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| Number | Title | Issue Date |
| 8167094 | Elevator apparatus Provided is an elevator apparatus including a first electromagnetic switch and a second electromagnetic switch provided between a first electromagnetic coil and a second electromagnetic coil of a first brake device and a second brake device and a power source. The b... | 05/01/2012 |
| 8113318 | Elevator machine with integrated brake surface An elevator machine (10) includes a machine shaft (14, 14′) and a sheave (26) that rotates with the machine shaft (14, 14′). A motor (12) selectively rotates the machine shaft (14, 14′). A brake (30) having at l... | 02/14/2012 |
| 7938231 | Elevator apparatus having independent second brake control In an elevator apparatus, a brake control device has a first brake control portion for operating a brake device upon detection of an abnormality to stop a car as an emergency measure, and a second brake control portion for reducing a braking force of the brake devic... | 05/10/2011 |
| 7931127 | Elevator apparatus In an elevator apparatus, a brake device is controlled by a brake control device. The brake control device is capable of performing braking force reduction control for reducing the braking force of the brake device at a time of emergency braking of a car. The brake ... | 04/26/2011 |
| 7918320 | Emergency stop system for elevator An emergency stop system for an elevator includes a state sensor for detecting an operation of a car, a brake device for braking the car, a brake controller for outputting a signal for operating the brake device based on a signal detected by the state sensor, and an... | 04/05/2011 |
| 7896136 | Elevator apparatus with brake control device In an elevator apparatus, a brake device is controlled by a brake control device. The brake control device has a first brake control portion for operating the brake device to stop a car as an emergency measure upon detection of an abnormality, and a second brake con... | 03/01/2011 |
| 7891466 | Elevator apparatus for emergency braking In an elevator apparatus, a brake device stops a car from running. The brake device has a brake control portion for controlling a braking force generated at a time of emergency braking to adjust a deceleration of the car, and a timer circuit for invalidating the con... | 02/22/2011 |
| 7775327 | Method and system for stopping elevators using AC motors driven by static frequency converters The invention relates to methods for stopping elevators especially when using at least one three-phase motor operated by a static frequency converter. According to the invention, a brake relay controls the brake of the motor such that releasing of the brake relay ca... | 08/17/2010 |
| 7770698 | Elevator apparatus In an elevator apparatus, a brake device stops a car from running. The brake device has a power shutoff portion for shutting off a supply of power to a brake opening coil in response to a brake actuation command, and a current adjusting portion for supplying the bra... | 08/10/2010 |
| 7740110 | Elevator brake and brake control circuit A control circuit for controlling an electromechanical elevator brake is disclosed. The control circuit includes at least one brake coil (L1), a direct-voltage source (BR1), a semiconductor switch arrangement, a current measuring unit, at least two sem... | 06/22/2010 |
| 7735610 | Method for controlling a braking unit of a rope transport installation and braking unit The invention relates to a method for controlling a braking unit of a rope transport installation and braking unit. The command signals of a first brake are modulated, until the installation is stopped, by a first modulation circuit integrated in the control unit to... | 06/15/2010 |
| 7730998 | Elevator apparatus In an elevator apparatus, a brake device stops a car from running. The brake device can adjust the magnitude of part of a total braking force generated at a time of emergency braking of the car. As an example of the brake device, the brake device has a nonadjustable... | 06/08/2010 |
| 7717236 | Elevator and elevator brake An elevator may include a hoisting machine, a set of hoisting ropes, a traction sheave, an elevator car, elevator car guide rails, and a brake. The hoisting machine may engage the set of hoisting ropes via the traction sheave in order to move the elevator car along ... | 05/18/2010 |
| 7681693 | Method for performing an elevator rescue run Method for performing an elevator rescue run in an emergency situation, the elevator comprising and elevator car, a counter weight, a rope suspending the car and the counterweight, a drive motor, an emergency brake for stopping the car in an emergency situation, and... | 03/23/2010 |
| 7677362 | Actuator driving method and actuator driving circuit An actuator has a driving first coil and a driving second coil. A capacitor is electrically connected to both the first coil and the second coil through a discharge switch using electric power accumulated in a capacitor which can be selectively supplied. An operatio... | 03/16/2010 |
| 7549515 | Electrical elevator rescue system Elevator (2) comprising a car (4), a counterweight (6), a hoisting rope (8) for suspending the car (4) and the counterweight (6), a drive motor (10), a motor drive unit (26) for supplying the power to the drive... | 06/23/2009 |
| 7374021 | Combined elevator guiding and safety braking device A combined elevator guiding and braking device (30) includes movable members (34) positioned symmetrically about opposite sides of guide rail (24). Guide members (40) are supported on the movable members (34) for following along th... | 05/20/2008 |
| 7357462 | Hydraulic brake system for a wind energy plant The hydraulic brake system comprises a piston/cylinder unit (14) for activating and releasing a brake (12), comprising a volume (16) adapted to have a pressurized working fluid supplied thereto for moving the piston (24) from a braking po... | 04/15/2008 |
| 7353916 | Elevator supervision A method and system for supervising the safety of an elevator having a car driven by a drive within a hoistway wherein a travel parameter (XABS,X″Acc,X′IGB) of the car is sensed and continually compared with a similarly sensed tr... | 04/08/2008 |
| 7353912 | Elevator system The invention relates to an elevator system with at least one shaft, in which at least two cars can be made to travel along a common traveling path, and also with a shaft information system for determining the positions and speeds of the cars, which is connected to ... | 04/08/2008 |
| 7350883 | Detecting elevator brake and other dragging by monitoring motor current Elevator brake or other drag is checked by establishing (10-13) baseline motor currents at plural determined positions as the car is moved up and down both empty and with full load. In a normal run (21), the load is recorded (22) and the ... | 04/01/2008 |
| 7334665 | Interlock wiring communication system for elevators The systems and methods of present invention invoke an elevator communication system for providing communication between a plurality of hall fixture devices and at least one elevator system controller. The elevator communication system includes at least one elevator... | 02/26/2008 |
| 7325657 | Elevator installation and monitoring system for an elevator installation An elevator installation with an elevator car moveable in an elevator hoistway by means a drive unit is controlled by a control unit. Sensors monitor the status of the elevator installation and are each connected via an assigned bus node to a data bus and thereby co... | 02/05/2008 |
| 7273136 | Parking brake device of vehicle A hydraulic parking brake device is selectively switched between a braking state and a non-braking state. A braking force decreases as a pressure in the control oil chamber increases and increases as the pressure in the control oil chamber decreases. The device incl... | 09/25/2007 |
| 7264090 | Elevator employing radio frequency identification devices (RFIDs) An elevator safety chain includes a plurality of passive radio frequency identification devices (RFIDs) (15-18, 22, 34-36 and 63), which are associated, respectively, with hoistway door locks, upper hoistway limits, lower hoistway limits,... | 09/04/2007 |
| 7262571 | Resistive braking module with thermal protection A braking module includes a braking load, an input terminal, an output terminal, and control logic. The input terminal is adapted to receive a motor drive signal. The control logic is adapted to receive a motor enable signal, couple the output terminal to the input ... | 08/28/2007 |
| 7178635 | Elevator control having independent safety circuits An elevator installation with at least one shaft having a plurality of shaft doors is provided. At least two cars disposed one above the other travel up and down in the shaft. Each car has at least one car door. A safety device is provided for blocking the travel of... | 02/20/2007 |
| 7165653 | Elevator gearless traction machine construction A flexible construction for an elevator gearless traction drive machine having a frame that is easily adaptable to traction sheaves of differing widths and diameters while providing the necessary stability for the drive components without an additional structure. Th... | 01/23/2007 |
| 7137484 | Safety system for restraining movement of elevator car when car doors are open A safety system for restraining movement of an elevator car employing a bi-directional safety and an associated car mounted governor with a linkage, between the governor and the elevator car door, including a brake cable and clutch, wherein the governor would operat... | 11/21/2006 |
| 7134528 | Hydraulic elevator with valve for preventing discharge of pressure accumulator and method of controlling same A hydraulic elevator with a pressure accumulator includes a pump fir conveying hydraulic oil between the pressure accumulator and a hydraulic drive, such that the direction of rotation of the pump can be changed. An electrically controlled cylinder line stop valve i... | 11/14/2006 |
| 7117979 | Method for preventing an inadmissibly high speed of the load receiving means of an elevator A method for preventing an inadmissibly high speed of a load receiving unit of an elevator, including the steps of supplying information about an actual position and an actual speed of the load receiving unit in an area of an entire travel way of the load receiving ... | 10/10/2006 |
| 7108105 | Cable lift without a machine room In a cable lift, with a single compartment or shaft (1) for housing a movable cage (2) and an apparatus (3), comprising at least one fixed winch (4) and a counterweight (5), for displacement of the cage (2), the counterweigh... | 09/19/2006 |
| 7090055 | Boat lift brake apparatus A boat lift braking system includes a threaded shaft driven by the boat lift motor. A torsion tube disposed about the shaft carries an interiorly threaded nut that interengages the peripheral threads of the shaft. A rotor is mounted to the nut adjacent a brake pad t... | 08/15/2006 |
| 7073632 | Safety system for restraining movement of elevator car when car doors are open A safety system for an elevator car which will prevent movement of the elevator car should the car drift beyond a predetermined distance from the hoistway sill with the car door in an open position. ... | 07/11/2006 |
| 7014014 | Safety device for monitoring a movable element A safety device for monitoring a movable element, in particular, for elevators, is provided. The safety device includes a speed determination unit for determining the speed of the movable element, a comparator device for comparing a predetermined speed with the dete... | 03/21/2006 |
| 6971481 | Hydraulic elevator with motor controlled hydraulic drive and method for controlling the hydraulic elevator The invention relates to a hydraulic lift comprising a pressure accumulator (17). Hydraulic fluid can be transported between the pressure accumulator (17) and a hydraulic drive (2) by means of a pump (13), the rotational direction of the ... | 12/06/2005 |
| 6957721 | Hydraulic elevator with an accumulator A pump is situated between the hydraulic drive and the accumulator, this pump being driven by a motor and conveying hydraulic oil from the hydraulic drive to the accumulator and vice versa without the presence of control valves which influence the flow of hydraulic ... | 10/25/2005 |
| 6942066 | Elevator apparatus A height of a case body (54) for covering an actuating device (1) is so designed as to be lower than a height of an operator. The actuating device (1) and the case body (54) will not largely project from a rooftop (50) of the build... | 09/13/2005 |
| 6802395 | System for control and deceleration of elevator during emergency braking A system for controlling the braking of an elevator car during an emergency. When there is a power failure or other emergency, a brake is applied to slow the elevator car to a stop in a controlled fashion. By Controlling the braking, the car is stopped in a short ti... | 10/12/2004 |
| 6776263 | Elevator system for the vertical transport of loads in an aircraft The invention is directed to an elevator system for the vertical transport of payloads in an aircraft. The object of the invention, to find a novel possibility for the arrangement of an elevator system for the vertical transport of payloads in an aircraft which perm... | 08/17/2004 |
