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ELEVATORS; ESCALATORS OR MOVING WALKWAYS ({apparatus for raising or lowering persons on theatrical stages or the like A63J 5/12} ; funicular railbound systems with rigid ground-supported tracks and cable traction, e.g. cliff railways, B61B 9/00 ; arrangements of ammunition handlers in vessels B63G 3/00 ; hoists, lifts, or conveyers 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 E04H 6/12 ; hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms F41A 9/00)
Definition statement
This subclass covers:

Transporting apparatus of the types specified herein for people or discrete loads when used in conjunction with buildings, complexes of buildings, mines, or similar scale manmade structures or natural formations (e.g. caves).

Elevating apparatus (i.e., elevators or lifts) for shifting a discrete load (e.g., person(s), freight), in its entirety, a significant distance (e.g., at least the height of a normal floor of a building) from an entry level (e.g., landing) to a vertically spaced exit level along a shaft. To be proper for this subclass, the elevating apparatus must include:

  • a support surface (e.g., elevator car/lift cage) that underlies the load and to which the load is confined during travel,
  • rigid or semirigid means for contacting and limiting the travel of the load support surface to back and forth travel along its vertically extending shaft (including inclined ways), and
  • drive means (e.g., fluid motors, manually operated cable) for transmitting to the load support surface the force necessary to shift the load between the levels or motion resisting means (e.g., cable linked counterweights) for slowing the travel of the load-supporting surface when moving from a higher load entry level to a lower load exit level.

Conveying apparatus (i.e., an assemblage of elements for moving a load along a predetermined path) for transporting pedestrians (i.e., escalators or moving walkways) from an entrance location to at least one horizontally spaced egress location. To be proper for this subclass, the conveying apparatus must:

  • include an underlying surface, or a series of interlinked underlying surfaces, that is intended to normally support and carry individuals to their egress location,
  • be arranged or constructed either with a structure that specially adapts the conveying apparatus to the transporting of people or to facilitate potential alternative traversal of the surface(s) by the individuals carried thereon utilizing their standard mode of locomotion (e.g., stepping, walking, manually powering their wheelchair) whenever the underlying surface is idle or the pedestrian wishes to supplement their pace of travel over the underlying surface,
  • include rigid or semirigid means for limiting the travel of the supporting surface to a fixed extending path along which individuals are carried when travelling between the horizontally spaced locations, and
  • include drive means (e.g., endless chain) for transmitting to the underlying surface the force necessary to shift people between the horizontally spaced locations.

Components of the elevating or conveying apparatus when:

  • no specific place for the components exists in another subclass and
  • the components are limited to use with the above types of apparatus by a structural modification (e.g., escalator handrails or guards).

Ancillary devices (e.g., elevator call registration systems) for either the elevating or conveying apparatus which are:

  • used exclusively with elevating or conveying apparatus and
  • have their operations influencing or being influenced by the operation of the elevating or conveying apparatus.

Explanatory Notes or Graphics

(1) Note. Examples of special adaptations for escalators or moving walkways that facilitate the transport of pedestrians are:

  • moving steps,
  • conveyors combined with handrails,
  • conveyors having serrated foot engaging surfaces,
  • entrance or exit comb plates,
  • passenger operated control of drive means, or
  • special layouts facilitating walking along conveying apparatus' path.

(2) Note. Elevating or conveying apparatus otherwise proper for the definition which is either specially modified for use with, or combined with, apparatus for doing work on or treating (e.g., machine tools, furnaces) the discrete loads being carried (e.g., tools shaping load during elevation) are covered in appropriate subclasses for this subject matter.

(3) Note. The load support surfaces of elevators or lifts are intended to support their loads only for a short period of time during handling. Surfaces intended to either support an article in a non-use storage location, support a useable machine or tool, or move one portion of a machine or article relative to another portion thereof are covered in appropriate subclasses for this subject matter.

(4) Note. The discrete load transported by the elevating apparatus of this subclass is either

  • a human,
  • an animal or other living creature,
  • an article,
  • unitized bulk material (e.g., cotton bail, ice block), or
  • a group or mix of the above types of loads that is moved as a unit between levels.
References relevant to classification in this subclass
This subclass does not cover:

Life-saving devices used as an alternative to normal egress means (e.g., stairs) during rescue to lower persons in cages, bags, or similar supports from buildings or other structures

Amusement rides (e.g., roundabouts, and Ferris wheels) that are, or may include as a part of their structure, elevating or conveying apparatus

Arrangements of ammunition handlers in military-type sea vessels

Equipment for handling freight or for facilitating passenger embarkation or the like to aircraft

Hoists, lifts, or conveyers for loading or unloading in general

Hoists, lifts, or conveyers for storing articles, individually or in orderly arrangement, in warehouses or magazines

Braking or detent devices controlling normal movements of winding drums or barrels for capstans, hoist, or winches

Lifting or elevating devices for ships

Multi-vehicle garages provided with mechanical means for lifting vehicles

Hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms for weapons

Informative references
Attention is drawn to the following places, which may be of interest for search:

Lifting and lowering devices for moving disabled persons or patients

Hoisting or lowering devices for coffins

Funicular rail-bound systems with rigid ground-supported tracks and cable traction (e.g., cliff railways)

Ski-lift, sleigh-lift, or the like trackless systems with only guided towing cables

Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes

Glossary of terms
In this subclass, the following terms (or expressions) are used with the meaning indicated:

Drive means

means for supplying motive force to an element to be moved which includes both force generating means (e.g., motor) and structural linkage (e.g., gears) needed to transmit the force from the generating means to the element.

Landing

an in situ floor within a structure (e.g., building) (a) that is located adjacent to an elevator shaft or the entrance or egress points of the conveying apparatus' path and (b) to or from which a load (e.g., passenger, cargo, pedestrian) transfers during the charging or discharging of the load-underlying support surface of an elevator or conveying apparatus.

Shaft

a long, narrow, in situ passageway within a structure (e.g., building, ship, mine) which defines the fixed path between the vertically spaced load entrance and exit levels traveled by the load-underlying support surface of an elevator.

dumbwaiter

a very small elevator or lift (e.g., normally the support is too small for a person) for moving housekeeping or food items between floors

Synonyms and Keywords

In patent documents the following words "elevator" and "lift" are often used as synonyms.

In patent documents the following words "shaft", "hoistway" , " hatchway", "well" and" lift well" are often used as synonyms.

Control systems of elevators in general (safety devices B66B 5/00 ; controlling door or gate operation B66B 13/00 ; systems of general application G05)
Definition statement
This group covers:

Apparatus, systems and processes concerned with the control of elevators and mining hoists.

Control systems for manual operation where the movements are under control of a human operator

Automated control systems for a single or a plurality of elevator cars including call assignment systems and methods

Speed control for elevator cars

Position and motion detection of elevator cars

Call input means

Switches and other means used by the elevator controller for controlling the motion of the elevator car that are mounted in the hoistway

References relevant to classification in this group
This group does not cover:

Control of escalators and moving walkways

Control of elevator doors

Monitoring elevator operation

hydraulic
Definition statement
This subgroup covers:

All control systems for hydraulically powered elevators without regulation

Control systems containing hydraulic elements

References relevant to classification in this group
This subgroup does not cover:

Levelling systems for hydraulically driven elevators

with devices, e.g. push-buttons, for indirect control of movements
Definition statement
This subgroup covers:

Control systems where the control is no longer done by a human operator but where the movements of the elevator system are controlled by an electro-mechanical controller that reacts to calls given by the passengers

References relevant to classification in this group
This subgroup does not cover:

Systems especially concerned with the allocation of a call to a car

with means for storing pulses controlling the movements of a single car or cage{(B66B 1/2433 takes precedence)}
Definition statement
This subgroup covers:

Control systems where the calls given by the passengers are stored by the controller and executed

References relevant to classification in this group
This subgroup does not cover:

Systems especially concerned with the allocation of a call to a car

with means for storing pulses controlling the movements of several cars or cages{(B66B 1/2458 takes precedence)}
Definition statement
This subgroup covers:

Control systems where the calls given by the passengers are stored by the controller and executed and where the controller controls several cars at the same time.

References relevant to classification in this group
This subgroup does not cover:

Systems especially concerned with the allocation of a call to a car for an elevator system with multiple cars in a single hoist way

Systems especially concerned with the allocation of a call to a car for an elevator system with multiple hoist ways each containing a single car or cage

Systems especially concerned with the allocation of a call to a car for an elevator system with multiple hoist ways having multiple cars in each hoist way

Systems especially concerned with the allocation of a call to a car for an elevator system with multiple cars wherein a lateral transfer of the car and or car frame is possible

and for varying the manner of operation to suit particular traffic conditions, e.g. "one-way rush-hour traffic",{(B66B 1/2466 takes precedence)}
Definition statement
This subgroup covers:

Control systems where the way in which the calls given by the passengers are executed e.g. operating speed, permissible load is varied depending on the traffic density.

References relevant to classification in this group
This subgroup does not cover:

Systems especially concerned with the allocation of a call to a car

Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
Definition statement
This subgroup covers:

Hydraulic valves for the control of hydraulic elevators

{where the allocation of a call to an elevator car is of importance, i.e. by means of a supervisory or group controller}
Definition statement
This subgroup covers:

Systems and methods for handling the assignment of calls to cars.

References relevant to classification in this group
This subgroup does not cover:

Input devices for elevator calls

Varying door-open time

Informative references
Attention is drawn to the following places, which may be of interest for search:

Control of acceleration in general

Special rules of classification within this group

Besides the EC class in this group the documents must be provided with one or more Indexing Codes covering aspects of the call allocation other than the elevator system layout.

When the call input system is of importance: L66B201/24B101 to L66B201/24B104

When the system uses a cost function for the allocation: B66B 2201/20 to B66B 2201/243

When the allocation is influenced by the building layout: B66B 2201/30 to B66B 2201/308

When the control system changes the system of allocation: B66B 2201/40 to B66B 2201/406

mechanical
Definition statement
This subgroup covers:

Control system with regulation where the comparison between actual and calculated speed is done mechanically; The other parts of the control system can be electrical

References relevant to classification in this group
This subgroup does not cover:

Overspeed detecting

Informative references
Attention is drawn to the following places, which may be of interest for search:

Excess flow valve general (pipe rupture valve)

electrical (detecting excessive speed B66B 5/04);{(control of electrical motor H02P)}
Definition statement
This subgroup covers:
  • Control systems with regulation where the signal treatment and /or control action is performed by electrical or electronical means.
  • Control action is effective on the driving gear e.g. through the use of power electronics.
  • Control action is effective on braking devices of which the braking charateristics can be electrically modified.
References relevant to classification in this group
This subgroup does not cover:

Overspeed detecting

Details,{e.g. call counting devices, data transmission from car to control system, devices giving information to the control system}
Definition statement
This subgroup covers:

Details of control systems or control related subjects not otherwise provided for.

Special rules of classification within this group

Besides the EC class the Indexing Code range B66B 1/3415 is available to classify specific aspects.

Adaptations of switches or switchgear (switches or switchgear in general, applications of switches or switchgear for floor-levelling purpose H01H ; panels for boards or switching arrangements H02B 1/015)
References relevant to classification in this group
This subgroup does not cover:

Switches preventing overwinding

{characterised by their shape or profile}
Definition statement
This subgroup covers:

Constructional features of call registering systems.

{Call registering systems}
Definition statement
This subgroup covers:

All systems by which the user can pass his call to the elevator control.

Systems with user identification and or prevention of unauthorised use

Pay for use systems

References relevant to classification in this group
This subgroup does not cover:

Communication between the input device and the controller

False call cancellation

Multiplexing for position indicators

Informative references
Attention is drawn to the following places, which may be of interest for search:

Switchboards and panels general

Special rules of classification within this group

Beside the EC class at least two of the following Indexing Codes must be assigned: Code relating to the moment of destination input: B66B 2201/4615 or B66B 2201/4623

Code relating to on how the call is made : B66B 2201/463 to B66B 2201/4653

Code relating to the processing of information after the call has been made: B66B 2201/4661 to B66B 2201/4692

with operating or control mechanisms mounted in the car or cage or in the lift well or hoistway
Definition statement
This subgroup covers:

Switches, optical, magnetic devices and activators therefore that enable the control system to obtain the position of the car and/or landing levels in the hoistway

References relevant to classification in this group
This subgroup does not cover:

Fine levelling of the car at the landing

Preventing overwinding

Floor selectors
Definition statement
This subgroup covers:

apparatus that represent a scaled model of the elevator hoistway with containing switches to stop the car at predetermined levels

Applications of devices for indicating or signalling operating conditions of elevators
Definition statement
This group covers:

Devices, systems and methods providing information to elevator passengers or potential elevator passengers. The information can concern elevator related in formation such as running status, waiting time, assigned car, car position etc or non-elevator information like weather, publicity, internet, television etc.

The information can be transmitted by sound, light or tactile means

Data transmission systems between car and outside not related to the control of the elevator operation

References relevant to classification in this group
This group does not cover:

Indicating operation condition of escalators or moving walkways

Elevator monitoring

Data communication for control purposes

Data communication for mining hoists

Telephone inside car

Application of checking, fault-correcting, or safety devices in elevators
Definition statement
This group covers:

Apparatus, systems and processes concerned with verifying the operation of the elevator(s), limiting the damage in case of malfunctions , the prevention of unsafe operation conditions and the safety of elevator users and maintenance personnel. The verification of the operation includes :

monitoring of elevator performance (e.g. normal operation; waiting times).

monitoring related to maintenance and repair.

The verification can be remote or on site and can include actively testing of devices.

Limiting the damage in case of malfunctions includes:

overspeed detection

emergency brake apparatus

evacuation from blocked elevators

Buffers or dampers limiting damage in case of impact

The prevention of unsafe operating conditions includes:

measures taken in case of abnormal operation conditions dependent (e.g. redundant components) or independent from the system (e.g. fire, flooding, earthquake,..)

prevention of overloading

measures in case of rope or cable slack, overwinding or cable slip.

prevention of uncontrolled car movement.

References relevant to classification in this group
This group does not cover:

Safety devices for escalators or moving walkways

Safety devices related to elevator doors

Verification of ropes or cables

Access control

Informative references
Attention is drawn to the following places, which may be of interest for search:

Alarm systems in general

Automatic brakes in general

Glossary of terms
In this group, the following terms (or expressions) are used with the meaning indicated:

Safety gear means

emergency brake device for car or counterweight

Speed governor means

device to detect overspeed of car or counterweight

Synonyms and Keywords

In patent documents the following expressions/words "safety gear", "safety catch" are often used as synonyms.

In patent documents the expression/word "speed limiter" is often used with the meaning "speed governor" .

{Monitoring devices or performance analysers (B66B 5/02 takes precedence)}
Definition statement
This subgroup covers:

Monitoring arrangements for elevators, checking , registering or analysing normal and or abnormal operating conditions. Performance analysers.

References relevant to classification in this group
This subgroup does not cover:

Device or system that effectuate a response following the detection of an abnormality

responsive to abnormal operating conditions
Definition statement
This subgroup covers:

Apparatus, systems and processes concerned with abnormal operation conditions for elevators. The abnormal condition can be caused by a malfunction of the elevator system itself or arise due to external factors (e.g. power failure; earthquake; )

Apparatus to permit passengers to leave an elevator car in case of failure.

Apparatus for detecting excessive speed.

Apparatus for preventing overwinding.

Apparatus acting in case of rope or cable slack.

Apparatus acting in case of excessive loads.

Apparatus for braking or catching cars, cages or skips by operating between them and fixed guide elements or surfaces in hoistway or well.

References relevant to classification in this group
This subgroup does not cover:

Buffer-stops for cars, cages, or skips

Brakes on driving machine

Devices limiting sway of ropes and compensation ropes

Earthquake resistant guide rail arrangements

{the abnormal operating conditions being independent of the system (alarm systems in general G08B)}
Definition statement
This subgroup covers:

Apparatus, systems and processes limiting the impact of external influences on elevator operation. The external influence can have a natural cause (e.g. earthquake, strong winds, flooding, lightning) , be caused by accidents (e.g. fire, smoke) or following human (mis)behaviour (e.g. criminal acts, forced doors, vandalism). Use of elevators for fire fighting and evacuation in case of fires.

References relevant to classification in this group
This subgroup does not cover:

Verifying identity and authorisation of elevator users

Constructional features of doors

{to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door}
Definition statement
This subgroup covers:

Apparatus, systems and processes enabling the passengers to escape from the car in case of failure. Devices facilitating the liberation by rescue services.

References relevant to classification in this group
This subgroup does not cover:

Devices for lowering the car in case of power failure for hydraulic lifts

Means for passengers to contact rescue services or monitoring centre or vice versa.

Systems preventing passengers to open the car door when car is stopped between landings

{Safety devices separate from control system in case of power failure, for hydraulical lifts, e.g. braking the hydraulic jack (B66B 5/16 takes precedence)}
Definition statement
This subgroup covers:

Safety devices exclusively used in hydraulic elevators, the devices can be integrated in the control system.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Excess flow valve general (pipe rupture valve)l

for detecting excessive speed
Definition statement
This subgroup covers:

Apparatus for detecting excessive speed of elevator car and/or counterweight, upon detection emergency braking is initiated.

Mechanical speed governors;

Governor cable and tensioning means for speed governor cable;

Testing methods for speed governors;

Electrical and electronic speed governors.

Other operating mechanism for speed detecting (e.g. hydraulic; magnetic).

Adaptations of governors to prevent unintended car movements.

References relevant to classification in this group
This subgroup does not cover:

Speed measurement for normal elevator control

Synonyms and Keywords

In patent documents the following expressions/words "governor" and "limiter" are often used as synonyms.

{Overspeed governors}
Definition statement
This subgroup covers:

Mechanical speed governors used for detection of excessive speed; constructional detail thereof.

{Testing of overspeed governor}
Definition statement
This subgroup covers:

Methods and apparatus for testing devices detecting excessive speed

electrical
Definition statement
This subgroup covers:

Apparatus for detecting excessive speed of elevators and counterweights where the detection is done electrically, electronically or opto-electronically.

for preventing overwinding
Definition statement
This subgroup covers:

Apparatus preventing that the elevator car is hauled so high that it will contact the overhead structure. Apparatus to prevent that hauling cable breaks; Apparatus preventing the fall of the car in case of detached cable due to overwinding.

electrical
Definition statement
This subgroup covers:

Apparatus preventing that the elevator car is hauled so high that it will contact the overhead structure . The apparatus detects the abnormallity electrically or electronically and/or corrects the elevator behaviour electrically or electronically . Terminal slowdown systems.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Constructional details of limit switches for elevators

in case of rope or cable slack
Definition statement
This subgroup covers:

Apparatus preventing that the elevator car is operated in case where one or more ropes or cables are no longer taut (e.g. through breaking; car or counterweight rests on an obstacle in the hoistway)

{electrical}
Definition statement
This subgroup covers:

Apparatus preventing that the elevator car is operated in the case where one or more ropes or cables are no longer taut (e.g. through breaking; car or counterweight rests on an obstacle in the hoistway) and the detection is done electrically or electronically.

in case of excessive loads
Definition statement
This subgroup covers:

Apparatus preventing that the elevator car is operated in the case where the car is overloaded. The apparatus normally has one switching level.

References relevant to classification in this group
This subgroup does not cover:

Load measuring device for normal elevator operation

{electrical}
Definition statement
This subgroup covers:

Apparatus preventing that the elevator car is operated in the case where the car is overloaded. The apparatus normally has one switching level.

The detection is done electrically or electronically.

Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
Definition statement
This subgroup covers:

Apparatus retarding and stopping the car or counterweight by interacting with the hoistway or elements mounted therein.

Apparatus that retards and stops the hoisting ropes suspending the car and/or counterweight.

The apparatus can have a working based on friction or can be positively acting.

References relevant to classification in this group
This subgroup does not cover:

Braking of the driving machine for normal operation

Synonyms and Keywords

In patent documents the following expressions/words "safety gear", "safety catch" are often used as synonyms.

and applying frictional retarding forces
Definition statement
This subgroup covers:

Safety gear that works without a self reinforcing layout;

Mechanisms that initiate the braking action of all types.

{by acting on main ropes or main cables}
Definition statement
This subgroup covers:

Apparatus where the frictional retarding forces are transmitted to the elevator main ropes.

by means of rotatable eccentrically-mounted members (B66B 5/24 takes precedence)
Definition statement
This subgroup covers:

Apparatus where the frictional retarding forces are generated by contacting an eccentric member with fixed guide members or surfaces in the hoistway or well. The eccentricity produces a self reinforcing effect.

References relevant to classification in this group
This subgroup does not cover:

Safety gears that work on guide ropes or guide cables

by means of linearly-movable wedges (B66B 5/24 takes precedence)
Definition statement
This subgroup covers:

Apparatus where the frictional retarding forces are generated by contacting an wedge member with fixed guide members or surfaces in the hoistway or well. This group also covers round disks or balls that are wedged between a fixed surface in the hoistway and a tapered housing on the car or counterweight.

References relevant to classification in this group
This subgroup does not cover:

Safety gears that work on guide ropes or guide cables

by acting on guide ropes or cables
Definition statement
This subgroup covers:

Apparatus where the frictional retarding forces are applied to guide ropes or guide cables, so the car and /or counterweight is guided by ropes or cable. The means of generating the retarding forces can be any of the ones explained in B66B 5/18 to B66B 5/22

Informative references
Attention is drawn to the following places, which may be of interest for search:

Cableway/ropeway

Positively-acting devices, e.g. latches, knives
Definition statement
This subgroup covers:

Apparatus where, when applied a material interconnection (other then friction) between the brake apparatus and the fixed guide members or surfaces in the hoistway or well comes into existence.

Buffer-stops for cars, cages, or skips
Definition statement
This subgroup covers:

Passive buffers placed in the bottom or top area of the shaft or hoistway or on the car or counterweight. Details of their construction and arrangement in the hoistway. Testing of the operational fitness of the buffer.

References relevant to classification in this group
This subgroup does not cover:

Deployable device to create a safety space without any buffering action

Informative references
Attention is drawn to the following places, which may be of interest for search:

Impact dampers on vehicles

General damping devices

Synonyms and Keywords

In patent documents the following expressions/words "buffer", "bumper", "damper" and "shock absorber" are often used as synonyms.

{Structure thereof}
Definition statement
This subgroup covers:

Constructional features of buffer-stops related to their workings and installation.

References relevant to classification in this group
This subgroup does not cover:

The additional constructional features when buffer is used to create a temporary safety space

{mounted on cars or counterweights}
Definition statement
This subgroup covers:

Buffers mounted on cars or counterweights with the purpose of limiting the impact in case of a collision with the extremities of the shaft or hoistway.

References relevant to classification in this group
This subgroup does not cover:

Buffers mounted on cars or counterweights with the purpose of limiting the impact of a collision between two cars or two counterweights

{between two cars or two counterweights}
Definition statement
This subgroup covers:

Buffers mounted on cars or counterweights with the purpose of limiting the impact of a collision between two cars or two counterweights.

{with maintenance features (if not incorporated in the buffer B66B 5/0087)}
Definition statement
This subgroup covers:

Adaptations to buffers facilitating their maintenance and verification of fitness.

Adaptations to buffers so they can be used to create a temporary safety space.

Other common features of elevators
Definition statement
This group covers:

Guideways; guides for elevators; Riding means for riding guideways or guides; structural details of ropes or cables which are adapted for elevator use including non-circular and coated elongated elements. Checking, cleaning and lubricating apparatus for guideways and ropes or cables.

References relevant to classification in this group
This group does not cover:

Constructional features of hoistways

Elevator cars or cages

Driving gear for elevators

Doors or gates for elevators

Counterpoises or counter weights

Glossary of terms
In this group, the following terms (or expressions) are used with the meaning indicated:

Guide rope means

a guide means composed of a non rigid elongated member destined at guiding a car or counterweight

Synonyms and Keywords

In patent documents the following expressions/words "guideway", "guide rail" and "guide" are often used as synonyms.

In patent documents the following expressions/words "rope" and "cable" are often used as synonyms.

Guideways; Guides (arrangements in mine shafts E21D 7/02)
Definition statement
This subgroup covers:

Fixed continuous structures installed along or constructional features of the hoistway adapted to guide the car and/or counterweight along a fixed path in the hoistway. Guideways; guides for elevators; Guide ropes

References relevant to classification in this group
This subgroup does not cover:

Arrangements of guideways in cranes

Guide rails for lifts associated with stairways

The installation of guideways

Guide rails for carrying surfaces of escalators and moving walkways

Self-supporting constructions of hoistways containing the guide rails

Production of guide rails

Informative references
Attention is drawn to the following places, which may be of interest for search:

Fixations in general

{Riding means, e.g.}Shoes, Rollers,{between car and guiding means, e.g. rails, ropes (rollers adapted to match the shape of a special guiding means B66B 7/02 ; vibration attenuation systems acting between car and its supporting frame B66B 11/026)}
Definition statement
This subgroup covers:

Riding means in general located between the car or counterweight and the guideways or guides. The riding means are intended to keep the car and or counterweight in a defined geometrical relationship with the guides, to reduce friction and attenuate shocks and vibrations Rollers, shoes located between the car or counterweight and the guideways or guides.

References relevant to classification in this group
This subgroup does not cover:

Vibration attenuation systems between the car and its supporting frame

Roller assemblies for carrying surfaces of escalators and moving walkways

Arrangements of ropes or cables
Definition statement
This subgroup covers:

Elongated flexible members suited for withstanding the suspension forces on cars and/or counterweights and/or transmitting the tractive force to car and or counterweight.

Elongated flexible members compensating the weight of the suspension and/or tractive force transmitting members.

Elongated flexible members for power and or signal supply to the car and/or counterweight.

Accessories for the elongated members

cable stabilisers

protecting devices for ropes

Relationship between large subject matter areas

Cables in general (construction, production,..) D07B; Transmission cables F16G 9/00; Transmission chains F16G 13/00

References relevant to classification in this group
This subgroup does not cover:

Physical layout of the rope or cable within the hoistway to obtain a desired technical effect (roping)

{Belts}
Definition statement
This subgroup covers:

Elongated members of non-circular cross-section used for the suspension or transmission of tractive force.

References relevant to classification in this group
This subgroup does not cover:

Belts used for weight compensation

Belts used for power and signal supply

Chains

Informative references
Attention is drawn to the following places, which may be of interest for search:

Rubber field in general

V-belts in general

{Power supply or signal cables}
Informative references
Attention is drawn to the following places, which may be of interest for search:

Electrical connectors

{Cable weight compensating devices}
Definition statement
This subgroup covers:

The elongated member itself.

Tensioners and dampers for the elongated member

for connection to the cars or cages, e.g. couplings
Definition statement
This subgroup covers:

connections to the cars, counterweights and fixed structures in the hoistway or machine room.

Measures to stop transmission of vibration between cable and car or counterweight

Informative references
Attention is drawn to the following places, which may be of interest for search:

General means for fixing cables

{Belt termination devices}
Informative references
Attention is drawn to the following places, which may be of interest for search:

Termination devices for straps

Load securing devices

for equalising rope or cable tension
Definition statement
This subgroup covers:

Devices taking up the difference in tension between several cables.

Devices taking up the difference in length between several cables. the devices are mounted between the cable termination and the cage, counterweight or drum.

Checking, lubricating, or cleaning means for ropes, cables or guides
Definition statement
This subgroup covers:

flaw detectors for cables ropes and belts.

lubricating means for ropes cables and guides

cleaning means for guides ropes and cables

References relevant to classification in this group
This subgroup does not cover:

Testing of power transmitting endless elements

Informative references
Attention is drawn to the following places, which may be of interest for search:

Rope inspection in FICLA

B66B5/02&C

{by analysing magnetic variables}
Informative references
Attention is drawn to the following places, which may be of interest for search:

Optical flaw detection in moving materials in general

{specially adapted for guides}
Definition statement
This subgroup covers:

Guide checking device for installed guide rails

References relevant to classification in this group
This subgroup does not cover:

Installation of guide rails

{Lubricating means}
Informative references
Attention is drawn to the following places, which may be of interest for search:

Lubrication of ropeways

Lubricating in general

Kinds or types of lifts in, or associated with, buildings or other structures (characterised by control systems B66B 1/00 ; apparatus for raising or lowering persons on stages of theatres A63J 5/12)
Definition statement
This group covers:

lift or elevator concepts in which either the function of the elevator or the components that are used and/or the way components are arranged differs from traditionally traction elevators.

Lifts with a characterising driving mechanism

Lifts with multiple cars

Lifts with inclined hoistways

Transportable lifts that can be shifted from one part of a building to another or to another building

References relevant to classification in this group
This group does not cover:

Lifts facilitating access to vehicles for disabled persons

Devices especially for evacuation of high-rise buildings

Space elevators

Lifts for bulky goods

B66F,C,D

Lifting tables, platform, scissor tables

Vehicle lifts in parking garages

Lifts on ladders

Informative references
Attention is drawn to the following places, which may be of interest for search:

Devices used for window cleaning

Devices used for facade cleaning

Elevator system with second cabin instead of counterweight

{by rope climbing devices}
Informative references
Attention is drawn to the following places, which may be of interest for search:

Apparatus for mountaineering

Suspended scaffolding platforms

Self acting brakes

actuated pneumatically or hydraulically (platforms for lifting or lowering through short distances B66F 7/00)
Definition statement
This subgroup covers:

constructional aspects of the as such driven elevators

Friction enhancing systems on pulleys

References relevant to classification in this group
This subgroup does not cover:

Control of hydraulic elevators

Hydraulic pistons

associated with stairways, e.g. for transporting disabled persons{(facilitating access of invalids to vehicles A61G 3/02)}
Informative references
Attention is drawn to the following places, which may be of interest for search:

Balustrades for stairways etc.

with a liftway specially adapted for temporary connection to a building or other structure (B66B 9/193 takes precedence)
References relevant to classification in this group
This subgroup does not cover:

With inclined liftways

Main component parts of lifts in, or associated with, buildings or other structures
Definition statement
This group covers:

Constructional features of hoistways

elevators characterised by the location of the driving gear and or controller

Loading/unloading equipment for lifts associated with buildings

Roping

Elevator cabin, cars, cages or load supporting structures

Driving gear for elevators

References relevant to classification in this group
This group does not cover:

Installation of elevators

Hoistways, lift wells, lift shafts,

Glossary of terms
In this group, the following terms (or expressions) are used with the meaning indicated:

Roping

The spatial distribution of the traction and/or suspension means throughout the elevator installation. The distribution is changed in order to obtain e.g. a different speed ratio, space saving in the hoistway, more stable suspension of the car

{Maintenance features (devices facilitating maintenance in general B66B 5/0087)}
Definition statement
This subgroup covers:

features forming an integral part of the elevator car which enable or facilitate the maintenance tasks of service personnel

with hoisting rope or cable positively attached to a winding drum {(B66B 11/0075 takes precedence)}
References relevant to classification in this group
This subgroup does not cover:

Roping aspect when such a drive is used

with hoisting rope or cable operated by frictional engagement with a winding drum or sheave {(B66B 11/008 takes precedence)}
References relevant to classification in this group
This subgroup does not cover:

Roping aspect when such a drive is used

Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings (door fittings, locks E05)
Definition statement
This group covers:

Doors and gates for elevator cages and landings.

Door locks specially adapted for use in elevator doors

Mechanisms and controllers for (semi-) automatic operation of the doors.

Door contacts

Safety devices related to elevator doors

Relationship between large subject matter areas

Doors of general application E05F

References relevant to classification in this group
This group does not cover:

General door fittings

E05

Glossary of terms
In this group, the following terms (or expressions) are used with the meaning indicated:

Landing door means

Stationary door closing the entrance to the lift well

Car door

Door attached to the elevator car or cabin which closes the entrance thereof

Door or gate operation (of general application E05F)
Definition statement
This subgroup covers:

The complete door mechanism if not of the door types mentioned below.

Constructional details : motor,brake, clutch, damper, test device

Informative references
Attention is drawn to the following places, which may be of interest for search:

Counterweight for door in general

of sliding doors
Definition statement
This subgroup covers:

Vertically sliding elevator doors or gates.

by car or cage movement
Definition statement
This subgroup covers:

Sliding elevator doors or gates where the operation thereof is effected through the movement of the car.

References relevant to classification in this group
This subgroup does not cover:

Unlocking the door by the car

Arrangements for effecting simultaneous opening or closing of cage and landing doors
Definition statement
This subgroup covers:

Arrangements and apparatus that effect the simultanous movement in opening and closing of the cage and landing doors when the cage is situated at a landing. The devices often perform an unlocking action as well. Their operating principle can be mechanical, electrical or electromechanical or hydraulic .

Control systems or devices
Definition statement
This subgroup covers:

Systems, methods and apparatus for controlling the operation of elevator doors.

References relevant to classification in this group
This subgroup does not cover:

Locking and unlocking devices for elevator doors

Safety devices preventing passengers getting trapped between closing doors

Door or gate locking devices controlled or primarily controlled by condition of cage, e.g. movement or position
References relevant to classification in this group
This subgroup does not cover:

Locks for special uses

Operation of door or gate contacts
Definition statement
This subgroup covers:

Safety contacts to check if door is correctly locked

The circuit containing such contacts (safety chain or safety line)

Checking and testing systems for the circuit

Informative references
Attention is drawn to the following places, which may be of interest for search:

Safety contacts associated with closing members in general

Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
Definition statement
This subgroup covers:

Devices to avoid lock picking

Devices for emergency unlocking and/or opening of car and landing doors

Systems detecting unauthorised access to the hoistway

Systems to detect car position in emergency if associated with the doors

Systems avoiding passengers getting trapped between doors

Systems avoiding passengers getting trapped between car and hoist way

References relevant to classification in this group
This subgroup does not cover:

Adaptations of car door locks preventing opening between floors

Informative references
Attention is drawn to the following places, which may be of interest for search:

Proximity switches in general

between closing doors
Definition statement
This subgroup covers:

Devices preventing that passengers get caught between closing doors or door panels and door frame

Devices preventing that members of passengers their clothing or luggage gets drawn in between door panels an doorframe or car walls

between car or cage and wells
Definition statement
This subgroup covers:

Devices preventing that passengers or freight get caught between the car and the hoistway in cars without car doors

movable car sills; photo electrical protection of the open car entrance

Lining to smoothen the hoistway wall in front of the car entrance

References relevant to classification in this group
This subgroup does not cover:

Car doors

{Toe guards or apron devices}
Informative references
Attention is drawn to the following places, which may be of interest for search:

Toe guard in FICLA

B66B11/02&Z

Constructional features of doors or gates (of interest apart from this application E06B)
References relevant to classification in this group
This subgroup does not cover:

Swinging bridges between car floor and landing

Doors for mining lifts

Doors in general

{Details of door jambs}
Informative references
Attention is drawn to the following places, which may be of interest for search:

For controller built in door frame

B66B1/34&C (FI)

Glossary of terms
In this subgroup, the following terms (or expressions) are used with the meaning indicated:

Three way frame

Japanese expression for door post

{Details of seals and joints}
Informative references
Attention is drawn to the following places, which may be of interest for search:

Seals in general

Main component parts of mining-hoist winding devices
References relevant to classification in this group
This group does not cover:

Cable brakes

Hoist brakes general

Winding towers for mines

Rope or cable carriers
Definition statement
This subgroup covers:

Drums and pulleys both for mine- hoist and elevators in buildings.

Friction sheaves; "Koepe" pulleys
Definition statement
This subgroup covers:

Pulleys that transmit hoisting force to the hoisting members by means of friction.

Friction enhancing systems on pulleys

Informative references
Attention is drawn to the following places, which may be of interest for search:

Pulleys in general

Special friction

Drums
Definition statement
This subgroup covers:

The motive force on the hoisting member is generated by winding/unwinding the hoisting member on a drum

Driving gear
Definition statement
This subgroup covers:

The motive force generating means to power the rope and cable carriers for mine lifts

Roping systems used in mines

Hoistway equipment
Definition statement
This group covers:
  • Equipment installed and used in mining hoistways
  • Mining hoist cages
  • Mining skips
  • Counterweights for both mining and elevators installed in buildings
References relevant to classification in this group
This group does not cover:

Winding towers for mines

with tiltable platforms
Definition statement
This subgroup covers:

e.g. to transport long materials

Mining skips
References relevant to classification in this group
This subgroup does not cover:

Skips used for inclined or horizontal transport

Counterpoises
Definition statement
This subgroup covers:

counterpoises used in mine lifts

counterpoises used in lifts associated with buildings

constructural features of counterpoise

filler weights

Synonyms and Keywords

In patent documents the following expressions/words "counterweight", "counterpoises", balance weight" and "compensation weight" are often used as synonyms.

Applications of loading and unloading equipment (of general application B65G)
References relevant to classification in this group
This subgroup does not cover:

Loading and unloading in general

Loading and unloading of lifts associated with buildings

Safe lift clips; Keps
Definition statement
This subgroup covers:

Devices used for locking the car or cage to the hoist way or guide rails during loading and unloading. The devices are self releasing so that operations can continue after loading or unloading. The devices can have a double function as safety break which then is activated during an emergency

Mining-hoist operation
Definition statement
This group covers:

Installation of mining hoists

installation of elevator associated with buildings

design of elevators associated with buildings

modernisation of elevators

installing and exchanging guide rails and ropes or cables both in mines and elevators in buildings

Method for training service staff

safety devices used during installation only

References relevant to classification in this group
This group does not cover:

Scaffolding in the hoistway

Elevators not provided for in groups B66B 1/00 to B66B 19/00
Definition statement
This group covers:

This symbol is not to be used.

Kinds or types of escalators or moving walkways
Definition statement
This group covers:

principals and concepts

installation of escalators and moving walkways in or against a building

References relevant to classification in this group
This group does not cover:

Tools for installation of escalators and moving walkways

Stairways transforming in to an elevator or lifting platform

Informative references
Attention is drawn to the following places, which may be of interest for search:

Skilifts

General continuous transporters with variable speed

Conveyers for articles

Component parts of escalators or moving walkways
Definition statement
This group covers:

Frame and frame structure

Driving gear for the passenger carrying surface

Driving gear for the handrails

Carrying surfaces

Guiding means for carrying surfaces

tensioning means for carrying surfaces

tensioning means for handrails

Balustrades

handrails

References relevant to classification in this group
This group does not cover:

Frame structures for general conveyers

Driving gear
Informative references
Attention is drawn to the following places, which may be of interest for search:

Gearbox in general

Carrying belts
Definition statement
This subgroup covers:

continuous carrying surfaces for horizontal or slightly inclined transport of passengers

carrying surface composed of interlinked pallets having a single side exposed to the passenger for horizontal or slightly inclined transport of passengers

Steps
Definition statement
This subgroup covers:

carrying surfaces having a tread and riser used in escalators

constructional details of steps

production methods of steps

advertising on steps

Informative references
Attention is drawn to the following places, which may be of interest for search:

Advertising on walls or similar surfaces in general

Guiding means for carrying surfaces
Definition statement
This subgroup covers:

for steps and pallets

{Roller assemblies}
Informative references
Attention is drawn to the following places, which may be of interest for search:

Roller attached to moving chains or belts in general

Means allowing tensioning of the endless member
Informative references
Attention is drawn to the following places, which may be of interest for search:

Belt or chain tensioning means in general

Balustrades
Definition statement
This subgroup covers:

constructional details of balustrades

Guiding means for the handrail

Handrails

Handrails (driving gear therefor B66B 23/02 ; tensioning means therefor B66B 23/16 ; preventing jamming thereof by foreign objects B66B 29/04 ; accessories therefor B66B 31/02)
Definition statement
This subgroup covers:

shape, kind and materials adapted for handrails

advertising on handrails

References relevant to classification in this group
This subgroup does not cover:

Fabrication of handrails

Fiber reinforcement

Control of escalators or moving walkways (walkways of variable speed type B66B 21/12 ; handrails of variable speed type B66B 23/26 ; of general application G05)
Definition statement
This group covers:

Starting, reversing, slowing down in relation to passenger demand and special needs for passengers

control system configuration

monitoring of escalators for maintenance or repair

References relevant to classification in this group
This group does not cover:

Monitoring for safety reasons

Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning (for safety B66B 29/00)
Definition statement
This group covers:

protection structures for elevators against fire, rain, snow other external influences

tools for maintenance and installation of escalators and moving walkways

adaptations for conveying hand carts e.g. shopping or airport carts

Informative references
Attention is drawn to the following places, which may be of interest for search:

Cleaning in general

Japanese classification

B66B31/00&F /fi

Hand carts per se

This page is owned by Office of Patent Classification.
Last Modified: 10/11/2013