B66B ELEVATORS; ESCALATORS OR MOVING WALKWAYS ( ; funicular railbound systems with rigid ground-supported tracks and cable traction, e.g. cliff railways, B61B9/00; arrangements of ammunition handlers in vessels B63G3/00; hoists, lifts, or conveyors for loading or unloading in general B65G; braking or detent devices controlling normal movements of winding drums or barrels B66D; ship-lifting devices E02C; garages for many vehicles with mechanical means for lifting vehicles E04H6/12; hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms F41A9/00)
Description
B66B covers elevators, escalators, and moving walkways—mechanical systems for vertical or horizontal transport of persons and goods in buildings and public spaces. This subclass includes structural components (cars, cabins, counterweights, guide rails), driving mechanisms (motors, pulley systems, ropes, chains), safety devices (brakes, buffers, door interlocks), and control systems (electrical controls, sensors, emergency features). Also encompassed are escalators with moving steps and inclined or horizontal moving walkways for passenger conveyance. Related technologies for lift mechanisms in other contexts (e.g., vehicle lifts, industrial hoists) are classified separately under B66C and related subclasses.
18 direct subcodes
Child Classifications
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- B66B 1/00 Control systems of elevators in general (safety devices B66B5/00; controlling door or gate operation B66B13/00; systems of general application G05)
- B66B 11/00 Main component parts of lifts in, or associated with, buildings or other structures
- B66B 13/00 Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05)
- B66B 15/00 Main component parts of mining-hoist winding devices
- B66B 17/00 Hoistway equipment
- B66B 19/00 Mining-hoist operation
- B66B 20/00 Elevators not provided for in groups B66B1/00 - B66B19/00
- B66B 21/00 Kinds or types of escalators or moving walkways
- B66B 2201/00 Aspects of control systems of elevators
- B66B 23/00 Component parts of escalators or moving walkways
- B66B 25/00 Control of escalators or moving walkways (walkways of variable speed type B66B21/12; handrails of variable speed type B66B23/26; of general application G05)
- B66B 27/00 Indicating operating conditions of escalators or moving walkways (of general application G08)
- B66B 29/00 Safety devices of escalators or moving walkways (walkways of variable speed type B66B21/12; handrails of variable speed type B66B23/26)
- B66B 3/00 Applications of devices for indicating or signalling operating conditions of elevators
- B66B 31/00 Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning (for safety B66B29/00)
- B66B 5/00 Applications of checking, fault-correcting, or safety devices in elevators
- B66B 7/00 Other common features of elevators
- B66B 9/00 Kinds or types of lifts in, or associated with, buildings or other structures (characterised by control systems B66B1/00; apparatus for raising or lowering persons on stages of theatres A63J5/12)
Top Applicants
Top 10 applicants by patent filingsfor class B66, 2013–2023, worldwide · Source: EPO PATSTAT
- INVENTIO CH 3,939
- OTIS ELEVATOR COMPANY US 3,810
- KONE CORPORATION FI 3,008
- MITSUBISHI ELECTRIC CORPORATION JP 2,333
- MITSUBISHI ELECTRIC CORPORATION 1,254
- HITACHI 1,195
- OTIS ELEVATOR COMPANY 1,065
- SGCC(STATE GRID CORPORATION OF CHINA) 961
- INVENTIO 828
- CROWN EQUIPMENT CORPORATION US 828