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7540356 Method and apparatus to prevent or minimize the entrapment of passengers in elevators during a power failure  
The invention provides a system and method for handling power outages in a multiple car elevator system in a building having a plurality of floors. The system includes an energy calculator...
7500543 Sheave with taper lock coupler  
A coupling arrangement for coupling a traction sheave on a motor shaft includes a taper lock bushing and a traction sheave having a tapered bore adapted to receive the taper lock bushing. The taper...
7478706 Method and apparatus of operating a drive with linear motor  
A drive, a method of operating the drive and an elevator operated by the drive for the movement of persons or goods by at least one car utilize a linear motor. The drive includes at least one...
7374020 Energy efficient elevator system  
The invention is directed to an apparatus and methods for enhancing the energy efficiency of a variable speed drive (VSD) used to control an elevator by disconnecting the VSD from the AC power...
7243759 Tapered coupler for coupling a motor to a hoist machine  
There is disclosed a coupling arrangement for coupling a motor to a hoist machine. The coupling arrangement comprises a first drum flange comprising an outer body having a first end and a second...
7156209 Elevator roping arrangement  
An elevator installation includes an elevator car located in a hoistway and having a floor, and a rear wall extending upward from the floor. A counterweight is located in the hoistway adjacent to...
7019421 Modular linear electric motor with limited stator excitation zone and stator gap compensation  
A linear motor system including compartmentalized stator sections provides an interchangeable and serviceable alternative to other linear motors. The stator sections may be individually-energized...
6968925 Elevator apparatus  
An elevator apparatus has an actuating device including a sheave around which a rope engaged with an ascending and descending cage is wound and a driving section for rotating the sheave. The sheave...
6910553 Building elevator  
A building elevator with an elevator mast and an elevator car with at least one electric drive motor for the elevator car for moving the same along the elevator mast. A novel overload-prevention...
6681898 Coupling arrangement for coupling a motor to a hoist machine  
A coupling arrangement for coupling a motor to a hoist machine comprises a first drum flange having an inner surface and an outer surface opposite the inner surface for coupling to a hoist machine...
6675938 Door system including linear motor driving mechanism  
A door system includes a door support by which a door is movably supported, a linear motor for generating a thrust to open and close the door, a link mechanism made of a non-magnetic material for...
6578674 Converter arrangement for modular motor  
A bracket assembly and method for coupling a motor to a hoist machine comprising an adapter plate for coupling to a motor face and sized to cover the face of the motor and accommodate an existing...
6513627 Deep level mine shaft hybrid conveyance system  
A conveyance system is provided which includes a conveyance for conveying cargo and guide to which the convenience is displaceably mounted for guiding displacement of the conveyance. The system...
6464042 Strut for coupling linear drive to elevator car or counterweight  
A direct drive apparatus for an elevator wherein a movable part of the direct drive, particularly a linear motor, is connected with ark elevator car or counterweight for transmission of compression...
6422350 Monitoring device for drive equipment for elevators  
A definite switching-off of drive equipment for elevators is accomplished with a control at an input side external of a frequency changer power unit that ascertains the presence or the absence of...
6382361 Elevator  
An elevator system in which an elevator-car and a counter weight are suspended on a pulley system in a hoistway. The elevator system includes a receiving unit for receiving an electric power from a...
6321877 Controlling apparatus for elevator with divided control panel  
A control panel is divided into units in accordance with each control function, units to be controlled by or connected to the divided unit are divided into unit groups in accordance with a place...
6305501 Elevator reluctance linear motor drive system  
A drive system for an elevator includes a drive machine by means of which the for moving and supporting an elevator car. The primary circuit of a linear motor is permanently fitted to a wall of a...
6269911 Elevator installation having a central control in a remote central operation center  
In an elevator installation system of at least one elevator installation with one or more elevators and a service center, which is functionally connected therewith, but provided spatially separate...
6202794 Procedure for adjusting air gaps between rotors and stators in an elevator drive machine  
The invention relates to a procedure for setting the magnitudes of the axial air gaps and/or the mutual positions of the rotors and stators defining the axial air gaps in a gearless elevator drive...
6189657 Linear motor for driving a lift car  
A linear motor for lifts for driving a lift car guided in a lift shaft with at least one stator winding row which can be fixed to the lift shaft or to the lift car and with at least one row of...
6085874 Rail-climbing elevator counterweight having flat machines  
An elevator system includes a counterweight assembly having a plurality of drive machines having integrally formed drive wheels adapted to frictionally engaged a guide rail for driving the...
5861586 Horizontal and vertical passenger transport  
Elevator cabs are transferred between elevators, which may be shuttles, in various levels of a building, such as transport floors, in response to car calls registered in the cabs and hall calls...
5844334 Traction machine motor with improved cooling  
On a traction machine motor wherein both a rotor (6) and a driving sheave (10) are attached on the rotating shaft (5), which is supported by both a motor bracket (1) and a bearing stand (2), and a...
5844332 Cylindrical linear motor having individually toothed laminated primary cores  
An improved cylindrical linear motor is capable of being more easily assembled by changing the constructions of a primary iron core and a primary coil and significantly preventing an over-heating...
5841082 Secondary guidance system for linear induction motors driving elevator car doors  
A motor secondary in a linear induction motor used for opening and closing doors in an elevator system includes a secondary guide system having a first secondary guide and a second secondary guide....
5816368 Elevator cars switch hoistways while traveling vertically  
Each of a pair of vertically and horizontally adjacent hoistways has an elevator car coupler roped through a traction machine to a counterweight so as to be able to raise and lower the elevator car...
5799755 Linear motor transfer of cab horizontally between elevator and bogey platforms  
A cab having a wheeled carriage fixed thereto is moved between rails on an elevator car frame and similar rails on a wheeled bogey. The ends of the rails are scarfed in a complimentary fashion so...
5773772 Transferring elevator cabs between non-contiguous hoistways  
A plurality of express shuttle elevators S1-S4 exchange elevator cabs at a transfer floor 26 with local elevators L1-L10 by means of a carriage 107, the casters of which 93 are guided by tracks...
5756946 Flexible mounting of a motor secondary in a linear induction motor for driving elevator car doors  
A linear induction motor for opening and closing elevator car doors in an elevator system includes a motor primary fixedly attached to a door hanger and a motor secondary flexibly mounted to a...
5712456 Flywheel energy storage for operating elevators  
An elevator system, having a three phase rectifier (20) which converts energy from a three phase AC main (21) to provide DC power on a bus (19) to a three phase inverter (18) that drives a three...
5625174 Linear motor elevator  
A linear motor elevator includes a linear motor that is permitted motion within the hoistway. The linear motor is mounted in a manner permitting motion of the entire linear motor, including stator,...
5579869 Secondary conductor of an elevator-driving linear induction motor  
This invention is concerned in a secondary conductor for an elevator-driving linear induction motor in which, in connecting secondary conductor members to one another, adjoining portions of...
5565660 Apparatus in the overspeed governor of an elevator  
The overspeed governor is provided with a switch to disable the operation of the elevator motor. The apparatus includes a controllable actuator which resets the switch into a state enabling the...
5555957 Control system for a materials-handling device, especially for a shelf storage and retrieval device  
A control system for a materials-handling device, especially for a shelf storage and retrieval device. The device includes a horizontal travelling mechanism having a horizontal drive; a lift truck...
5547059 Linear motor elevator system  
A linear motor elevator system comprising a sheave disposed in the upper portion of an elevator hoistway, a length of rope wound around the sheave, a movable member connected to said rope, a...
5542501 Apparatus for controlling an elevator to reduce vibrations created in a linear drive motor  
An apparatus for controlling an elevator capable of providing enhanced comfort to passengers by reducing and compensating for propulsion change and propulsion ripples, the apparatus comprising an...
5501300 Mover vibration absorbing device for linear motor elevator  
A mover vibration absorbing device for a linear motor elevator is described. The device includes top and bottom frames provided on top and bottom of a counter support unit respectively. A plurality...
5495918 Smooth and quiet linear induction motor elevator door operation  
An elevator car door is moved by a variable voltage, variable frequency linear induction motor which is driven open current loop to achieve a desired velocity profile indicated by an incremental...
5476159 Linear motor supporting apparatus for linear motor elevator  
A linear motor supporting apparatus for a linear motor elevator capable of greatly dampening a load from a stator when a relative displacement of the stator and guide rails occur, includes a linear...
5476158 Rotor time constant adaptation for induction motor in vector controlled elevator drive  
Torque current reference I Tref and reference acceleration a ref are sampled in a vector controlled induction motor drive for developing a quality criterion by which an estimated rotor time...
5469936 Support device for an item of retractable street furniture having electrical actuation  
A support device for an item of retractable street furniture having electrical actuation is provided having a stationary box installed in the ground; moving equipment housed in the box and...
5419411 Energy conservation type hydraulic elevator and speed control method of hydraulic elevator  
In the energy conservation type hydraulic elevator, a load carrying elevator and a balancing elevator are each provided on a respective hydraulic cylinder. The hydraulic cylinders are connected to...
5407027 Elevator control apparatus with compensation for current sensor offset voltage  
An elevator control apparatus has a converter for converting AC power to DC power, an inverter for converting the DC power resulting from the conversion by the converter into AC voltage of a...
5400204 System for detecting a breakage of a power cable for an elevator system  
System For Detecting A Breakage Of A Power Cable For An Elevator System Which can accurately detect the breakage of at least one copper wire in the respective power cables present between the...
5377786 Elevator with a governor  
An elevator includes a cab supported and guided by guide rails for travel along the guide rails. Emergency stop devices for stopping the travel of the cab are fixed to the cab. Mounted on the cab...
5325036 Elevator speed sensorless variable voltage variable frequency induction motor drive  
During motor jerk-out, the real component of a stator current ReI is measured as an approximation to torque current I T , and a reference acceleration A ref is obtained as an approximation to the...
5300737 Tubular linear motor driven elevator  
A linear motor driven elevator comprises: a cab capable of upward and downward movement; a linear motor comprising a movable element and a stationary element; a counterweight attached to the...
5288956 Self running type elevator system using linear motors  
A self running type elevator system using linear motors in which a control of power supply to a plurality of elevator cars can be achieved without increasing the size of the system enormously. The...
5276293 Tubular linear motor primary element  
A tubular linear primary element is constructed of a plurality of core groups, each core group being constructed of a plurality of laminated comb-shaped plates, each plate having a plurality of...
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