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| Number | Title | Issue Date |
| 7625030 | Reduction of torsional vibration in rail vehicle wheel sets In order to reduce torsional vibrations and wheel slip in a wheel set for a rail vehicle the wheel set comprising a pair of wheels connected by an axle is provided with a vibration absorbing device comprising a mass, resiliently mounted on the wheel set and adapted ... | 12/01/2009 |
| 7243894 | Mount for vibratory elements The invention is a mounting system for a vibrational element. The vibrational element has a longitudinal axis, an outer surface and an axial displacement node. The mounting system includes an isolation member which has an isolation surface, an isolating body, and an... | 07/17/2007 |
| 7228803 | Guide assembly for guide rail comprising pair of angled guide wheels The flanged type guide wheel (1) or (2) has a peripheral edge (27) which has within its profile a recess (30), for example, a notch, the shape and position of which maintain the surface cover (28) of the guide wheel at a distance f... | 06/12/2007 |
| 7227717 | Asymmetric disk surface properties in one head disk drives A disk drive for storing data includes a drive housing and an asymmetrical storage disk. The storage disk includes a body region, a first side region, and an opposed second side region. The side regions are asymmetrical relative to the body region. Various structure... | 06/05/2007 |
| 7159772 | Apparatus and method for mounting an RF tag on a conveyor trolley A system for mounting an RF tag to a conveyor trolley wherein the tag is embedded in a block of material shaped to fit within an annular recess formed between the hub and outer rim of the trolley wheel. The shaped block is secured to the wheel. ... | 01/09/2007 |
| 7137675 | Road wheel for tracked vehicles A hollow-shell road wheel for tracked vehicles includes a generally triangular, outer circumferential cavity formed by an outer rim and two wall members that extend radially inward at angles to a generally planar flange at approximately the mid-radius point of the h... | 11/21/2006 |
| 7125048 | Dampener A vibration dampener for a vehicle to militate against vibration which results in undesirable noise. In an embodiment, the dampener is used in a steering column in the vehicle to militate against the vibration being transmitted to the hands of a driver during operat... | 10/24/2006 |
| 7103937 | Axle positioning structure An axle positioning structure includes a sleeve, a shaft, and an elastomer. The sleeve includes a bottom and an inner wall. The bottom and the inner wall form a receiving space. The shaft is rotatably coupled to the sleeve. The first end of the shaft goes through th... | 09/12/2006 |
| 7044276 | Dynamic damper and propeller shaft This invention provides a dynamic damper comprising an outer pipe 20, a weight 30 and an elastic body 40, wherein convex portions 21 protruded in the direction of the inside diameter are provided at plural positions along the circumferent... | 05/16/2006 |
| 7044179 | Elastic wheel An elastic wheel includes a disk (1) secured to an axle hub, a rim (12) for mounting a tire, and an elastic member (10) arranged between the inner peripheral surface of the rim (12) and the outer peripheral surface of the disk (1).... | 05/16/2006 |
| 6981535 | Elastic wheel An elastic wheel includes a disk (1) having a base rim (2), a rim (3) for supporting a tire (10), and an annular elastic rubber body (4) arranged between the outer peripheral surface of the base rim (2) and the inner periphe... | 01/03/2006 |
| 6948781 | Balance weight assembly The present invention relates to a balance weight assembly for a vehicle wheel, including a portion designed to attach and fix the balance weight to the flange edge of a wheel rim and a portion designed to retain a weight made from a high-density material, such as t... | 09/27/2005 |
| 6550868 | Damper plate for automobile wheel A damper plate for an automobile wheel by which ride comfort and interior noise characteristics are improved without seriously deteriorating driving stability or unfastening nuts. The damper plate has a structure in which a metal plate and a buffer member... | 04/22/2003 |
| 6488324 | Railway vehicle wheel with improved damping characteristics A railway vehicle wheel always improve damping characteristics when a thin visco-elastic layer is placed between the tire and the connecting disc or ring. The visco-elastic layer improves damping through shearing action and has a thickness that is lower t... | 12/03/2002 |
| 6390563 | Sound reducing wheel rim A wheel rim (1) with a circumferential surface (4) has a tire that can be mounted thereon. A sound-absorbing material (6) rests on the wheel rim (1) and is arranged underneath a surface-forming structure (8) extends transversely over the entire width of t... | 05/21/2002 |
| 6343843 | Pneumatic tire and wheel rim A pneumatic tire, a wheel rim, and an assembly of a pneumatic tire and a wheel rim, which are provided with lawn-like materials for damping air resonance of the tire cavity are disclosed. An assembly of a pneumatic tire and a wheel rim where a foaming age... | 02/05/2002 |
| 6312033 | Resilient wheel for rail vehicles The invention relates to a resilient, multi-component wheel for rail vehicles, comprising a rim (2) and hub (11) as well as an elastic element (6, 8) removably inserted between said rim and hub. Said elastic element (6, 8) is configured as a concentric, s... | 11/06/2001 |
| 6106075 | Road wheel with improved vibration characteristics and method of constructing and utilizing same An automotive road wheel with improved vibration characteristics comprises a wheel body, and at least one pocket defined in the wheel body for altering a resonant frequency of vibrations of the wheel body. The wheel body is preferably formed of aluminum o... | 08/22/2000 |
| 6074015 | Sound absorbing wheel A rim and disk type wheel which is mechanically reinforced to raise the fuencies of several of the vibration modes of the wheel to attenuate the running noises heard in the passenger space.... | 06/13/2000 |
| 5873617 | Noise damping system on railroad wheels A noise damping system for a railroad wheel: at one axial side of the wheel a groove is formed having radially inward and radially outward sides. A ring is installed in the groove. When one set of opposing sides, e.g. the radially outward sides, is engage... | 02/23/1999 |
| 5734133 | Muffler for structure-borne noise of running wheels A muffler for structure-borne noise of running wheels of different diameters and/or different frequency spectrums of structure-borne sound vibrations has vibration absorbing elements in the form of members which are arranged next to one another in the cir... | 03/31/1998 |
| 5702141 | Polyblock railway wheel Polyblock railway wheel of the type comprising a rim (1), a center part (2) constituted by a hub (22) and a web (6), a damper (5) disposed between the center part (2) and the rim (1), at least one flange (3), and fasteners (7) for fixing the at least one ... | 12/30/1997 |
| 5527079 | Method for determining the outline of the axial section of a wheel and wheel made thereby In order to obtain, in service, a reduced acoustic emission, the position of the true point of contact (P) of the wheel with the rail is determined, the distribution of the masses of the section of the rim and of the wheel center of the wheel is adjusted ... | 06/18/1996 |
| 5468055 | Device for attenuating the rolling noise of vehicles Device for attenuating the rolling noise of vehicles, mounted on a component (3) connected to the wheel. The device includes an annular mass (5) coaxial with the wheel shaft (2) and several actuators of the automatically-controlled linear motor type (6 to... | 11/21/1995 |
| 5456183 | Integrated infrastructure transit system A transit system is provided for application within existing routes of travel infrastructures, travelling along the median strip and utilizing the air space over the median strip and above limited height roadway traffic and beneath overpasses and height l... | 10/10/1995 |
| 5415063 | Rotatable machine component with device for reducing acoustic vibrations A rotatable machine component with a ring of resilient material secured to it in the vicinity of at least one axially projecting collar. The collar has a continuous annular groove around it that cuts into its contour radially, and the ring is secured in t... | 05/16/1995 |
| 5386894 | Vibration damping device In a vibration-damping device, viscoelastic material which dissipates vibration energy is bonded to a supporting member so as to form a removable unitary assembly which can be coupled to the vibration emitter, the viscoelastic material being clamped betwe... | 02/07/1995 |
| 5207489 | Noise reduction apparatus for a track system of an off-highway implement A noise attenuating assembly for reducing noise levels caused by an endless track assembly during operation of an off-highway implement such as a crawler tractor. The noise attenuating assembly comprises an annular elastomeric ring affixed about an idler ... | 05/04/1993 |
| 5183306 | Rail vehicle wheel A rail vehicle wheel comprises a wheel center (1), a flanged tire (2), a rubber ring (3) between the wheel center and the tire, and a pressure ring (4). The rubber ring consists of an annular, axial body (3') and at each side thereof a flange (3"), which ... | 02/02/1993 |
| 5092192 | Sound attenuation in wheels A device for attenuating sound in and of wheels, the wheel having a rim portion, a hub, and a web in between, there being a radially inwardly oriented flange surface, is improved by an attenuating layer on or in a groove of the flange surface, possibly wi... | 03/03/1992 |
| 5022718 | Idler wheel assembly An idler wheel assembly for supporting and guiding an endless track chain assembly of a track-type vehicle includes a spoked idler wheel having a plurality of aligned apertures through the sidewalls. A resilient plug assembly is contained within each set ... | 06/11/1991 |
| 4970909 | Sound attenuation in wheels A device for attenuating sound in and of wheels, the wheel having a rim portion, a hub, and a web in between, there being a radially inwardly oriented flange surface, is improved by an attenuating layer on or in a groove of the flange surface, possibly wi... | 11/20/1990 |
| 4890892 | Track roller assembly A track roller assembly supports and guides a portion of the endless track of a track type vehicle as that portion of the track travels between a drive wheel and an idler wheel of the vehicle. The rim portions of the roller assembly include a plurality of... | 01/02/1990 |
| 4818041 | Idler wheel assembly for track-type vehicle An idler wheel assembly for a track-type vehicle has a hub member and a plurality of replaceable wear segments positioned around the circumference of the hub. A plurality of U-shaped grooves in the circumferential surface of the hub receive resilient mean... | 04/04/1989 |
| 4699417 | Disk wheel, especially railroad wheel A disk wheel, especially a railroad wheel, has a composite construction of single piece metal hub and a single piece metal rim connected to each other by a wheel disk of fiber reinforced composite material providing exclusively adhesive bonds. The wheel d... | 10/13/1987 |
| 4635990 | Resilient wheel of a railway car A resilient wheel of a railway car includes a hub (1) with an annular projection (2) on the outer surface thereof, and a pressure disk (8), the hub and the disk being connected by bracing elements (7), and having ventilation ports (3, 9). An inner rim (4)... | 01/13/1987 |
| 4496183 | Vibration-damped wheel for rail vehicles A rail wheel has in one of its rim surfaces, preferably the inner one, a circumferential undercut groove. Vibration-damping elements are connected to the wheel by means of screws which either engage in the undercut groove via appropriately shaped heads, o... | 01/29/1985 |
| 4458966 | Earth-connector for a rubber-cushioned rail vehicle wheel A conductor provides electrical connection passing through a rubber cushioned rail vehicle wheel having rubber elements in between a central metal wheel portion and an outer flanged metal wheel tire. Thus, a length of wire has a central conductor connecti... | 07/10/1984 |
| 4431227 | Railway friction wheel Method and device for enhancing the adhesion qualities of vehicle wheels through the use of a plurality of embedded members having exposed high frictional surfaces, which are capable of automatically being caused to attain frictional contact with a wheel ... | 02/14/1984 |
| 4399851 | Wheel tire with noise absorbing means The running characteristics of a tire for a wheel are improved to provide a more quiet run, by attaching to an inner and/or outer surface of the tire vibration absorbing elements. Vibration absorbing elements may even be inserted into the tire material it... | 08/23/1983 |
