Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7503723 | Resilient surround tiles Tiles made of a resilient material bear an irregular rippled surface shaped so that the ripples pass from one tile to another without discontinuity. The rippled surface is taken from a natural surface such as beach or river sand which has had water flowing over it. ... | 03/17/2009 |
| 7452159 | Method of making a multi-layered structure for tree well skirt and sidewalks A flexible, porous and durable tree well skirt and a sidewalk structure are made of a cushion base of butadiene rubber and a wear layer of ethylene propylene diene monomer (EPDM). The butadiene rubber is mixed with an isocyanate polyurethane binder and spread on the... | 11/18/2008 |
| 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 |
| 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 |
| 7344334 | Paver system A paver system comprising a plurality of paver pieces and at least one substrate. Each of the paver pieces has a top surface and a bottom surface. The bottom surface of the paver pieces is configured for mating with the upper surface of the substrate, whereby paver ... | 03/18/2008 |
| 7341661 | Clarification and sorptive-filtration system for the capture of constituents and particulate matter in liquids and gases A sorptive-filtration system for removing at least one of negatively or positively charged ions, complexes or particulates from an aqueous stream. The system includes a) flow formed substantially from at least one of rainfall-runoff or snowmelt-runoff; b) a filter c... | 03/11/2008 |
| 7332118 | Method of preparing and method of applying a vibration damping system The vibration damping system, especially for use in the damping of vibrations e.g. from trains, tramcars, other traffic and damping of ground borne vibrations in general, comprises an anti-vibration plate in the form of a plate having a first and a second major surf... | 02/19/2008 |
| 7258326 | Wall made of bagel split tires Above ground fencing is constructed with slices of used tires from vehicles. There are various arrangements of tire slices and inter-slice binding and anchorage of slices in places. One use for such fencing is for roadway collision safety. One use of the tread porti... | 08/21/2007 |
| 7223047 | Safety improvements for airport runways and taxiways Safety improvements of airport runways and taxiways are achieved by providing a flexible, water-impermeable surfacing material on a compacted soil base directly adjacent to an edge of airstrip shoulders. A synthetic grass surface is provided on the area beyond the s... | 05/29/2007 |
| 7207742 | Safety improvements for airport runways and taxiways An airstrip shoulder-bordering surface arrangement for extending the width of existing runway and taxiway shoulders comprising a flexible water-impermeable surfacing material extending laterally of a side edge of an airstrip shoulder, an artificial grass surface adj... | 04/24/2007 |
| 7125199 | Elastic permeable pavement comprising waste-polyurethane chips for use on new roads and a paving method using the same An elastic permeable pavement comprising waste-polyurethane chips for use on new roads and a paving method using the same. This pavement uses a binder specially developed to secure the binding between an upper polyurethane chip layer and a lower permeable concrete l... | 10/24/2006 |
| 7096632 | Anchor sheet and attachment devices A method and apparatus for connecting anchor sheets to each other and/or to a floor. The approach includes using attachment pieces which fit into an area of reduced thickness of the anchor sheet which surround a cut away of the anchor sheet. In one embodiment, the a... | 08/29/2006 |
| 7097382 | Elastic drainage pavement comprising waste polyurethane chips for use on existing roads and a paving method using the same An elastic drainage pavement comprising waste-polyurethane chips for use on existing roads and a paving method using the same, which uses a binder specially developed to secure the binding between an upper polyurethane-chip layer and a lower existing-pavement layer ... | 08/29/2006 |
| 7029744 | High traction flooring laminate The present invention relates to a laminate, preferably a flooring laminate suitable for use wherever traction is needed or desired, whether due to natural or man-made conditions either indoors or outdoors. The laminate can be applied over existing flooring. The lam... | 04/18/2006 |
| 6966841 | Playground play surface A unique playground play surface that is safe and suitable for use by physically challenged individuals and those that require the assistance of wheelchairs or other devices. The playground play surface consists of a base layer, a covering layer, a bag layer, a loos... | 11/22/2005 |
| 6960046 | Permeable and elastic pavement blocks Permeable and elastic pavement blocks comprising waste-polyurethane chips, which use a binder specially developed to secure the binding between an upper polyurethane-chip layer and a lower permeable-concrete layer as well as the binding among the waste-polyurethane ... | 11/01/2005 |
| 6946508 | Artificial marble and producing method thereof A molding compound in swelling gel phase is prepared by crushing a swelling gel, swelled with a monomer in liquid phase which polymerizes a compound having three-dimensional linking by a radical polymerization reaction, into a predetermined size, and a molding compo... | 09/20/2005 |
| 6945732 | Flanged road mat and method and apparatus for assembling same An overlapping flanged mat system for assembling the mat system for fabricating an artificial road including parallel upper surface boards extending longitudinally in one array, an intermediate plurality of surface boards transverse to the upper layer, and a lower s... | 09/20/2005 |
| 6916250 | Environmentally simulated golf game An indoor miniature golf game is provided with a plurality of environmentally realistic simulated fairways and greens with an optional plurality of tee off positions. Sequential visual activity segments with intermediate target areas are provided on the fairways bet... | 07/12/2005 |
| 6786674 | Cushioned surface structure and methods for making the same A cushion surface structure, such as for a tennis court, is disclosed. In an exemplary embodiment, the surface structure includes one or more elastomeric layers comprising elastomeric particles, such as ground tire rubber, applied to a base surface. The elastomeric ... | 09/07/2004 |
| 6702514 | Paving material for footways and method of producing the same A paving material for footways, possessing high strength and lightweight property. The paving material for footways, comprising an upper layer and a lower layer, wherein the upper layer is made of rubber chips (A1) and a synthetic resin (A2) for binding t... | 03/09/2004 |
| 6435765 | Athletic track with post-tensioned concrete slab An athletic track having a post-tensioned concrete slab supporting a resilient surface. The athletic track has opposed, parallel rectangular side areas and opposed semi-circular end areas connecting the side areas. The concrete slab is cast in place witho... | 08/20/2002 |
| 6399181 | Non-skid surface structure A non-slip, water resistant, oil resistant surface structure for use where water and/or oil are likely to create a slippery surface, including a rubber-bottom mat upon which a thrice coated, non-slip surfaced substrate is fastened, the coating on the subs... | 06/04/2002 |
| 6361245 | Method and apparatus for constructing a temporary parking lot A method of constructing a temporary vehicle parking lot (10) on a land area (12) comprises the steps of: providing a composite drainage material (20) through which water drains; and covering the land area (12) with the composite drainage material (20) so... | 03/26/2002 |
| 6358621 | Synthetic asphalt There is disclosed a synthetic asphalt comprising a synthetic bitumen mixed with filler and aggregate. Pigments may be added to the synthetic asphalt so as to produce a wide range of differently-colored surfacing materials. The synthetic asphalt may be ap... | 03/19/2002 |
| 6328500 | Segmented toy roadway, toy roadway segment, and method of making same A kit is provided for assembling a closed-loop toy simulation of a roadway comprising at least four curved road segments and at least two straight road segments, each road segment having an upper non-skid surface and at least one marking on such surface t... | 12/11/2001 |
| 6080460 | Hoe-chucking mat with ground-seal release means A mat comprising shorter and longer lengths of tread portions cut from recycled tires and strung on cable is specially devised for protecting small-scale ground level ecosystems from destruction by crawler track propelled heavy equipment. To prevent earth... | 06/27/2000 |
| 6071039 | Structure of surface portions of grounds On a roadbed layer (4) is formed a cushion layer (5) of 50 mm to 200 mm in thickness which is formed by using elastic chips alone or in mixture with sand, each elastic chip being formed of elastic material and having a size of 7 mm to 0.05 mm, preferably ... | 06/06/2000 |
| 6061980 | Cushioning pad A cushioning pad or mat for protecting a rig surface or alternatively, an article placed on the pad wherein the mat is made of elements which are laminated construction with a base layer of neoprene, or similar materials, and the elements are connected wi... | 05/16/2000 |
| 6048129 | Pavement mat formed from discarded tires and method for making same A pavement mat to be used in the construction of temporary roadways comprising a plurality of vehicle tire segments tightly compressed and bound between preceding and succeeding stabilizer members. Each of the stabilizer members has an end plate and a plu... | 04/11/2000 |
| 5906454 | Environmental porous overlayer and process of making the same A solid state porous rubber overlayment friction course is formed from recycled rubber, plastic and/or other products, and facilitates drainage of standing water from the road surface. The overlayment may have holes running through its surface to expedite... | 05/25/1999 |
| 5820294 | Wheelchair access pathway for sand, beaches, lawns, grass and fields A pathway for providing the transit of a wheelchair, including a person therein, over an uneven terrain surface that resists the rolling traction of a wheelchair, comprising a longitudinally extended flexible mat-like pathway configured such that the surf... | 10/13/1998 |
| 5749787 | Floor cover, especially sports field cover A floor covering, in particular for sport fields, based on elastic plastics, has a substantially flat top side on which one can walk and a bottom side spaced apart therefrom. The covering has an anisotropic elasticity in the desired running direction, so ... | 05/12/1998 |
| 5630674 | Road surface A road surface formed by laying a multiplicity of molded elastic plates 2 each containing a rubber material 6 mixed with an aggregate 7 having anti-wear properties. These elastic plates 2 are laid on a roadbed 3, and are fixed by fixing means 20. Strong a... | 05/20/1997 |
| 5618131 | Modified artificial surface and method and apparatus of making the same An artificial surface having at least one compartment with a filler therein has the filler held in position by a vacuum.... | 04/08/1997 |
| 5605721 | Shock absorbing underlayment for artificial playing surfaces The present invention is directed to an underlayment composition for an artificial playing surface comprised of a butadiene rubber, such as polybutadiene or styrene-butadiene that is commercially available as recycled polycord tires that have been granuli... | 02/25/1997 |
| 5601900 | Anti-skid mat An anti-skid mat for placement upon a slippery support surface comprising a resilient matrix sheet member having a top surface and a bottom surface. An abrasive structure on the bottom surface of the resilient matrix sheet member is for preventing slippag... | 02/11/1997 |
| 5587218 | Surface covering An improved surface covering includes a base having a plurality of receiving grooves on one side and a plurality of working grooves on the other side. Each receiving groove includes gripping projections and is constructed to receive and grip a filler mate... | 12/24/1996 |
| 5560734 | Bitumastic simulated paved surface A method of laying a bitumastic simulated paved surface includes spreading a layer of hot bitumastic material on a foundation layer, the bitumastic material including a thermoplastic rubber copolymer material, filler and reinforcing fibres, allowing the b... | 10/01/1996 |
| 5525416 | Play area surface treatment A play area surface treatment is provided comprising, from top to bottom: a layer of polymeric mesh, a layer of landscape separator, six inches of ground rubber buffing, a second layer of landscape separator, and six inches of pea gravel as a base materia... | 06/11/1996 |
