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Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 8070382 | Interlocking rubber tiles for playgrounds A tile for covering an area and which interlocks with an adjacent tile includes a main body having a top surface and a bottom surface disposed opposite the top surface. The main body has at least a first lateral side and a second lateral side. The tile includes at l... | 12/06/2011 |
| 7955025 | Tile for synthetic grass system An array of tiles for use in a synthetic grass system. The array includes a plurality of tiles wherein a first tile has attachment members on three sides and complementary attachment members on the fourth side and a second tile includes two sets of adjacent sides, t... | 06/07/2011 |
| 7934885 | Reinforced ground cover mats The invention is directed to reinforced ground cover mats which can be used to facilitate the passage of heavy equipment and vehicles on wet or disturbed ground. The ground cover mats are comprised of boards contained within a metal frame. A structural support in th... | 05/03/2011 |
| 7918623 | Cabled mat system with removable blocks A mat system includes a surface and at least first and second mat units. Each mat unit includes a respective plurality of blocks interlinked by respective cables that pass through the blocks. Each mat unit includes cable loops along at least one side section thereof... | 04/05/2011 |
| 7604431 | Interlocking ground cover mats The invention is directed to interlocking ground cover mats that can be used to facilitate the passage of heavy equipment and vehicles on wet or disturbed ground. The ground cover mats are comprised of boards contained within a metal frame. The side surfaces of the ... | 10/20/2009 |
| 7594777 | Wavy tactile walk path The present invention provides a pattern-changing walk path on top of which some groove lines and some raised ridges or dots form an anti-skidding layer for children's play and games. The modular design may be disassembled into the units for storage, taking up littl... | 09/29/2009 |
| 7435034 | Fascines A fascine comprises a plurality of elongate hollow inflatable pipes (10). The pipes (10) can be surmounted by a trackway (11) formed by track sections (28) that are also inflatable. The pipes (10) in the track sections (28) ... | 10/14/2008 |
| 7427172 | Temporary roadway element A plurality of wood planks are embedded and encased in a one-piece rubber mat to form a monolithic one-piece roadway element. A special coupling means is used to couple one roadway element to an adjacent roadway element to form a roadway surface over which heavy equ... | 09/23/2008 |
| 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 |
| 7404689 | Drainage board system A coupling assembly is attached to the upper surface of a board having upper and lower surfaces. The coupling assembly is extendable upwardly for coupling to a covering surface. A plurality of projections on the lower surface of the board are extendable downwardly f... | 07/29/2008 |
| 7404690 | Temporary road element A road element is formed of a one-piece cage that includes two layers of orthogonally arranged rebars which are welded together. The layers are connected by connecting rebars that are welded to the rebars of the layers at the intersections and the one-piece cage is ... | 07/29/2008 |
| 7370452 | Mat assembly for heavy equipment transit and support A mat assembly particularly suited for heavy equipment transit and support, such as roadway construction and the like. The mat assembly is made up of a number of structural members preferably having a “double I-beam” cross-sectional shape. Each I-beam has spaced... | 05/13/2008 |
| 7364383 | Roll-up surface, system and method The present invention provides a ground flooring device, system and method which includes connectable slats or panels having connection means which allow a series of slats to be quickly assembled, rolled up for storage or transport, and unrolled for deployment. The ... | 04/29/2008 |
| 7350337 | Tile protector platform The present invention 10 discloses a floor-tile platform 12 that is used with freshly laid tile 16 to allow walking on the floor 30 while the adhesive dries prior to applying the grout. The tile-like platform 12 is suspended over t... | 04/01/2008 |
| 7341401 | Subsurface drainage system and drain structure therefor A subsurface drainage assembly for directing fluid drainage from a surface. The subsurface drainage assembly includes a plurality of drain structure panels linked together in a manner that permits movement of one drain structure panel relative to the adjacent drain ... | 03/11/2008 |
| 7329068 | Grid locked stiffened panels with interlocking features Panel for aircraft landing strip. ... | 02/12/2008 |
| 7316519 | Paving member A paving member (2) comprising a surface (4) for being walked on, an image (6) below the surface (4), and a source of light for illuminating the paving member (2), the paving member (2) being of such a material and construct... | 01/08/2008 |
| 7300224 | Support grid platform for supporting vehicles over ecologically sensitive terrain A grid-type platform especially suited for use supporting vehicle wheels to provide traction while traveling off-road especially through environmentally sensitive topography, and to prevent unnecessary and excessive wear and damage to such off-road paths or trails. ... | 11/27/2007 |
| 7290377 | Block connector A block connector for pre-cast building blocks comprising a top body portion to be fitted into the bottom surface groove of an upper block and a bottom body portion to be fitted into the top surface groove of a lower block. The top and bottom body portions define th... | 11/06/2007 |
| 7270497 | Paving element A cluster of paving elements is formed with a peripheral edge having a re-entrant formation formed between the upper supporting surface and the lower, supported surface. The formation engages a complimentary formation on an adjacent cluster to inhibit relative movem... | 09/18/2007 |
| 7264273 | Ballast system for use in a cargo bed of a vehicle A ballast system for use in a cargo bed of a vehicle, such as a pick-up truck, provides generally even weight distribution over rear or powered wheels of the vehicle. The ballast system provides additional weight to the cargo bed of the vehicle, thereby improving st... | 09/04/2007 |
| 7258303 | Aircraft partition designed to separate a cargo part from a cockpit or from a passenger compartment An aircraft includes a partition designed to separate a cargo part from a cockpit or a passenger compartment. The partition includes a corrugated structure, defining several corrugations with an approximately omega section extending along the direction of the height... | 08/21/2007 |
| 7255314 | Extendable support structures Various types of extendable support structures provide a lateral dimension that is defined by at least one lazy tong, and the longitudinal dimension is variable by extension and retraction of the at least one lazy tong. The extendable structure may include a plurali... | 08/14/2007 |
| 7249912 | Temporary platform or roadway and method of assembling same A temporary platform or roadway is created using one or a plurality of optionally connected support components to form a top surface upon which panels are placed. The support components are comprised of gabion containers having one or a plurality of compartments int... | 07/31/2007 |
| 7244076 | Method for installing paving blocks A method of installing paving blocks comprises preparing an area to be paved to a desired grade. A preformed, load-bearing sheet of material, e.g., extruded polystyrene, is placed on the prepared area. Paving blocks are then laid in a desired pattern on the sheet of... | 07/17/2007 |
| 7243471 | Friction stir welding method, and hollow shape member for friction stir welding Face plates 11 and 12 of a hollow shape member 10 are abutted against face plates 21 and 22 of a hollow shape member 20. Grooves 18 formed to said face plates 11 and 12 at the abutted region receive proj... | 07/17/2007 |
| 7229232 | Reinforced mat for unstable surfaces Terrain often hinders wheeled vehicles as cars mire in sand and wheeled carts in mud. Beaches, sandy playgrounds, and mud inhibit travel of wheelchairs. A reinforced mat upon a lattice of projections provides a stable surface for wheels and wheelchairs. The projecti... | 06/12/2007 |
| 7228805 | Temperature controlled railway car A composite box structure mounted on and attached to a railway car underframe to form a temperature controlled railway car. The composite box structure defined in part by an exterior metal surface, interior side stakes and at least one layer of fiber reinforced mate... | 06/12/2007 |
| 7210876 | Rollable load bearing mat for turf areas A rollable load bearing mat for protecting turf areas from damage caused by weight bearing loads, such as vehicle or pedestrian traffic, configured from a plurality of interconnected mat units having a plurality of spaced apart cell rows comprising a plurality of ge... | 05/01/2007 |
| 7211314 | Mat An improved mat is disclosed. Long and short legs support the mat and cause it to feel resilient although it is fabricated from hard rubber. The mat has drain holes on vertical surfaces. Ribs prevent the mat from embedding within grating. Grit is selectively placed ... | 05/01/2007 |
| 7188576 | Modular deck structure of a pontoon boat A modular snap-tight interlocking deck and process for constructing a pontoon boat with said deck is described. The modular deck includes lightweight planks that snap together using a tongue-in-groove design. Once joined, the planks are inseparable and form a rigid,... | 03/13/2007 |
| 7189025 | Preformed pavement warning assembly and method A detectable pavement warning assembly includes a web having a plurality of projections attached to one another by linear connectors, a planar cover with a series of apertures for receiving the projections therethrough and an adhesive sheet. In use a rigid substrate... | 03/13/2007 |
| 7178303 | Friction stir welding hollow frame member This invention provides a configuration of a joint that allows a satisfactory welded joint to be formed with reduced deformation of the joint region when two-face structures (panels) are friction-welded end to end. The panels 31, 32 each have two substantiall... | 02/20/2007 |
| 7171791 | Floorboards and methods for production and installation thereof Floorboard and openable locking system therefor comprise an undercut groove on one long side and projecting tongue on an opposite long side of the floorboard. The undercut groove has a corresponding upwardly directed inner locking surface at a distance from its tip.... | 02/06/2007 |
| 7163351 | Tire cleaning apparatus The tire cleaning apparatus provides a vibration-inducing surface for a vehicle passing over the tire cleaning apparatus in order to remove dirt and debris from the tires of the vehicle. The tire cleaning apparatus includes at least one tire-cleaning frame, which is... | 01/16/2007 |
| 7160054 | Expanding weed inhibitor An expanding grass or weed inhibitor around a growing tree or shrub trunk with a series of overlapping, semi-circular wings (16) attached to the base (10), rotating via multiple pivot bolts (18). With an expanding trunk (14) diameter, the... | 01/09/2007 |
| 7160052 | Paving system using arrays of vertically interlocking paving blocks A continuous covered area, such as a sidewalk or patio, is formed by vertically interlocking tessellated components. One embodiment, termed PORTAPAVE™, achieves this interlocking via an array of uniquely configured two-sectioned pavers. Each paver has a first sect... | 01/09/2007 |
| 7160055 | Road mat A road mat having a mat body with a first coupling end and a second coupling end. A first locking mechanism is provided at the first coupling end that includes a male coupling member and a female coupling member. A second locking mechanism is provided at the second ... | 01/09/2007 |
| 7160053 | Bamboo mat board and method for producing the same A bamboo mat board element with a double-layered construction, a constant dimension, each of the elements is formed with a projecting tenon at each of two adjacent sides, respectively, and a concave mortise at each of the other two adjacent sides, respectively, for ... | 01/09/2007 |
| 7160049 | Paving material for absorbing electromagnetic wave and pavement structure using it An electromagnetic absorber formed of conductive fiber or the like, such as carbon fiber having an overall length corresponding to the wavelength of electromagnetic waves to be absorbed, is mixed into a base material to form an electromagnetic wave-absorbing pavemen... | 01/09/2007 |