Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 7735288 | Floor panels with edge connectors Floor covering, including hard floor panels which, at least at the edges of two opposite sides, are provided with coupling parts, cooperating which each other, substantially in the form of a tongue and a groove, wherein the coupling parts are provided with integrate... | 06/15/2010 |
| 7610731 | Snap together floor structure A floor structure unit, comprising: a tray, a flooring material, a rubber grommet, and a rubber matrix is provided. The tray includes an upper and lower horizontal surface, at least one retaining wall, a first and a second set of contrapositive interlocking members.... | 11/03/2009 |
| 7591116 | Floor covering, floor panel and set of floor panels for forming such floor covering, and methods for the packaging and manufacturing of such floor panels Floor covering, of the type consisting of oblong, and more particularly rectangular, strip-shaped hard floor panels (2) with a layered structure, which extend in parallel rows, characterized in that it comprises floor panels (2) of at least two differe... | 09/22/2009 |
| 7409801 | Prefabricated foam block concrete forms with open tooth connection means A foam block concrete form including a pair of opposing foam panels spaced parallel from each other, a plurality of ties positioned transverse to and between the pair of opposed panels for holding the panels in spaced apart parallel relationship to each other, a sin... | 08/12/2008 |
| 7337588 | Panel with slip-on profile The invention relates to a panel (1) with connecting means (3, 4, 7, 9) which make a positive connection with a further panel (2) possible. A panel (1) comprises as connecting means laterally a groove (3) formed by two rigid flanks... | 03/04/2008 |
| 7182040 | Personnel guidance and location control system A personnel location control system for controlling and guiding a group of individuals in a selected path to a waiting point and then to an activity in advance of that waiting point. The system in one embodiment relies upon a plurality of disks or like guide path-fo... | 02/27/2007 |
| 7162846 | Joint structure for liquid or semi-liquid sealant A joint structure for a liquid or semi-liquid sealant is provided to facilitate the sealing engagement of plural structural members without having sealant protruding from the joint in a visible area. The joint structure comprises a first structural member having a c... | 01/16/2007 |
| RE39439 | System for joining building boards The invention relates to a system for laying and mechanically joining building panels, especially thin, hard, floating floors. Adjacent joint edges (3, 4) of two panels (1, 2) engage each other to provide a first mechanical connection locking the joint... | 12/26/2006 |
| 7131242 | Flooring panel or wall panel and use thereof A building panel, such as a flooring panel or wall panel and a method of assembling the same into a floor, wall cladding, etc. The panel is provided with a locking means in the form of groove (6) and tongue (7) forming a tongue/groove joint for assembl... | 11/07/2006 |
| 7114298 | Roll-up floor tile system and method A plurality of interlocking tile pieces form a generally flat traffic-carrying surface. The tile are locked together in a manner to form a plurality of non-bendable tile joints. The tile includes a hinge or fold line along a first axis and a hinge or fold line along... | 10/03/2006 |
| 7040068 | Floor panels with edge connectors Floor covering, including hard floor panels which, at least at the edges of two opposite sides, are provided with coupling parts, cooperating which each other, substantially in the form of a tongue and a groove, wherein the coupling parts are provided with integrate... | 05/09/2006 |
| 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 |
| 6955020 | Floor panels with edge connectors A floor covering panel made of a hard laminated assembly including a wood-base core includes coupling parts formed in one piece with the core, wherein the coupling parts provide locking elements for preventing the drifting apart of coupled panels in directions perpe... | 10/18/2005 |
| 6880307 | Panel element The invention relates to a panel element for forming a floor covering, consisting of several identical interconnectable panel elements and having the following features: two first sides of each panel element, called the “longitudinal sides”, these sides having a... | 04/19/2005 |
| 6880305 | Metal strip for interlocking floorboard and a floorboard using same The invention relates to a strip for a building board (2), exhibiting a board body (S) which is formed with a gripping stud (24). The strip (10) extends from the body (S) and from which are formed gripping elements (26, 28), which are ben... | 04/19/2005 |
| 6766622 | Floor panel for floor covering and method for making the floor panel Floor covering, consisting of floor panels (1) based on a fiber-like material bound by a binding agent, more particularly MDF or HDF, which, at least at their edges, are connected to each other by means of a connection, more particularly a tongue-and-groove c... | 07/27/2004 |
| 6722809 | Joint A joint for two flat structural members, in particular floor panels, wherein a groove and tongue joint joining two flat structural members is provided functionally separate from a twistlock locking the two flat structural members. The twistlock is formed on one of t... | 04/20/2004 |
| 6684592 | Interlocking floor panels The disclosed invention is a portable floor comprised of interlocking floor panels which may be used for dancing, theatrical productions, musical performances, trade shows, and other settings where it is desirable to have a firm wooden floor surface. The ... | 02/03/2004 |
| 6675544 | Composite wood panels having tongue and groove edges A composite wood panel having a first and second longitudinal edge, wherein the first edge includes a groove and the second edge includes a tongue for interlocking and engaging the complementary edges of an adjacent tongue and groove wood panel. The groov... | 01/13/2004 |
| 6619000 | Clamping device for combined floors A clamping device for combined floors includes a base member having a snapper, a first rib and a second rib extending upwardly form the base member and adapted to be received in the combined floors for connecting the combined floors. The base member has a... | 09/16/2003 |
| 6446405 | Locking system and flooring board A locking system for mechanical joining of floorboards, in which immediately juxtaposed upper parts of taco adjacent joint edges of two joined floorboards together define a joint plane perpendicular to a principal plane of the floorboards, the locking sys... | 09/10/2002 |
| 6421970 | Flooring panel or wall panel and use thereof A building panel, such as a flooring panel or wall panel and a method of assembling the same into a floor, wall cladding, etc. The panel is provided with a locking means in the form of groove (6) and tongue (7) forming a tongue/groove joint for assembling... | 07/23/2002 |
| 6418683 | Flooring panel or wall panel and use thereof A building panel, such as a flooring panel or wall panel and a method of assembling the same into a floor, wall cladding, etc. The panel is provided with a locking means in the form of groove (6) and tongue (7) forming a tongue/groove joint for assembling... | 07/16/2002 |
| 6385936 | Floor tile A floor tile, in particular a laminate panel, parquet element or such like, with an edge profile on at least two opposite edges in the form of a modified groove and tongue joint, is designed in such a way that there is a tongue 20, 30 and a groove 22, 26 ... | 05/14/2002 |
| 6125607 | Wood article and method of manufacture A wood member comprises first and second opposed members made of wood and secured together. Each of the first and second members has spaced sides and a surface extending between the sides. The surfaces include a first portion contoured to define a contact... | 10/03/2000 |
| 6105322 | Combination partition wall A combination partition wall includes a plurality of unit partition wall panels each comprised of a vertical left frame bar, a vertical right frame bar, a horizontal top frame bar and a horizontal bottom frame bar connected in parallel between the vertica... | 08/22/2000 |
| 6098354 | Modular floor tile having reinforced interlocking portions 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 a... | 08/08/2000 |
| 6089784 | Ground-reinforcement panels, and multi-panel, ground-decking arrays incorporating them In an articulated sequence or array of ground-reinforcement panels, each panel has parallel rectilinear edges, one of them provided with a number of male interlock members projecting therefrom in the plane of the panel and the other provided with a corres... | 07/18/2000 |
| 6073411 | Pre-cast rectangular cobblestone A pre-cast cobblestone (10) is comprised of a concrete body (11) of substantially rectangular outline and having a top and bottom wall (13-14) and opposed side walls (15). The top wall (13) is embossed and the side walls (15) have longitudinally shaped fl... | 06/13/2000 |
| 6050044 | Building block A building block has connectors on its side walls comprising interlocking male and female dovetails for connecting blocks side-by-side, in addition to connectors on its upper and lower ends for connecting the blocks vertically. The building blocks also ha... | 04/18/2000 |
| 5791114 | Quick-assembly interlocking tile A specially designed beveled edge (26) guides tile interlocks (14) into place and holds them in place during assembly, thereby facilitating ease and speed of interlocking tile (10) assembly for tight fitting interlocks which actually lock contiguous tiles... | 08/11/1998 |
| 5775046 | Modular construction member Construction member panels have an array of engaging elements and cooperating receiving spaces, such as dovetails and dovetail shaped keyways. The engaging elements are relatively closely spaced such that a pair of such panels can be meshed together, and ... | 07/07/1998 |
| 4426815 | Mortarless concrete block system having reinforcing bond beam courses In a mortarless interlocking concrete block system, general purpose intersection blocks have parallel grooves formed on their bottom surfaces; but each has mating ridges on the upper surface of its inner end only. The top surface of its corner end portion... | 01/24/1984 |
| 4372014 | Construction system and fastener therefore A construction system is disclosed utilizing prefabricated panels which can be assembled in a contiguous, aligned relationship to form a construction section. In one form of the system, the individual panels may include a structural core with a flexible m... | 02/08/1983 |
| 4167599 | Mat and units thereof A mat, such as a bath mat, is made up of a plurality of units which are releasably joined to each other to form a continuous mat structure. Each of these units has a continuous peripheral flange provided with upper and lower edges and an open network of i... | 09/11/1979 |
| 4078351 | Construction system A construction system is disclosed utilizing a prefabricated plank which can be assembled in contiguous, aligned relationship with other similar planks to form a construction section. The individual planks are of varying geometric shapes and are of a comp... | 03/14/1978 |
| 4008548 | Playing surface Multiple plastic molded squares with means to interlock strips of the same so the entire surface expands and contracts during changes in temperature without creating distortion. The top surfaces are rough and under the top surface there are a plurality of... | 02/22/1977 |
