Matches 1 - 20 out of 20


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US20120006628 ELEVATOR SYSTEM  
An elevator system in which a controller monitors whether or not a speed of an ascending/descending body reaches a preset overspeed. At a time of maintenance work, a stopper is interposed between...
US20130133983 ELEVATOR SYSTEM WITH ROPE SWAY DETECTION  
An exemplary elevator system includes a first mass that is moveable within a hoistway. A second mass is moveable within the hoistway. A plurality of elongated members couple the first mass to the...
US20090255763 Detection Platforms  
Platforms for detecting, identifying and/or designating objects. Platforms according to one embodiment of the invention include an extendable mast connected to a skid via a linkage that allows...
US20070227827 Emergency Device For The Raising Or Lowering Of Elevators Trapped Between Floors  
The invention relates to an emergency device for the raising or lowering of elevators trapped between floors comprising a first geared motor (1) transmitting a rotational movement to the output...
US20090101449 Elevator Drive  
Disclosed are an elevator drive, a clamping arrangement for an elevator machine, a braking mechanism for an elevator system, and a rotor fixture for an elevator machine. The inventive elevator...
US20080185232 LIFT AND METHOD OF MONITORING A LIFT  
A lift drive unit has at least one monitoring device for monitoring unallowed raising of a lift cage. The drive unit has a motor unit and a deflecting unit. If a counterweight supported by the...
US20150166303 SAFETY CIRCUIT AND ELEVATOR SYSTEM  
The safety circuit includes a safety switch or a series circuit of safety switches, which includes an input for an electrical safety circuit signal as well as an output, in which the electrical...
US20090000877 Managing an Encoder Malfunction in an Elevator Drive System  
An encoder failure in an elevator drive system is detected and managed. A velocity of the elevator drive system is provided by an encoder signal (60) and compared with a minimum velocity threshold...
US20050087400 Electric motor, elevator with a car movable by an electric motor, and elevator with a car and with an electric motor for movement of a guide element relative to the car  
An electric motor includes a primary part for producing a traveling magnetic field and a secondary part for providing a static magnetic field, wherein the secondary part and the primary part are...
US20100219022 ELECTRIC MOTOR DRIVE  
The invention relates to a switch arrangement of an electric motor drive (1). The electric motor drive comprises safety switches (3) determined by the safety of the drive, a controlled mechanical...
US20070056804 Lifting device especially a lift or a lifting platform  
The invention relates to a lifting device, especially a lift or a lifting platform, comprising a displacement unit (1, 6, 7, 8) for at least partially displacing a load in a vertical manner. The...
US20100072001 THERMOELECTRIC TEMPERATURE CONTROL WITH CONVECTIVE AIR FLOW FOR COOLING ELEVATOR COMPONENTS  
Components of an elevator system are cooled using natural convective airflow in conjunction with thermoelectric heating and cooling. Rising air within the hoistway is funneled into a cold air duct...
US20110048861 HOIST POSITIONING SYSTEM AND METHOD  
A hoist positioning system includes an accelerometer attached to a hoist, a control unit for processing signals from the accelerometer and comparing the processed signals with reference data to...
US20150060210 CONNECTING DEVICE FOR MEASUREMENT TAPES IN ELEVATOR DEVICES  
With regard to the effect of a settling building, a connecting device for connecting a transmission device for transmitting information, wherein the transmission device is attached to a...
US20100300815 MOVEMENT CONTROL OF AN ELEVATOR SYSTEM  
A determination of the loading state of an elevator system and also a method for determining the loading state of an elevator system is described. The elevator system includes an elevator car and...
US20060249333 Elevator system  
An elevator system (20) including: an elevator car assembly (2); and a cable (7) interconnecting the assembly (2) with a counterweight (8), wherein the cable (7) is coupled to the assembly (2) at...
US20160194180 ELEVATOR CONTROL APPARATUS  
In an elevator control apparatus, a DC-DC converter including a first switching element and a second switching element is configured to generate power for driving an elevator brake by alternately...
US20160039635 POSITIONING APPARATUS, ELEVATOR AND A METHOD FOR DETERMINING THE POSITION OF AN ELEVATOR CAR  
A positioning apparatus for an elevator car, an elevator and also a method for determining the position of an elevator car are disclosed. The positioning apparatus for an elevator car includes a...
US20160039633 LOW PROFILE DRIVE UNIT FOR ELEVATOR SYSTEM  
A drive unit for an elevator system, the drive unit including a multilayer, power circuit board; a first DC link formed in a layer of the power circuit board; a second DC link formed in a layer of...
US20160002005 ELEVATOR SAFETY CIRCUIT  
An elevator safety circuit includes a plurality of relays; safety logic for monitoring status of the plurality of relays, the safety logic generating an output signal in response to the status of...

Matches 1 - 20 out of 20