| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 295 | Railway wheels and axles | 33 |
| 295001000 | WHEELS | 21 |
| 20090051182 | RAILROAD WHEEL STEELS HAVING IMPROVED RESISTANCE TO ROLLING CONTACT FATIGUE - Steels having a pearlitic structure and containing 0.65 to 0.80 weight percent carbon, 0.90 to 1.10 weight percent silicon, 0.85 to 1.15 weight percent manganese, 0.001 to 0.030 weight percent phosphorus, 0.009 to 0.013 weight percent niobium, 0.05 to 0.15 nickel, 0.20 to 0.30 weight percent molybdenum, 0.10 to 0.30 weight percent vanadium and 0.005 to 0.040 weight percent sulfur with the remainder of said steel being iron and incidental impurities, can be used to make railway wheels that are particularly resistant to rolling contact fatigue and, hence, shelling. | 02-26-2009 |
| 20110101717 | RAILROAD WHEEL WITH WEAR RESISTANT FLANGE - The present disclosure relates to the railroad wheel with wear resistant flange ( | 05-05-2011 |
| 20120181805 | GUIDE WHEEL DEVICE FOR GUIDE RAIL VEHICLE - A guide wheel device for a guide rail vehicle includes a wheel shaft rotatably supported on a bearing, and a main guide wheel and a branch guide wheel rotatably mounted to upper and lower portions of the wheel shaft, wherein the main guide wheel has a rotation center eccentric to an axis of the wheel shaft, a plurality of fitting body receiving portions are provided in an outer peripheral surface of the wheel shaft so as to be arranged sequentially in a circumferential direction, a fitting body to be fitted into the fitting body receiving portions is provided in the bearing, and fitting adjusting means capable of pressing the fitting body against the fitting body receiving portions toward the wheel shaft or releasing the pressing of the fitting body is provided. | 07-19-2012 |
| 295007000 | Sound deadeners | 2 |
| 20100283276 | RAIL WHEEL - A rail wheel with a wheel body and wheel brake discs connected thereto with fastening elements on both sides is designed in such a way that at least in the respective contact regions of the wheel brake discs a mechanically and thermally highly resilient intermediate layer is arranged on the wheel body. | 11-11-2010 |
| 20160023510 | SOUNDPROOF WHEEL FOR RAILWAY VEHICLE - This soundproof wheel includes a soundproofing device ( | 01-28-2016 |
| 295008000 | Composite cast | 2 |
| 20120175905 | Method and System for Manufacturing a Wheel - A system for manufacturing a wheel includes a cope mold portion comprising internal cope mold walls and a drag mold portion comprising internal drag mold walls. The internal walls define at least in part perimeter boundaries of a wheel cavity. The wheel cavity comprises a cavity center portion configured to form a wheel center portion of a wheel after solidification of a molten alloy in the cavity center portion, a cavity plate portion configured to form a wheel plate portion of the wheel after solidification of a molten alloy in the cavity plate portion, and a cavity flange portion configured to form a wheel flange portion of the wheel after solidification of a molten alloy in the cavity flange portion. The system includes a chill component configured to provide directional solidification from the cavity flange portion toward the cavity plate portion of molten alloy in the wheel cavity. | 07-12-2012 |
| 20150367679 | RAILCAR WHEEL, APPARATUS AND METHOD OF MANUFACTURE - A cast metal railroad car wheel includes a hub section, a tread section, and an uninterrupted annular web extending between and supporting the tread section on the hub section. The web includes a disk-shaped surface that is continuously concave and that does not include a reversely curved portion. A V-process casting process casts railroad wheels using a vacuum-process casting mold with opposing halves each partially filled with unbonded sand and sand-retaining-plastic film and a vacuum application port and that, when positioned together with the unbonded sand held to shape by vacuum and the film, define a cavity shaped to form a railroad car wheel. The V-process includes feeding molten metal into the cavity, cooling the molten metal, and releasing a vacuum to cause the sand to fall away from the railroad car wheel. | 12-24-2015 |
| 295011000 | Tire cushions | 1 |
| 20080217940 | Railway Vehicle Wheel with Elastic Rubber Suspension - A rubber-sprung rail vehicle wheel which is designed in particular, but not exclusively, for rail vehicles with a low design height is described. In this rail vehicle wheel, the wheel tire ( | 09-11-2008 |
| 295015000 | Tire fasteners | 1 |
| 20090218837 | METHOD FOR REPAIR OF RAIL WHEELS AND REPAIRED ARTICLE - A method includes shrink fitting a ring member about a railroad wheel body and metallurically bonding the ring member to the railroad wheel body. A wheel assembly includes an inner portion obtained from a worn railroad wheel, a ring member disposed about the inner portion, and suitable electroplating material disposed on at least one of the faying surfaces. The wheel assembly may be heated under suitable conditions to provide diffusion bonding across interfacing faying surfaces to produce an integral wheel structure. Appropriate quenching, tempering, and finishing processes may be utilized to obtain desired properties. An article formed thereby includes an inner body portion obtained from a worn railroad wheel and a metallurically bonded outer circumferential portion. The outer portion may comprise a composition selected for desired wear characteristics. | 09-03-2009 |
| 295021000 | Webs | 2 |
| 20140300122 | RAILWAY WHEEL - The invention relates to transport engineering, in particular to railway transportation vehicle wheels. | 10-09-2014 |
| 20160186823 | FRICTION RING BODY FOR A RAIL WHEEL BRAKE AND RAIL WHEEL BRAKE - In order to devise a friction ring body for arrangement on the wheel web of a rail wheel for a rail vehicle for forming a rail wheel brake that can be easily produced, it is proposed that the friction ring body has a friction ring cut out of a flat metal material and a plurality of attachment bodies provided on the friction ring by means of an integrally bonding connection process. | 06-30-2016 |
| 295027000 | Integral cast | 1 |
| 20130193705 | CAST STEEL RAILWAY WHEEL - A cast steel railway wheel includes a hub that has an axial bore. A rim is concentric with the bore. A plate extends substantially radially from the hub to the rim. The plate has a front face and a rear face. The plate has a plurality of spokes that extend between the hub and the rim. Adjacent spokes have different thicknesses defined between the front face and the rear face. | 08-01-2013 |
| 295030000 | Composition | 6 |
| 20090134647 | RAILROAD WHEEL STEELS HAVING IMPROVED RESISTANCE TO ROLLING CONTACT FATIGUE - Steels having a pearlitic structure and containing 0.65 to 0.80 weight percent carbon, 0.90 to 1.10 weight percent silicon, 0.85 to 1.15 weight percent manganese, 0.001 to 0.030 weight percent phosphorus, 0.009 to weight percent niobium, 0.05 to 0.15 nickel, 0.20 to 0.30 weight percent molybdenum, 0.10 to 0.30 weight percent vanadium and 0.005 to 0.040 weight percent sulfur with the remainder of said steel being iron and incidental impurities, can be used to make railway wheels that are particularly resistant to rolling contact fatigue and, hence, shelling. | 05-28-2009 |
| 20100276955 | TREATMENT OF RAILWAY WHEELS - A method of treating a steel railway wheels to form a required distribution of compressive residual stress in the rim. In general terms the wheel heated and then quenched from the plate towards the rim. The wheel is first heated to form austenite throughout the plate and rim portions. The wheel is then cooled to form bainite/martensite in the plate portion. The wheel is cooled to form bainite/martensite in an inner portion of the rim. The wheel is cooled to form bainite/martensite in an outer portion of the rim. | 11-04-2010 |
| 20130119690 | SELF-COOLING TROLLEY - A self-cooling trolley includes a wheel formed of a non-ferromagnetic material with a groove between two flanges disposed on a circumference. At least one pair of magnets are disposed in proximity to the wheel. Each pair of magnets comprises a north magnet with a north magnetic pole in proximity to the wheel and a south magnet with a south magnetic pole in proximity to the wheel. The at least one pair of magnets generate an eddy current within the rotating wheel opposing an angular motion of the wheel. Self-cooling means is provided on the wheel to generate an air flow toward and/or away from the wheel as the wheel rotates. Related methods are also described. | 05-16-2013 |
| 20140145460 | RAIL WHEEL AND METHOD FOR PRODUCING A RAIL WHEEL - A rail wheel with a wheel body and friction discs connected thereto on both sides by fastening elements, wherein a multi-layer coating is arranged at least between the respective contact surfaces of the friction discs and the contact surfaces of the wheel body with a coating which can be subjected to mechanically and thermally high loading. Also disclosed is a method for producing a rail wheel. | 05-29-2014 |
| 20140191525 | USE OF CARBON NANOFIBER COMPOSITE MATERIALS IN THE MANUFACTURE OF RAILCAR COMPONENTS - Systems and processes for manufacturing railcar components, such as railcar wheels, using carbon nanofiber composite materials. | 07-10-2014 |
| 20150130202 | RAIL WHEEL - A rail wheel with a wheel body and wheel brake discs connected thereto with fastening elements on both sides is designed in such a way that at least in the respective contact regions of the wheel brake discs a mechanically and thermally highly resilient intermediate layer is arranged on the wheel body | 05-14-2015 |
| 295310100 | Wheel tread | 2 |
| 20140117691 | COMBINATION ROLLER COASTER WHEEL - Wear resistant metal ring thermally locked at a machined interface to a lightweight alloy roller coaster wheel body and method of machining and thermally locking. | 05-01-2014 |
| 20140252790 | External Runflat Apparatus - An external runflat apparatus for a guide wheel system of a monorail transport system. The external runflat apparatus includes a hub member and a tread member. The tread member is connected to the hub member and includes a base member and a covering over the base member. | 09-11-2014 |
| 295035000 | Bushings | 1 |
| 20110018295 | Trolley wheel assembly - A trolley wheel assembly comprising a trolley bracket having a trolley wheel rotatably mounted therein. The trolley wheel has a central opening formed therein which receives a cylindrical bushing positioned therein. A pin means extends through the trolley bracket and the bushing to rotatably mount the trolley wheel on the trolley bracket. The bushing is comprised of a self-lubricating material as specifically described in the application. | 01-27-2011 |
| 295360100 | AXLE | 11 |
| 20100308612 | AXLE FROM A SEAMLESS TUBE FOR RAILROAD VEHICLES, AND A PROCESS FOR MANUFACTURING AN AXLE FROM A SEAMLESS STEEL TUBE FOR RAILROAD VEHICLES - The present invention relates to an axle forged from seamless tubes, with a chemical composition suitable to guarantee high fatigue strength, improved yield strength and tensile strength, and having reduced weight for use on railroad vehicles. The present invention further relates to a process of manufacturing the axle forged from seamless steel tube with high fatigue strength, improved yield strength and tensile strength, and having reduced weight for use on railroad vehicles, which is produced from pig iron or scrap, casting, reheating furnace, perforation of billets, elongation of perforated billets, hollow finishing, forging and finish machining, which includes a supporting and centering chamfer at the inner edge of the inspection bore of the end and smooth recess in the entrance of the threaded bores. | 12-09-2010 |
| 20120319420 | WHEELSET AXLE PROTECTION - The wheel set shaft of a rail vehicle is protected in an effective and economical manner by a protection device. The device includes an elastomeric mat which can be easily placed on the wheel set shaft and retaining means for retaining the elastomeric mat on the wheel set shaft. | 12-20-2012 |
| 20130161969 | Bearing unit for use in an axlebox of a railway vehicle and axlebox including the same - The invention relates to a bearing unit for use in an axlebox of a railway vehicle, including a bearing having an inner ring and a metallic outer ring and rolling elements arranged therebetween. The bearing is configured to support an axle of said railway vehicle. Further, a sleeve surrounding the outer ring of the bearing is provided. It is proposed that the sleeve is made of a non-metallic material. | 06-27-2013 |
| 20130207409 | BOGIE SHAFT FOR A RAILWAY VEHICLE HAVING A STONE GUARD AND METHOD FOR PRODUCING SAME - A bogie shaft for railway vehicles has a cladding which contains a metal component. The metal component is preferably electrochemically less refined, but no greater than exactly as refined, as a material of the bogie shaft. Corrosion on the bogie shaft can thereby be advantageously prevented. The metal material of the cladding is also able to effectively protect the bogie shaft against stone impact. The cladding can be advantageously applied by cold gas spraying, or a sleeve can be bent around the bogie shaft for forming the cladding. The cladding can advantageously contain particles that can make it more resistant to stone impact. The particles can be made, for example, of hard materials, of particularly ductile particles, or of particles made of a memory shape alloy. | 08-15-2013 |
| 20140306475 | TRAIN AXLE ASSEMBLY - A train axle assembly includes a train axle, a ring assembly coaxially mounted on the train axle and a structure operatively engaged by the ring assembly and mounted on the train axle. The ring assembly has an outer diameter and a main section adjacent the outer diameter. The ring assembly includes a projection extending axially from the main section which is located at a diameter less than the outer diameter of the ring assembly. The projection has a portion of a diameter contacting the train axle so that the ring assembly is affixed to the train axle to provide resistance to relative rotation and axial movement between the ring assembly and the train axial. | 10-16-2014 |
| 295037000 | Sleeved and fixed wheels | 3 |
| 20090206623 | DIFFERENTIAL ACTION RAILROAD CAR AXLE ASSEMBLY - A differential action railroad car wheelset axle has two individual stub axles, each having one or more annular rings or grooves on the interior ends, said interior ends of the individual stub axles being rotatably mounted within a multi-piece sleeve assembly. The axle assembly has provision for safety pins to prevent independent rotation during installation in the railcar truck frame and also a device to permit relocking or unlocking the independent axle rotation after the original safety pins have been removed. Dry lubricant coatings eliminate the need for periodic liquid lubrication or maintenance. The differential action of the wheelset reduces the horsepower requirement by approximately 30 percent while also reducing the maintenance requirements for both wheels and track in locations where horizontal curves are predominant. | 08-20-2009 |
| 20160107482 | WHEELSET SHAFT FOR RAIL VEHICLES - A wheelset shaft for rail vehicles, wherein in order to be able to read a wheelset identification number with the wheelset shaft in any position, and to do so quickly, correctly and automatically, at least one RFID Tag is attached to the wheelset shaft. | 04-21-2016 |
| 20160375916 | Wheel Axle Comprising at Least Two Protection Devices - The invention relates to a wheel axle for a vehicle, the wheel axle comprising a shaft extending along a main axis, a first protection device and at least one second protection device, each device comprising a body at least partially surrounding the shaft in a plane perpendicular to the main axis, the body having a first end portion and a second end portion, the end portions being opposite one another along their main axis. The first end portion of the first device at least partially surrounds the second end portion of the second device in a plane perpendicular to the main axis. | 12-29-2016 |
| 295039000 | Coupling | 2 |
| 20100320789 | Railway car independent axles - A railway car axle includes a first stub axle mounted in a rigid hollow sleeve. The first stub axle has opposite inner and outer ends, and the sleeve has a first open end and an oppositely disposed first terminal end. A first bore is defined by a cylindrical wall extending from the first open end to the first terminal end. The first stub axle is journalled in the first bore so as to position the inner end of the first stub axle adjacent the first terminal end and so that the outer end of the first stub axle extends from the first open end. Separate first inner and first outer bearing housings, and corresponding first bearings, are mounted tight to the inner ends of the first stub axle or to outer housing and the first open end of the sleeve respectively so as to allow rotation of the first stub axle relative to the sleeve. Means are provided for retaining the first stub axle in the first bore. A mirror image may be provided for mounting a second stub axle in the sleeve. The stiffness for resisting bending of the axle due to downward loading of the axle laterally outwardly of wheels mounted on the ends of the axle is provided by the wall thickness of the sleeve. | 12-23-2010 |
| 20100320790 | Railway car independent axles with axle locking mechanism - A railway car axle includes a first stub axle mounted in a rigid hollow sleeve. The first stub axle has opposite inner and outer ends, and the sleeve has a first open end and an oppositely disposed first terminal end. A first bore is defined by a cylindrical wall extending from the first open end to the first terminal end. The first stub axle is journalled in the first bore so as to position the inner end of the first stub axle adjacent the first terminal end and so that the outer end of the first stub axle extends from the first open end. Separate first inner and first outer bearing housings, and corresponding first bearings, are mounted tight to the inner ends of the first stub axle or to outer housing and the first open end of the sleeve respectively so as to allow rotation of the first stub axle relative to the sleeve. A mirror image may be provided for mounting a second stub axle in the sleeve. The stiffness for resisting bending of the axle due to downward loading of the axle laterally outwardly of wheels mounted on the ends of the axle is provided by the wall thickness of the sleeve. A locking mechanism may be provided to lock the sleeve onto one stub axle so that the stub axle is not free to rotate independently of the sleeve. | 12-23-2010 |
| 295420100 | Outer axle or housing positioned about axle by roller or ball bearing | 1 |
| 20130207410 | AXLE BOX FOR A RAILWAY VEHICLE - An axle box for a railway vehicle bogie comprises a rolling bearing having an outer ring element, an inner ring element, rolling elements mounted there between, and a seal element, the inner ring element being adapted to be secured by screw bolts to an axial end of bogie axle. The axle box comprises an end cap comprising a flange with an inner face and an outer face, an annular first radial surface portion of the inner face being so defined that it is able to lean against an axial end of the inner bearing ring element of the rolling bearing. The flange comprises a central part traversed by screw bores. The flange comprises a first inner axial ridge running alongside the outer circumference of the cap, and extending axially towards the rolling bearing all around the flange, further than the first radial surface portion. | 08-15-2013 |
| 295043000 | WHEEL-ATTACHING DEVICES | 1 |
| 20090200817 | AXLEBOX RETAINER KEY, AN ASSEMBLY INCLUDING THE KEY AND A METHOD OF FASTENING THE KEY - An axlebox retainer key ( | 08-13-2009 |
