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Class 267/3 - Railway


Subclass of Class 267 - Spring devices
Definition: Spring devices especially adapted for railway rolling-stock
No. of patents: 68
Last issue date: 03/04/2008


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NumberTitleIssue Date
7338034Elastomeric spring
An elastomeric spring including an elongated elastomeric body defining a longitudinal axis for the spring and having first and second longitudinal ends. An outer surface of the elastomeric body extends between the first and second ends and has four generally planar ...
03/04/2008
7178794Fluid isolator assembly and floating elastomeric damping element
An isolator apparatus is described to attenuate or isolate vibration. The isolator apparatus includes a fluid isolator assembly including a flexible diaphragm and a pressure chamber having a flow passage opened to the pressure chamber to provide a fluid spring. A fl...
02/20/2007
7121212Ride control constant contact side bearing arrangement
A long travel constant contact side bearing for railway cars provides better handling characteristics, achieving improved tracking and curving through use of various combinations of features. Such a long travel side bearing is able to meet recent stringent American ...
10/17/2006
7083165Side bearing pad
In a side bearing pad assembly two housings are provided, each having a bore of such size and orientation that the housings slide telescopically one within the other. When assembled the bores constitute a single internal cavity which houses resilient members. Each h...
08/01/2006
7044457Mount with replaceable load bearing and rebound members
A mount with replaceable load bearing and rebound members is provided. The mount comprises a housing that defines a first chamber and a second chamber; a load bearing member removably located in said first chamber, said load bearing member comprising a load bearing ...
05/16/2006
6688236Friction wedge design optimized for high warp friction moment and low damping force
A damping system for a rail car truck utilizes friction wedges supported on side springs to damp relative movement between the rail car truck bolster and the side frames supporting it. Each friction wedge has a generally triangular shape with an angle θ ...
02/10/2004
6581527Adjustable side bearing for a railcar
A side bearing for a railcar having a car body and a bolster. The side bearing includes a top member adapted to be located adjacent the car body of the railcar. The top member includes a downwardly extending projection. The side bearing also includes a ba...
06/24/2003
6560002Optical switch
An optical switch that any vibration or oscillation transmitted to the optical switch from the outside is substantially prevented from being transmitted to a movable electrode is provided. In an optical switch comprising: a stationary electrode; a movable...
05/06/2003
6341422Method of manufacturing a railroad car apparatus
The present invention discloses a method for manufacturing an energy absorption apparatus including an elastomeric spring for a railroad car. The method involves the step of creating a predetermined wear condition in the elastomeric spring for the energy ...
01/29/2002
6269752Friction wedge design optimized for high warp friction moment and low damping force
A damping system for a rail car truck utilizes friction wedges supported on side springs to damp relative movement between the rail car truck bolster and the side frames supporting it. Each friction wedge has a generally triangular shape with an angle θ ...
08/07/2001
5810337Suspension isolating device
An improved device for isolating a vehicle frame from an axle assembly is provided. This device is characterized such that deflection caused by road shock is severely limited when the vehicle is in a loaded condition and substantially higher when the vehi...
09/22/1998
5601031Constant contact side bearing
An improved side bearing for installation between a railcar body and the bolster of the railcar track, said side bearing having an open cylindrical housing with a mounting plate, a top cap for vertically reciprocating within said cylindrical housing and a...
02/11/1997
5560589Active vibration damping arrangement for transportation vehicles
An active vibration damping arrangement which is adapted to improve passenger ride comfort in various types and categories of transport vehicles; especially such as, but not limited to railroads, buses, automotive devices, maglev (magnetic levitation) veh...
10/01/1996
5039071Running gear of a railway vehicle
Running gear (1) of a railway vehicle, which is suspended on the undercarriage (2) of the railway vehicel by blade support springs (3) and suspension attachment (8), with the additional arrangement of an additional blade spring as absorption spring (12); ...
08/13/1991
4998997Side bearing unit for railroad car
A top cap and housing cooperate to create an internal void wherein is located two elastomeric springs, one on top of the other. Two different solid stop systems are incorporated into the top and housing. An interlocking system also movably secures the top...
03/12/1991
4936226Railway truck snubber
A hydraulic snubber device and more particularly, a snubber adapted to be interposed in the spring group between a bolster and a side frame member and having a single primary operating cartridge which is selectively usable with a plurality of differing co...
06/26/1990
4841875Suspension arrangement for rail vehicles
A suspension arrangement for rail vehicles, including at least one pair of superimposed elastomeric shock absorbers, including a first shock absorber disposed between a first mandrel and a first bell-shaped member, and a second shock absorber disposed bet...
06/27/1989
4773334Composite fiber truck for a track vehicle having torsion-elastic central plate member
In order to achieve in a truck for a track vehicle with an H-shaped truck frame which consists of a composite fiber structure serving the function of a primary spring, with two longitudinal beams connected to each other via transverse beams, a distributio...
09/27/1988
4742779Bogie with swiveling axles
A bogie with swiveling axles for pivotable mounting under the body of a rail vehicle of the metro or tram type having a bogie chassis (1) carried by two axles (2) provided with axle boxes (3) and capable of being swiveled by an articulated system moved by...
05/10/1988
4715289Apparatus for controlling vibration of vehicle
This invention relates to a superior suppressing of vibration in a car body when a vehicle runs on a straight railroad and a curvilinear railroad. The invention is comprised of a fluid pressure-acting mechanism arranged between the car body and the truck ...
12/29/1987
4715290Hunting control side bearing
A side bearing for railway cars mounted horizontally between truck and body bolsters to provide frictional engagement in a substantially vertical plane and having an elastomeric member to accommodate lateral movements. The elastomeric member is a resilien...
12/29/1987
4712487Side bearing unit for railroad car, including method of making
A side bearing unit for attachment to a bolster of a truck of a railroad car has a base which may be fastened to a top wall of the bolster. A housing, carried by the base, includes spaced sidewalls joined by end walls to define a cavity for an elastomeric...
12/15/1987
4697526Articulation system for articulated depressed-floor tramway carriages
The articulation system relates to articulated tramway carriages comprising at least two bodies, the opposing ends of which are connected together in an articulated manner in order to maintain substantial continuity of the walking surface, and are support...
10/06/1987
4690069Suspension for axle control with empty car spring
Spring suspensions for the sprung mass of railway cars are disclosed and which provide torque arm support of both empty and loaded cars and control of axle movement, as in curving by hinging the outer ends of radial torque arms in support of the sprung ma...
09/01/1987
4589347Elastomeric mountings
An elastomeric mounting comprises a plurality of elastomeric layers having a plurality of reinforcement layers interleaved between and bonded to the elastomeric layers wherein confronting surfaces of the reinforcement layers are of corrugated profile havi...
05/20/1986
4574707Convertible highway railroad vehicle
A cargo body with a rubber tired truck permanently connected to its rear end, is propelled along the highway by any conventional highway tractor. For rail service the highway truck is cradeled in a railroad wheeled truck and the front end of each cargo bo...
03/11/1986
4567833Composite constant contact side bearing for railroad cars
A composite constant contact side bearing for railroad cars that comprises a body, that may be either cage mounted or free mounted, having a top wall that supports the car body bolster, a bottom wall structure that is to be supported by the truck bolster,...
02/04/1986
4506868Shock absorber for vehicular couplers
Herein disclosed is a shock absorber which is to be used with a vehicular coupler. The shock absorber includes a shock absorbing frame which has a pair of shoulders. Further inclusive are a pair of follower plates which are adapted to be held to abut agai...
03/26/1985
4505457Railway truck spring height adjustment device
A height adjusting device for the truck of a railroad vehicle including spring retainer supporting members consisting of a plurality of concentric segments which are arranged around the axis of a spring retainer in symmetry with respect to the axis. Each ...
03/19/1985
4502391Railway track working machine equipped with a device for blocking the suspension of its axles
A railway track working machine is equipped with a device for blocking the suspension of its axles, which device comprises, for each axle box a movable support sliding in a vertical guide fixed to the machine chassis and vertically displaced by a rod of a...
03/05/1985
4487133Primary suspension system for providing low vertical and longitudinal spring rates in a railway cap
A primary suspension spring disposed between a wheel journal and a railway truck side frame includes top and bottom elastomeric members which form a ring around the journal. Both members include a relatively large cut-away portion towards their centers to...
12/11/1984
4469028Primary suspension system for a railway car with vertical and longitudinal compliance
A primary suspension system for a railway car comprises one or more leaf springs configured to provide vertical and horizontal portions for vertical and longitudinal compliance. A portion of the leaf spring is curved to wrap around a portion on the wheel ...
09/04/1984
4458605Railway truck spring height adjustment device
A pair of adjustment plates are disposed below a mechanical spring which supports a car body. At least one of the adjustment plates include spaced stepped portions to engage a portion of the other plate with the stepped portion engaged determining the hei...
07/10/1984
4454932Suspension means for a rail vehicle disc brake unit
Suspension for a rail vehicle disc brake unit (1) comprises a suspension console (11) to be attached to a vehicle bogie or underframe, a cradle (13) movably attached to the console, and suspension links (17, 18) pivotally connecting the brake pad holders ...
06/19/1984
4448131Suspension system for rail vehicles
A suspension system for rail vehicles which have at least two wheelsets hng axles which are supported in a frame and within which a cross member extends parallel to the axles. The cross member is supported in the vehicle frame in a spring-cushioned manne...
05/15/1984
4444122Primary suspension system for a railway car
A primary suspension system is disposed between a journal bearing assembly carrying a wheel-axle assembly and a side frame of a railway truck. A rubber ring having cut-away portions or openings therein is bonded to inner and outer split metal rings. The i...
04/24/1984
4438703Primary suspension system for a railway car
A primary suspension system is disposed between a wheel journal bearing and a side frame of a railway truck to minimize acceleration forces from being transmitted from a wheel axle unit to a car body. A pair of elastomeric members form a ring clamped arou...
03/27/1984
4434720Multi-rate side bearing for a railway truck
A multi-rate side bearing for a railway truck is provided. The side bearing comprises a base plate and an upper plate, with two resilient devices located between the base plate and the upper plate. The resilient devices usually are elastomeric pads of dif...
03/06/1984
4433629Railway truck bearing mounting assembly
The bearing housing of a railway vehicle includes a pair of stop members spaced from respective pedestals of the truck frame and engageable with such pedestals to absorb lateral thrust loads upon relative movement between the bearing housings and truck fr...
02/28/1984
4416203Railway vehicle laminated mount suspension
A laminated mount for a railway vehicle suspension system is provided in which a body of elastomer is disposed between a top and bottom plate, and is divided into a plurality of individual layers by shims embedded at spaced intervals therewithin. Pins ext...
11/22/1983
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