/05/2004 |
| 6794001 | Flooring with a 2-part adhesive A floor surface is described which involves a plurality of planks joined together using a 2-part adhesive system. Pre-applied adhesives on one or more floor panels are further described as well as methods of installing the floor panels to form a floor surface. ... | 09/21/2004 |
| 6769835 | Floor board with coupling means A floor board is arranged to be connectable to other similar boards to form a floor. The floor board includes a first female coupler extending along a first edge of the board, wherein the first female coupler comprises a first coupling element having a groove and a ... | 08/03/2004 |
| 6751917 | Floor tile structure without adhesive coating at the bottom A floor tile structure, provided that a surface layer and a bottom layer are attached respectively on the upper and the lower surfaces of the soft double-sided adhesive tape with pressure sensitivity, wherein the surface layer is possibly made of ceramic, rock, meta... | 06/22/2004 |
| 6718714 | Safety flooring assembly The present invention relates to a removable and replaceable flooring matrix capable of providing various environmental cues for the safety of disabled persons. The flooring matrix may be installed and de-installed in sections, called sectionals, that are securely a... | 04/13/2004 |
| 6711869 | Process of laying floorboards A process is proposed for laying and mechanically jointing floorboards provided with tongue and groove engagements on all sides for horizontal attachment. The process involves a) jointing of a number of boards and making them engage on their transverse sides n order... | 03/30/2004 |
| 6694689 | Modular flooring systems and methods Modular flooring systems and methods using at least one free-lay support module. The free-lay support module includes a baseplate and a frame member having a first arm and a second arm that meet and form an angle. Replaceable wear surface modules with or ... | 02/24/2004 |
| 6688061 | Direct laminated floor New direct laminated floor, of the kind that contain, on their surface, cellulose sheets impregnated in polymerizable resins, on which some characteristics have been drawn and where, once pressed and mechanized, the finished strips have an offset/sunk are... | 02/10/2004 |
| 6670019 | Arrangement for jointing together adjacent pieces of floor covering material In an arrangement for jointing together adjacent pieces of floor covering material, mutually facing edge portions of the pieces in a joint are profiled such that the one piece has a groove-shaped accommodation space in which a corresponding bead-shaped pr... | 12/30/2003 |
| 6667109 | Two-piece decorative medallion A decorative medallion consists of two pieces that may be assembled about a mounted fixture. The medallion pieces are decorated with surface ornamentation to add to their visual appeal. A first piece of the medallion includes at a first end an overlapping... | 12/23/2003 |
| 6647685 | Spacing device for placement of tile A tool for the spacing of tiles during installation includes a central body with radially projecting prongs that are fitted between adjacent tiles to control the spacing thereof.... | 11/18/2003 |
| 6640513 | Combination floor structure A combination floor structure includes multiple main boards, and multiple connecting boards. Each of the main boards is a rectangular plate, and has four corners each formed with a recessed portion which has a central position protruded with a locking lug... | 11/04/2003 |
| 6619002 | Deck structure A flooring system including resin channels having webs and legs mounted on joists with their webs resting on the edges of the joists and their legs straddling the sides of the joists, and a plurality of adjacent resin tiles each having a plate with inner ... | 09/16/2003 |
| 6609348 | Method for assembling a repeating series of tiles A repeating series of tiles has at least three tiles in a series. Each tile within the series has at least two sides capable of interfacing with adjacent tiles within the series. Each of the two sides of each tile within the series has a different shape i... | 08/26/2003 |
| 6601357 | Un-reinforced thermoplastic coating The present invention concerns an adhesive bonded thermoplastic coating for the underside of a floor that will add significant moisture resistance, wear resistance, transverse crack resistance, and make a better looking, more marketable product. The plast... | 08/05/2003 |
| 6543196 | Flooring device A flooring device for aligning and laying tiles. The flooring device includes a panel having an upper surface and a lower surface. The panel is flexible. The upper surface has a plurality of recesses therein bounded by ridges. A plurality of tiles each ha... | 04/08/2003 |
| 6536178 | Vertically joined floor elements comprising a combination of different floor elements Vertically joined flooring material comprising floor elements (1) with a mainly triangular, square, rectangular, rhomboidal or polygonal shape, as seen from above. The floor elements (1) are provided with edges (2) which are provided with joining members ... | 03/25/2003 |
| 6470641 | Assembly device without visible screws for wooden slats An assembly device without visible screws for assembly of two parallel wooden slats comprises an intercalated fixing element engaged in two positioning grooves arranged side by side in the side faces. The fixing element comprises a metal slide having: a b... | 10/29/2002 |
| 6418690 | Outdoor deck material The specification discloses an outdoor deck surface unit in which a plurality of boards, suitable for outdoor use, are secured to an underlying substrate. The deck units cover an area of from about 2 to about 6 square feet, such that they are large enough... | 07/16/2002 |
| 6408584 | Pre-fabricated wood underlayment and tile system A pre-fabricated wood underlayment and tile system comprising, in layers, wood underlayment, layer of adhesive, and a layer of vinyl or ceramic tile with a plastic film protectant that is peeled away after installation which provides a pre-fabricated pane... | 06/25/2002 |