COUPLINGS SPECIALLY ADAPTED FOR RAILWAY VEHICLES; DRAUGHT OR BUFFING APPLIANCES SPECIALLY ADAPTED FOR RAILWAY VEHICLES

Introduced: September 1968

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: RAILWAYS
Subclass:: COUPLINGS SPECIALLY ADAPTED FOR RAILWAY VEHICLES; DRAUGHT OR BUFFING APPLIANCES SPECIALLY ADAPTED FOR RAILWAY VEHICLES

Description

B61G covers mechanical couplings and shock-absorbing devices specifically designed for joining and cushioning impacts between railway vehicles and train sets. This includes coupler heads, drawbars, buffer systems, and associated hardware that facilitate train formation while mitigating longitudinal forces during acceleration, braking, and coupling operations. The classification extends to both automatic and manual coupling mechanisms as well as the structural components that transmit draft and buffering forces between adjacent vehicles.

Related Keywords

vehicle traction COUPLING(S) peculiar to rail vehiclesRAILWAY(S),RAILROAD(S) vehicle draught or buffing gearconnections peculiar to railway VEHICLES

6 direct subcodes

Child Classifications

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B61G 1/00 Couplings comprising interengaging parts of different shape or form and having links, bars, pins, shackles, or hooks as coupling means
B61G 11/00 Buffers
B61G 3/00 Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
B61G 5/00 Couplings not otherwise provided for
B61G 7/00 Details or accessories
B61G 9/00 Draw-gear

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