CPC Definition - Subclass B60T
This place covers:
Arrangement of braking elements on vehicles (as defined in the Glossary of terms below).
Portable devices for preventing unwanted movement of vehicles, and especially where the devices are specially adapted to engage an exterior portion of a stationary vehicle to prevent or restrain its movement, e.g. chocks.
Vehicle modifications to facilitate cooling of brakes.
Control systems or parts thereof, in general or specially adapted for vehicles, for processing variables which influence the extent or duration of a braking event, for the following purposes:
- for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force;
- for continuous braking making use of fluid or powdered medium, e.g. when descending a long slope;
- for transmitting braking action from initiating means to ultimate brake actuator.
Component parts, details or accessories of brake control systems, for example:
- brake-action initiating means, e.g. manually or automatically-operated;
- construction, arrangement or operation of valves incorporated in power brake systems;
Component parts, details or accessories presenting other characteristic features, e.g. arrangements of pumps or compressors, brake cylinders other than ultimate actuators, safety or monitoring devices.
B61H covers brakes or other retarding apparatus peculiar to rail vehicles, and arrangement or disposition of brakes or other retarding apparatus in rail vehicles, but the following aspects thereof in relation to rail vehicles are covered in B60T:
- Arrangements in rail vehicles for adjusting wheel-braking force to meet varying vehicular or permanent way conditions see B60T 8/00;
- Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive, brake systems incorporating such transmitting means, e.g. air-pressure brake systems see B60T 13/00;
- Construction, arrangement or operation of valves incorporated in power brake systems see B60T 15/00. (B60T 15/00);
- Component parts, details or accessories of brake systems.
This place does not cover:
Electrodynamic brake systems and control thereof for vehicles, and in general | |
Conjoint control of brakes and other drive units of vehicles, such as engine, gearing or clutch (this may be particularly significant when traction control systems operating on more than just brakes are being classified) | |
Brakes or other retarding apparatus peculiar to rail vehicles; Arrangement or disposition of brakes or other retarding apparatus in rail vehicles | |
Arrangement of braking elements on cycles | |
Arrangement of braking elements on aircraft | |
Weighing of vehicles | |
Weighing in vehicles | |
Testing of braking systems or brakes | |
Dynamo-electric brakes |
Attention is drawn to the following places, which may be of interest for search:
Railway stops, track brakes or retarding apparatus, fixed to permanent way | |
Braking devices for cranes, lift hoists, etc. | |
Braking devices for fork lift trucks | |
Safety arrangements on roads for slowing, redirecting or stopping errant vehicles, e.g. guard posts, bollards | |
Pumps | |
Hydraulic systems | |
Brakes themselves, i.e. the devices where the braking effect actually occurs, and actuators directly acting on those devices | |
Valves | |
Foot actuated controlling members | |
Traffic control systems for road vehicles |
In group B60T 8/00, when the subject matter to be classified is characterised by both electronic and non-electronic aspects, multiple classification should be applied, i.e. it should be classified both in group B60T 8/17 or its subgroups, and in groups B60T 8/18, B60T 8/24, B60T 8/26 or B60T 8/32 or their subgroups.
In this place, the following terms or expressions are used with the meaning indicated:
boosters | means for providing power assistance to the braking effort |
vehicle | This term can have two different meanings here, viz. (1) all vehicles except those restricted to one of the following types of vehicles: rail vehicles, waterborne vessels, aircraft, space vehicles, hand carts, cycles, animal-drawn vehicles, and sledges, which are covered by the relevant subclasses of B61 - B64. The term "vehicle" also includes (i) vehicular characteristics which are common to more than one of the above-listed types, and (ii) certain characteristics restricted to automobiles, road or cross-country trailers.(2) In some instances in this definition, the term "vehicle" has been qualified by another word which takes its meaning outside the scope of (1) above (e.g. "rail vehicle"), in which case the word "vehicle" takes its normal dictionary meaning. The reader can determine from the context whether an occurrence of the word "vehicle" in this definition falls within the meaning stated in (1) or (2). |
In patent documents, the following abbreviations are often used:
ABS | Anti-lock Braking System |
ASR | Anti-Spin Regulation |
EBA | Electronic Brake Assist |
BA | Braking Assistant |
EBD, EBKV | Electronic Brakeforce Distribution |
TC, TCS | Traction control |
FDR, FSR, ESP | Electronic Stability Control |
EHB | Electro-Hydraulic Braking System |
EBS | Electronic Braking Systems |
BBW | Brake by wire |
ACC | Automatic cruise control |
In patent documents, the following words/expressions are often used as synonyms:
- "Wheel slip", "wheel-slip", "wheel spin" and "wheel-spin"
- "Traction control" and "ASR (Anti-Spin Regulation) – for combating wheel-spin"
- "Automatic cruise control" and "automatic distance control"
- "Interlocking brake control", "integral braking" and "CBC (for motor cycles)"
- "Antilock", "anti-lock", "anti-skid", "antiskid" and "anti-blocking"
This place covers:
Arrangements of braking elements; braking by positive locking, retarding wheels or otherwise.
This place does not cover:
Railway vehicle braking elements | |
Air resistance braking of aircraft | |
Exhaust brakes | |
Braking elements per se | |
Positive locking in transmissions |
Attention is drawn to the following places, which may be of interest for search:
Control of retarders | |
Combinations of different braking elements or brake types | |
Regenerative braking | |
Positive locking brakes |
This place covers:
Portable wheel chocks, wedges.
This place does not cover:
Chocks on vehicle carrying vehicles | |
Restricting vehicle movement at loading stations |
This place covers:
For example air flow guiding elements, air ducts.
This place does not cover:
Spoilers per se | |
Ventilated discs or drums of braking elements | |
Collecting brake dust |
This place covers:
Brake-action initiating means, hand- and foot actuated brake initiating means;
Automatic initiation of braking systems, also for trailers.
Attention is drawn to the following places, which may be of interest for search:
Hill-Holding | |
ACC | |
Trailer braking systems | |
Overrun brakes | |
Hand- or foot actuated brake-action initiating means in pneumatic braking systems | |
Hand- or foot actuated controlling members in general |
This place covers:
- Load dependent braking systems and parts thereof
- Braking systems that produce differential braking pressures on either side of the vehicle or between front and rear wheels of the vehicle and parts thereof,
- Speed responsive braking systems (like ABS, ASR, ESP, BA) and parts thereof, and
- Systems using electrical or electronic regulation means to control the braking.
Reference is made to the special rules of classification as defined under B60T
This place covers:
Electric or electronic regulation means to control:
- Load dependent braking systems,
- Braking systems that produce differential braking pressures on either side of the vehicle or between front and rear wheels of the vehicle
- Speed responsive braking systems (like ABS, ASR, ESP, BA).
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Conjoint control |
Attention is drawn to the following places, which may be of interest for search:
ABS vehicle reference speed | |
Friction condition (road/tire) |
This place covers:
Braking systems and parts thereof responsive to vehicle weight or load, especially for vehicle having more than two axles or braking systems wherein producing a differential braking between front and rear or left and right wheels is irrelevant.
This place covers:
Braking systems or parts thereof producing differential brake forces (left/right) according to roll of vehicle or wile negotiating bends or to avoid trailer sway and braking systems and parts thereof producing differential brake forces (left/right and/or front/rear) when the vehicle is on a slope.
This place does not cover:
ESP |
Attention is drawn to the following places, which may be of interest for search:
Trailer braking systems |
This place covers:
Braking systems and parts thereof for producing differential braking forces between the front and rear wheel(s) (or axles) of the vehicle.
Pressure, deceleration and load responsive systems and parts thereof.
Attention is drawn to the following places, which may be of interest for search:
Motor cycle braking systems |
This place covers:
Subject matter wherein the braking action is adjusted or controlled in accordance with a signal relating to velocity. A speed condition can be, for example, a velocity signal from one or more plural wheels, or a velocity signal from a moving object or a vehicle body.
This place does not cover:
Attention is drawn to the following places, which may be of interest for search:
Braking systems with Hill-Hold function | |
Braking systems with ACC | |
Braking systems in which the brake elements are used for drying or reducing vibrations | |
Systems combined with brake locking means | |
Systems specially adapted for a particular kind of vehicle | |
BBW | |
EBS | |
BA | |
Speed sensor arrangement | |
Filling and bleeding | |
Non-electrically controlled valves | |
Lay out of the braking system | |
Electric control of the valve itself | |
Electrically controlled valves | |
Electrically controlled valves incorporated in control units | |
Specially adapted master cylinders for ABS, ASR etc. | |
Pumps | |
Pump control | |
Fluid damping aspects | |
EHB | |
Speed sensing by means of wheel driven pumps | |
ABS using volume expansion units (debooster systems) | |
Pump-back type (closed) ABS | |
Booster aspects | |
Open ABS | |
Booster used for ABS | |
Air over hydraulic braking systems | |
Automatic braking systems for all kinds of functions not initiated by the driver or rider | |
ABS with controlled pressure increase and decrease rate | |
Mechanical ABS systems | |
Means for changing the friction coefficient | |
Systems with torque sensing | |
Fly wheel type ABS | |
Response to failure | |
Diagnosing |
This place covers:
Hydrostatically and hydrodynamically controlled retarders.
This place does not cover:
Electric retarders, regenerative baking systems | |
Liquid-resistance brakes |
Attention is drawn to the following places, which may be of interest for search:
Regenerative non-electric brakes | |
Combination of friction brakes and electric retarders | |
Energy recovery in soil-shifting machines |
This place covers:
Mechanical, e.g. by means of cables, and fluid transmission of braking force to the braking elements. Master cylinders; Reservoirs; Valves.
This place does not cover:
Slip, spin or stability control (ABS, ASR, ESP etc.) |
Attention is drawn to the following places, which may be of interest for search:
Trailer braking systems | |
Proportioning valves | |
Producing different pressures in different brake circuits | |
Master cylinders especially adapted for ABS | |
Overrun brakes | |
Master Cylinders for single track vehicles | |
Master Cylinders for clutches | |
Valves in general | |
Pipes or hoses per se |
This place covers:
Mechanically, electrically and/or fluidly assisted transmission or generation of braking force to the braking elements. Brake boosters.
This place does not cover:
Slip, spin or stability control (ABS, ASR, ESP etc.) |
Attention is drawn to the following places, which may be of interest for search:
Electric parking brake systems | |
Electrical control of boosters for ABS, ASR, BA etc. | |
Electric regenerative or resistance braking systems | |
Rope, cable, or chain winding mechanisms | |
Electric-mechanical braking elements per se |
This place covers:
Application and release valves, driver's valves, relay valves and arrangement or operation thereof
Attention is drawn to the following places, which may be of interest for search:
Valves for ABS, ASR, ESP etc. | |
Bleed valves | |
Valves per se |
This place covers:
Air treatment devices;
Arrangements of pumps, compressors, piping and reservoirs;
Braking elements not directly acting on the friction material carry parts;
Safety devices;
Filling and bleeding; tools therefor.
Attention is drawn to the following places, which may be of interest for search:
Bleeding of ABS, ASR, ESP etc. | |
Arrangement of components in ABS/ASR units | |
Mounting of ABS/ASR units in or onto the vehicle | |
Failure responsive means or control in ABS or the like | |
Master Cylinder Reservoirs | |
Glad-Hands | |
Brake cylinders | B60T 17/08, F16D65/14B10 |
Braking system with monotoring of pressure differences between two circuits | |
Details of desiccator beds | |
Gas drying by absorption | |
Train braking systems | |
Braking systems for single track vehicles |
Documents should be classified in B60T 8/00, B60T 13/00 or B60T 15/00 first; if there are further aspects in the documents to be classified, for which there is no classification possibility available in the above groups, further classification is done in B60T 17/00.
In this place, the following terms or expressions are used with the meaning indicated:
Monitoring | in use |
Checking | stationary; in factory or workshop |