Crane, lift, hoist, or winch brakes operating on drums, barrels, or ropes

Introduced: September 1968

Last revised: January 2006

Full Title

Braking or detent devices characterised by their application to lifting or hoisting gear, e.g. for controlling the lowering of loads > Crane, lift, hoist, or winch brakes operating on drums, barrels, or ropes

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: HOISTING; LIFTING; HAULING
Subclass:: CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS

Related Keywords

brakes for CRANE(S)brakes for hoistsLIFT(S) brakes

6 direct subcodes

Child Classifications

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B66D 5/04 actuated by centrifugal force
B66D 5/06 with radial effect
B66D 5/12 with axial effect
B66D 5/16 for action on ropes or cables
B66D 5/18 for generating braking forces which are proportional to the loads suspended; Load-actuated brakes
B66D 5/24 Operating devices

Top Applicants

Top 10 applicants by patent filingsfor class B66, 2013–2023, worldwide · Source: EPO PATSTAT

INVENTIO CH 3,843
OTIS ELEVATOR COMPANY US 3,709
SGCC(STATE GRID CORPORATION OF CHINA) 2,987
KONE CORPORATION FI 2,922
TOSHIBA ELEVATOR COMPANY 2,922
HITACHI 2,321
MITSUBISHI ELECTRIC CORPORATION JP 2,287
MITSUBISHI ELECTRIC CORPORATION 1,870
HITACHI BUILDING SYSTEMS COMPANY 1,700
ANHUI HELI COMPANY 1,325