Abstract: An elevator system sound reducing assembly includes an elevator car moveably disposed in an elevator shaft. Also included is a counterweight moveably disposed in the elevator shaft, the counterweight operatively coupled to and guided along a counterweight frame. Further included is a barrier located at a height of the elevator shaft that corresponds to passage of the elevator car and the counterweight relative to each other, the barrier disposed between the counterweight and the elevator car upon passage of the elevator car and the counterweight.

Abstract: A paralleled drive having a first plurality of interphase inductors to distribute three phase alternating current power to a first and a second converter that transfer power to a first and a second direct current (DC) buses respectively, a bus coupler connecting the first and second DC buses, a first and a second inverter connected to the first and second DC buses respectively. The drive also includes a controller connected to the first and second converters and the first and second inverters, the controller generates control signals to cause the first and second converter to transfer power to the first and second direct current (DC) buses respectively, and the controller configured to generate control signals to cause the first and the second inverters to generate a plurality of motor excitation signals respectively, and a second plurality of interphase inductors operable to combine the plurality of motor excitation signals.

Abstract: An electromagnetic propulsion system includes a plurality of primary windings and a permanent magnet arranged to move with respect to the plurality of primary windings. A secondary winding of the system is disposed in a non-moving relationship with the permanent magnet. An excitation energy is applied to the plurality of primary windings for creating a magnetic field that includes a base component and low frequency harmonic components. The base component substantially contributes toward motion between the plurality of primary windings and the permanent magnet and the low frequency harmonic components substantially contributes toward generating an electro-motive force in the secondary winding based on displacement between the plurality of primary windings and the permanent magnet.

Abstract: A passenger detector (10) for use in a passenger conveyor system (12) is provided that includes a structured light source (34), a structured light detector (36), and a controller (38). The structured light source (34) is operable to project light (40) into a detection area (32) in a predetermined projected pattern. The structured light detector (36) is operable to generate reflected light signals indicative of light (40) reflected back toward the structured light detector (36) from the detection area (32). The controller (38) is operable to receive the reflected light signals from the structured light detector (36), and operable to process the reflected light signals to make a determination as to whether a passenger is disposed within a detection area (32).

Abstract: A method of operating an elevator system includes presenting a credential at a security panel disposed at an elevator system landing of a public area of a building. If the presented credential is correct a contact between the security panel and an elevator control system is opened. Opening of the contact allows for placement of a call via the elevator control system for an elevator car to the landing. An elevator system includes one or more elevator cars located in one or more hoistways. An elevator control system controls movement of the elevator cars. A security panel is operably connected to the elevator control system and located at an elevator system landing. Presenting a correct credential at the security panel opens a contact between the security panel and the elevator control system thus initiating a call of an elevator car of the one or more elevator cars to the landing.

Abstract: A movable car mounted governor assembly for an elevator car is provided. The assembly includes a chassis releasably mounted to an upright of an elevator car and a governor operationally mounted to the chassis. The chassis is configured to move from a first position to a second position relative the upright, wherein in the first position the chassis is fixedly secured to the upright and in the second position the chassis is not fixedly secured to the upright.

Abstract: An elevator system (10) includes an elevator hoistway (12) having a plurality of landings (14), an elevator car (16) configured to move within the elevator hoistway (12), and a position determining system (40) having a plurality of landing position indicators (48) and a plurality of dummy position indicators (50). At least one of the landing position indicators (48) is mounted proximate to each of the plurality of landings (14). Each dummy position indicator (50) is mounted within the elevator hoistway (12) at a predetermined vertical position between various of the plurality of landing position indicators (48). The position determining system (40) additionally includes a sensor (42) configured to determine when the elevator car is adjacent one of the plurality of landing position indicators (48) or one of the plurality of dummy position indicators (50). The plurality of landing position indicators (48) and the plurality of dummy position indicators (50) are positioned to form a sequence of unique patterns.

Abstract: A sensor assembly for a passenger conveying device, a safety system and the passenger conveying device, wherein the sensor assembly comprises an optical fiber disposed along a length of a skirt board of the passenger conveying device; a light source disposed at a first end of the optical fiber, light being incident into the optical fiber; and an optical receiver disposed at the first end of the optical fiber, the optical receiver receiving backwards scattered light from the optical fiber and being capable of sensing a signal indication of the backwards scattered light, wherein the optical fiber is associated with a sensing element such that the sensing element causes deformation of the optical fiber when the sensing element is subjected to pressure, and the optical receiver is capable of sensing a change in the signal indication of the backward scattered light caused by the deformation of the optical fiber.

Abstract: A ropeless elevator system, a propulsion system, and a method for operating a ropeless propulsion system are disclosed. The ropeless elevator system may include an elevator car, a hoistway in which the elevator car travels, and a ropeless propulsion system. The ropeless propulsion system may include electrical windings energized by a power source, the electrical windings affixed to a stationary structure, the stationary structure associated with the hoistway, and a magnet, the magnet affixed to a moving structure, the moving structure associated with the elevator car, and interaction between the electrical windings and the magnet generates a thrust force on the elevator car traveling in the hoistway.

Abstract: A method (160) for constructing a building (92) with an elevator system (20) is disclosed. The method (160) may include forming a first hoistway (22) for the elevator system (20) within two adjacent levels (82, 84) of the building (92), installing a first stationary part (54) of a first linear permanent magnet motor within the first hoistway (22), placing a first elevator car (24) within the first hoistway (22), mounting a first moving part (52) of the first linear permanent magnet motor on the first elevator car (24), and using the first stationary part (54) and the first moving part (52) of the first linear permanent magnet motor to generate a vertical thrust force to move the first elevator car (24) within the first hoistway (22), the first elevator car (24) carrying at least one of passengers, equipment and materials for construction of upper levels of the elevator system (20) and the building (92).

Abstract: A method for connecting a mobile device to an elevator system, the mobile device executing a mobile application for issuing elevator calls to the elevator system, includes: determining a geographical location of the mobile device; obtaining a list of buildings within a geographical range of the geographical location of the mobile device; determining if a registered building is in the list of buildings, the registered building being a building at which a user has registered with the elevator system; and automatically establishing a connection between the mobile device and the elevator system at the registered building.

Abstract: Embodiments are directed to receiving, by a demand entering device configured to receive an elevator destination command, a request for at least one of: statistical data regarding use of at least one elevator, and field data in connection with a field service, maintenance, repair, or installation activity associated with the at least one elevator, and obtaining, by the demand entering device, at least one of the statistical data and the field data in response to the request.

Abstract: A propulsion system includes a magnetic screw having a first magnetic element having a first polarity, the first magnetic element arranged along a first non-linear path along a longitudinal axis of the magnetic screw and a second magnetic element having a second polarity, the second magnetic element arranged along a second non-linear path along the longitudinal axis of the magnetic screw; a motor for rotating the magnetic screw about the longitudinal axis; and a stator made from a ferrous material, the stator having a body with an internal cavity, the body including a plurality of poles extending into the cavity, the poles arranged along a pole non-linear path along a longitudinal axis of the stator.

Abstract: A belt for suspending and/or driving an elevator car of an elevator system includes a plurality of tension members arranged in a lengthwise direction and a jacket substantially retaining the plurality of tension members. The jacket includes a traction portion, a back portion, and an inner portion between the traction portion and the back portion. The traction portion is formed from a first material and the inner portion is formed from a second material having an increased fire resistance compared to the first material. A method of forming an elevator system belt includes arranging a plurality of tension members in a lengthwise direction and securing the plurality of tension members in a jacket by at least partially enclosing the plurality of tension members in the jacket. The jacket includes a traction portion, a back portion, and an inner portion having a greater fire resistance than the traction portion.

Abstract: An elevator system includes one or more elevator cars configured to travel along a hoistway. One or more rails extend along the hoistway and are operably connected to the one or more elevator cars to guide the one or more elevator cars along the hoistway. Each rail of the one or more rails includes a plurality of rail segments arranged end to end. Each rail segment is affixed to a hoistway wall to transfer vertical loads from the rail segment to the hoistway wall. Each rail segment is secured to the hoistway wall via a plurality of rail support brackets. The vertical loads are transferred from the rail segment to the hoistway wall via at least one rail support bracket of the plurality of rail support brackets.

Abstract: A method of operating an elevator system is provided. The method includes powering, using a battery, the elevator system when an external power source is unavailable. The method also includes controlling, using a controller, a plurality of components of the elevator system. The controlling comprises operating at least one of the battery, an elevator car, a drive unit, and a brake. The method further includes determining, using the controller, a run profile of the elevator car in response to a selected deceleration. The method yet further includes operating, using the controller, the elevator car in response to the run profile determined, and determining, using the controller, an actual velocity of the elevator car.

Abstract: A system and method for monitoring a first wire rope and a second wire rope is provided. The first and second wire ropes each include a contact portion that contacts a sheave, a first end portion, and a monitored portion that extends between the contact portion and the first end portion. The sheave electrically connects the contact portions of the first and second wire ropes. The system includes a controller that is electrically connected to each of the first and second wire ropes to form a circuit with the monitored portions of the first and second wire ropes. The controller selectively applies a signal to the monitored portions of the first and second wire ropes and determines an electrical characteristic thereof. The controller uses the determined electrical characteristic to determine a condition of the first and second wire ropes.

Abstract: A method of fault detection of a belt or rope includes interconnecting a plurality of cords of the belt or rope, the cords including a plurality of wires, to form a bridge circuit. A fault detection bridge circuit is subjected to a voltage excitation and outputs a voltage which is indicative of the belt or rope damage but remaining insensitive to other environmental noises.

Abstract: The invention discloses: —a drive belt safety device (20) including a belt retaining portion (22) and a wedging portion (24) operably coupled to the belt retaining portion (22), wherein the wedging portion (24) includes a geometry configured to wedge between a drive belt (16) and a pulley (12, 14); and —a method of securing a drive belt system (10), the drive belt system (10) comprising a pair of pulleys (12, 14) configured to rotate and a drive belt (16) disposed around each of the pulleys (12, 14), the method comprising the steps of placing at least one drive belt safety device (20) adjacent to a pulley (12, 14), and securing a portion of the drive belt (16) to the at least one drive belt safety device (20).

Abstract: An exemplary elevator system includes at least one elevator car. An access controller is configured to provide an access credential to a portable wireless communication device responsive to a request from that device indicating a desire for at least access to the elevator system. The access credential at least temporarily indicates that the desired access should be granted. A credential receiver is configured to obtain the provided access credential from the portable wireless communication device. An entry device allows the desired access responsive to the credential receiver obtaining the access credential.