B61H BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
Introduced: September 1968
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- RAILWAYS
- Subclass:
- BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
Description
B61H covers braking and retarding systems engineered specifically for railway applications, including their mechanical, pneumatic, hydraulic, and electrical designs as integrated into rail vehicle architectures. This classification encompasses brake types such as disc brakes, drum brakes, regenerative brakes, and friction-based retarding devices, along with their control systems and activation mechanisms adapted to rail operating conditions. It includes the spatial arrangement, mounting, and integration of brake components within rail vehicles to optimize safety, performance, and maintainability. B61H excludes general brake technology applicable across multiple transportation modes (covered in F16P) and focuses specifically on solutions tailored to the unique requirements of trains and other rail-bound vehicles.
Additional Content
Arrangements in rail vehicles for adjusting wheel-braking force to meet varying vehicular or permanent-way conditions 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 Construction, arrangement or operation of valves incorporated in power brake systems Component parts, details or accessories of brake systems
Related Keywords
8 direct subcodes
Child Classifications
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- B61H 1/00 Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum or the like
- B61H 11/00 Applications or arrangements of braking or retarding apparatus not otherwise provided for; Combinations of apparatus of different kinds or types
- B61H 13/00 Actuating rail-vehicle brakes
- B61H 15/00 Wear-compensating mechanisms, e.g. slack adjusters
- B61H 3/00 Applications or arrangements of brakes with an outwardly-movable braking member or members co-operating with the inner surface of a drum or the like
- B61H 5/00 Applications or arrangements of brakes with substantially radial braking surfaces pressed together in axial direction, e.g. disc brakes
- B61H 7/00 Brakes with braking members co-operating with the track
- B61H 9/00 Brakes characterised by, or modified for, their application to special railway systems or purposes
Top Applicants
Top 10 applicants by patent filingsfor class B61, 2013–2023, worldwide · Source: EPO PATSTAT
- SIEMENS MOBILITY DE 2,749
- CRRC QINGDAO SIFANG COMPANY 2,215
- SIEMENS DE 1,941
- ALSTOM TRANSPORT TECHNOLOGIES FR 1,514
- BYD COMPANY 1,371
- CRRC CHANGCHUN RAILWAY VEHICLES COMPANY 1,205
- CRRC ZHUZHOU LOCOMOTIVE COMPANY 1,165
- CRRC TANGSHAN COMPANY 1,119
- BOMBARDIER TRANSPORTATION DE 1,001
- SOUTHWEST JIAOTONG UNIVERSITY 958