Class 238/83 - Nonmetallic

Subclass of Class 238 - Railways: surface track
Definition: Ties involving nonmetallic substance in their structure.
No. of patents: 29
Last issue date: 05/31/2011

Number	Title	Issue Date
7950591	Composite load bearing structure A composite load bearing member is provided comprising an elongated inner structural member and a thick polymeric composite outer member. An apparatus for producing the composite load bearing member is provided including devices for suspending the inner structural m...	05/31/2011
7866569	Railroad cross tie and method of manufacture A railroad cross tie having an inner core with at least one longitudinally extending metallic reinforcing member and an outer casing. The cross tie includes first and second end caps. The first end cap is disposed proximate a first end of the inner core and the seco...	01/11/2011
7314182	Extruded railroad tie for use with steel tie An extruded railroad tie comprising a bottom, a first side and a second side essentially opposite each other and extending from opposite ends of the bottom and a top surface shaped to receive and support the bottom of a steel tie. The extruded tie is useful for supp...	01/01/2008
7204430	Tie suitable for use on a track A railroad track tie comprises a body formed at least partially of polymeric material, and a reinforcement totally encapsulated within the body, wherein there is at least one opening through the reinforcement with polymeric material therein. ...	04/17/2007
7186457	Cellulosic composite component A component such as a siding panel comprised of a PVC/wood flour composite. Another embodiment is a component such as a siding panel that is made from a PVC/CPE/wood flour composite. The cellulosic composite may be extruded through a die and then bent into the shape...	03/06/2007
7172136	Structural members fabricated from waste materials and method of making the same The structural member and fabrication thereof may be formed by mixing wood products chemically treated for durability and thermoplastics products. The fabrication process may included processing the products to a desired particle size; mixing the particles; processi...	02/06/2007
7147907	Protective covering for landscape ties and timbers and other building materials Apparatus and methods for preventing splinters and minimizing the number of injuries attributable to falling onto pressure-treated wooden members, such as landscape ties or timbers used in play areas and landscape projects, through the use of a resilient cover. A co...	12/12/2006
7017352	Cooling of extruded and compression molded materials The present invention relates to a system and a method for cooling extruded and molded materials. The present invention is especially useful to thoroughly cool an extrudate by directing a cooling fluid toward a surface of the extrudate (e.g., an interior surface tha...	03/28/2006
7011253	Engineered railroad ties To increase the resistance of plastic and/or plastic composite railroad ties tosliding within the ballast of the railroad bed, for example, sliding lengthwise (in the direction of the longitudinal axis of the tie) and sideways (in the direction perpendicular to the ...	03/14/2006
6971211	Cellulosic/polymer composite material The present invention is a component such as a siding panel that may be comprised of various formulations of cellulosic/polymer composite materials. One embodiment of the present invention is a siding panel that is comprised of a cellulosic/PVC composite material. T...	12/06/2005
6659362	Composite railroad ties with optional integral conduit Railroad ties may be refurbished or have their usable life extended by overwrapping with fibrous reinforcement containing a cured matrix associated with the fibers. The ties may be machined prior to overwrapping, and are preferably sawn along their length...	12/09/2003
6604690	Concrete rail tie A concrete railroad tie is provided which utilises a tie 1 having a peripheral rib 5, 1 mm high, around the rail seat to contain adhesive 12 to bond a thick wear plate 8 to the tie. The surface of the tie is well below the top of the plate to reduce the p...	08/12/2003
6336265	Composite railroad cross tie and method of manufacturing same A composite railroad cross tie supporting railroad track rails on a ballast or concrete roadbed is provided comprising an elongated wooden core, an end cap positioned over each end of the core and an outer shell or coating. The wooden core consists of vir...	01/08/2002
6021958	Synthetic railroad tie A synthetic railroad tie is provided including a plurality of solid ties each constructed from plastic and having a rectangular configuration. A pair of rails are each situated over the ties in perpendicular relationship therewith and residing adjacent on...	02/08/2000
5826791	Process for manufacturing a railroad rail support A railroad rail support includes a first and second horizontally oriented rubber tire having a circumferential tread, a top sidewall including a top rim bead and a bottom sidewall having a bottom rim bead, said bottom sidewall and bottom rim bead being ad...	10/27/1998
5449115	Anti-rotting, split resistant railroad cross tie A split-resistant wooden rail-road tie is provided with a plurality of horizontally spaced vertical holes throughout the length of the tie to inhibit expansion or propagation of splits that are developed during use and to enable the ties to be more effici...	09/12/1995
5238734	Railroad ties made of recycled tire fragments This invention relates to the use of rubber fragments from discarded tires in railroad ties. Such ties are made using rubber fragments which contain steel, polyester, or other strands or fibers, and which therefor are less expensive to prepare than fragme...	08/24/1993
5236711	Method for preserving wooden cross-tie A preservative-bearing pad and a method of using same to treat the interface between a railroad cross tie and tie plate. A sandwich of water-soluble active ingredient disposed between two layers of biodegradable hydrophilic backing is simply placed on the...	08/17/1993
5135164	Prestressed concrete railroad tie A prestressed concrete railroad tie having a tie body made up of two end members for supporting rail attachment parts and a central section extending between and interconnecting the end members and having a transverse cross-section smaller than the transv...	08/04/1992
4609144	Railroad tie cover A universal railroad tie cover of a substantially rectangular configuration is provided which is composed of an elastomer material having one or more openings for receiving one or more elastomer pads for increasing the resiliency of rail fastening systems...	09/02/1986
4489884	Railroad tie cover A railroad tie cover of a substantially rectangular configuration composed of an elastomer material with or without an optional pad is provided for increasing the resiliency of rail fastening track systems in railroad track beds with and without ballast t...	12/25/1984
4356968	Railroad tie cover A railroad timber tie cover of a substantially rectangular configuration composed of an elastomer material is provided for increasing the resiliency of rail fastening track systems in railroad track beds with and without ballast to prolong the service lif...	11/02/1982
4355754	Structural members comprised of composite wood material and having zones of diverse density The disclosed invention includes an improved construction of structural members such as railroad crossties, highway spin posts and highway guard posts and to construction of said members from composite wood material including elongated wood flakes and to ...	10/26/1982
4286753	Combination wood plastic railroad tie A combination railroad tie for supporting railroad track rails on a ballast or concrete roadbed. The main body portion of the tie is wood, having a rectangular cross section and a flat upper and lower surface. A plurality of flat plastic plies made of shr...	09/01/1981
4202494	Rail mounting method and apparatus A long life railroad track and tie arrangement and method of making same. A wooden railroad tie is impregnated and covered with a thin layer of polypropylene which serves to protect the tie both from the weather and from mechanical abuse. The tie is apert...	05/13/1980
4151145	Latex-modified, pretensioned and prestressed structures having enhanced structural load bearing capacity This invention relates to a latex-modified, pretensioned, and prestressed concrete structure having at least about a 50% reduction in bond transfer length as compared to a structure not modified by a latex. Such structure is composed of a cured concrete c...	04/24/1979
4150790	Reinforced molded lignocellulosic crosstie and railway assembly A reinforced railroad crosstie formed by molding and bonding comminuted lignocellulosic material into a monolithic beam around a plurality of reinforcing rods, each of which has a plurality of spaced protrusions fixedly attached along its length at specif...	04/24/1979
4113177	Composite railroad cross tie with rail support blocks The present invention relates to an apparatus for retaining the rails of a railroad on the cross ties. Also disclosed herein is a novel railroad cross tie which has superior life expectancy as well as damping capability and is highly resistant to the elem...	09/12/1978
3998166	Multi-rail system and method of installation A multi-rail system and method of installation wherein an additional load carrying rail assembly is installed in centered relation between the rails of a conventional railroad and secured by a first set of tie plates joined to existing ties and a second s...	12/21/1976

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Class 238/83 - Nonmetallic