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Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES, ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING; WHEEL GUARDS; OBSTRUCTION REMOVERS, OR THE LIKE (for vehicles in general B60; axles, wheels B60B; tyres B60C)
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Underframes (making railway vehicle underframes by forging or pressing B21K 7/12)
B61F 1/02
.
with a single central sill
B61F 1/04
.
of triangulated type
B61F 1/06
.
specially adapted for locomotives or motor-driven railcars
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B61F 1/08
.
Details
B61F 1/10
. .
End constructions
B61F 1/12
. .
Cross bearers
B61F 1/14
. .
Attaching or supporting vehicle body-structure
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Types of bogies (B61F 5/00 takes precedence)
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B61F 3/02
.
with more than one axle
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B61F 3/04
. .
with driven axles or wheels
B61F 3/06
. . .
with three or more axles
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B61F 3/08
. .
without driven axles or wheels
B61F 3/10
. . .
with three or more axles
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B61F 3/12
.
specially modified for carrying adjacent vehicle bodies of articulated trains
B61F 3/125
. .
{
with more than one axle or wheel set
}
B61F 3/14
.
specially modified for reducing air resistance
B61F 3/16
.
with a separate axle for each wheel
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Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
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B61F 5/02
.
Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
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B61F 5/04
. .
Bolster supports or mountings (side bearings B61F 5/14)
B61F 5/06
. . .
incorporating metal springs
B61F 5/08
. . .
incorporating rubber springs
B61F 5/10
. . .
incorporating fluid springs
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B61F 5/12
. . .
incorporating dampers
B61F 5/122
. . . .
{
with friction surfaces
}
B61F 5/125
. . . .
{
with rubber elements (B61F 5/08 takes precedence)
}
B61F 5/127
. . . .
{
with fluid as a damping medium
}
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B61F 5/14
. .
Side bearings
B61F 5/142
. . .
{
made of rubber elements, graphite or the like
}
B61F 5/144
. . .
{
comprising fluid damping devices (B61F 5/146 takes precedence)
}
B61F 5/146
. . .
{
of the oil bath type; Lubrication devices for side bearings
}
B61F 5/148
. . .
{
between bolsterless bogies and underframes (B61F 5/142 - B61F 5/146 take precedence)
}
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B61F 5/16
. .
Centre bearings or other swivel connections between underframes and bolsters or bogies
B61F 5/18
. . .
King-bolts
B61F 5/20
. . .
with springs allowing transverse movements
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B61F 5/22
. .
Guiding of the vehicle underframes with respect to the bogies
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B61F 5/24
. . .
Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
B61F 5/245
. . . .
{
by active damping, i.e. with means to vary the damping characteristics in accordance with track or vehicle induced reactions, especially in high speed mode
}
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B61F 5/26
.
Mounting or securing axle-boxes in vehicle or bogie underframes
B61F 5/28
. .
Axle-boxes integral with, or directly secured to, vehicle or bogie underframes
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B61F 5/30
. .
Axle-boxes mounted for movement under spring control in vehicle or bogie underframes (
{
B61F 5/36 takes precedence over B61F 5/305 - B61F 5/34
}
)
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B61F 5/301
. . .
{
incorporating metal springs
}
B61F 5/302
. . . .
{
Leaf springs
}
B61F 5/304
. . . .
{
Torsion-bar springs
}
B61F 5/305
. . .
{
incorporating rubber springs
}
B61F 5/307
. . .
{
incorporating fluid springs
}
B61F 5/308
. . .
{
incorporating damping devices
}
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B61F 5/32
. . .
Guides, e.g. plates, for axle-boxes
B61F 5/325
. . . .
{
The guiding device including swinging arms or the like to ensure the parallelism of the axles
}
B61F 5/34
. . . .
Wedge mechanisms for adjusting clearance between underframes and axles
B61F 5/36
. . .
Arrangements for equalising or adjusting the load on wheels or springs, e.g. yokes
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B61F 5/38
.
Arrangements or devices for adjusting or allowing self- adjustment of wheel axles or bogies when rounding curves, e.g. sliding axles, swinging axles
B61F 5/383
. .
{
Adjustment controlled by non-mechanical devices, e.g. scanning trackside elements
}
B61F 5/386
. .
{
fluid actuated
}
B61F 5/40
. .
Bogies with side frames mounted for longitudinal relative movements
B61F 5/42
. .
Adjustment controlled by buffer or coupling gear
B61F 5/44
. .
Adjustment controlled by movements of vehicle body
B61F 5/46
. .
Adjustment controlled by a sliding axle under the same vehicle underframe
B61F 5/48
. .
Trailing or leading bogies for locomotives or motor- driven railcars (B61F 5/40 takes precedence)
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B61F 5/50
.
Other details
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B61F 5/52
. .
Bogie frames
B61F 5/523
. . .
{
comprising parts made from fibre-reinforced matrix material
}
B61F 5/526
. . .
{
comprising noise reducing devices
}
Rail vehicles equipped for use on tracks of different width
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Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
B61F 9/005
.
{
by use of non-mechanical means, e.g. acoustic or electromagnetic devices
}
Rail vehicles characterised by rail-engaging elements other than wheels, e.g. balls
Rail vehicles characterised by wheel arrangements, not otherwise provided for
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Axle-boxes (mounting or securing axle-boxes B61F 5/26; lubrication B61F 17/00; bearings in general F16C)
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B61F 15/02
.
with journal bearings
B61F 15/04
. .
for locomotives
B61F 15/06
. .
for cars
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B61F 15/08
. .
the axle being slidable or tiltable in the bearings
B61F 15/10
. . .
and having springs opposing such movements
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B61F 15/12
.
with roller, needle, or ball bearings
B61F 15/14
. .
constructed for taking-up axial pressure
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B61F 15/16
. .
the axle being slidable or tiltable in the bearings
B61F 15/18
. . .
and having springs opposing such movements
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B61F 15/20
.
Details
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B61F 15/22
. .
Sealing means preventing entrance of dust or leakage of oil
B61F 15/24
. . .
preventing oil leakage when vehicle is tilted or inverted
B61F 15/26
. .
Covers; Sealing thereof
B61F 15/28
. .
Axle-boxes modified to ensure electrical conductivity
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Lubrication specially adapted for axle-boxes of rail vehicles (lubrication in general F16N)
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B61F 17/02
.
with oil
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B61F 17/04
. .
Lubrication by stationary devices
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B61F 17/06
. . .
by means of a wick or the like
B61F 17/08
. . . .
Devices for pressing the wick or the like against the rotating axle
B61F 17/10
. . .
by means of an oil bath
B61F 17/12
. . .
by gravity
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B61F 17/14
. .
Rotating lubricating devices
B61F 17/16
. . .
with rings
B61F 17/18
. . .
with chains
B61F 17/20
. . .
with scoops or the like attached to, or coupled with, the axle
B61F 17/22
. . .
with discs, rollers, or belts engaging the axle
B61F 17/24
. .
by built-in lubricating pumps
B61F 17/26
. .
by external feeding means, e.g. pneumatic devices
B61F 17/28
. .
Applications of oil cleaners not otherwise provided for
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B61F 17/30
.
with grease
B61F 17/32
. .
by manually-operated lubricators, e.g. screw cups
B61F 17/34
. .
by automatic means, e.g. with spring action
B61F 17/36
.
with other, e.g. mixed, lubricating agents
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Wheel guards; Bumpers; Obstruction removers or the like (for vehicles in general B60R 19/00)
B61F 19/02
.
Wheel guards
B61F 19/04
.
Bumpers or like collision guards
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B61F 19/06
.
Nets, catchers, or the like for catching obstacles or removing them from the track (mailbag catchers B61K 1/02)
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B61F 19/08
. .
of the drop-down type
B61F 19/10
. . .
automatically operated by engagement with obstacle
Subject matter not provided for in other groups of this subclass
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013