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| Number | Title | Issue Date |
| 8136635 | Method and system for maintaining distance between elevator cars in an elevator system with multiple cars in a single hoistway Controlling the movement of elevator cars (22, 24) within a single hoistway (26) prevents the cars from becoming too close while servicing assigned stops. Example control techniques include controlling door operation of at least one of the elevator car... | 03/20/2012 |
| 8132652 | Elevator system including plurality of elevators operating in same hoistway An elevator system includes at least one shuttle elevator and at least two local elevators, the elevator cars of which are arranged to travel in the same elevator hoistway such that they can serve at least one shared transfer floor of a transfer level. The control s... | 03/13/2012 |
| 8100230 | Elevator system with virtual landing An elevator system includes at least two independently operable elevator cars in an elevator shaft. The elevator system includes a virtual landing. ... | 01/24/2012 |
| 8087497 | Compensation in an elevator system having multiple cars within a single hoistway An elevator system (20) includes multiple elevator cars (22, 32) within a hoistway (28). A first compensation member (40) is associated with a first counterweight (24). A second compensation member (50) is associated with a ... | 01/03/2012 |
| 8020668 | Operating less than all of multiple cars in a hoistway following communication failure between some or all cars A plurality of cars (A-C) traveling in the same hoistway (10) send communication check codes (27, 35, 70, 77) to each other over a first communication channel, and if a response is not received (30, 37, 73, 80) within a predetermined time (32... | 09/20/2011 |
| 7987947 | Call indicator provided near elevator car currently assigned to the call Destination calls entered by means of buttons (21-29) are each given a designation unique to the car and pick-up floor for that call and other calls to be serviced therewith, such as a letter (A-E), which is different from any other outstanding calls. ... | 08/02/2011 |
| 7980362 | Safety equipment for preventing an elevator car collision with an object Safety equipment for an elevator installation with an upper elevator car and a lower elevator car, which cars are both movable substantially independently along a vertical direction in a common elevator shaft of the elevator installation includes a first electro-opt... | 07/19/2011 |
| 7918319 | Elevator apparatus In an elevator apparatus, a second car is disposed below a first car. The second car is suspended within a hoistway by a second suspension body and a third suspension body to be raised/lowered by a second hoisting machine. The second suspension body has a second car... | 04/05/2011 |
| 7913818 | Elevator installation in a building with at least one transfer floor An elevator installation is arranged in a building with at least two elevators, wherein the building is divided into building zones and each elevator has at least one elevator car, each elevator car is independently movable by an associated drive in an associated ca... | 03/29/2011 |
| 7882934 | Elevator installation in a building with at least one transfer floor An elevator installation is arranged in a building with at least two elevators, wherein the building is divided into building zones and each elevator has at least one elevator car, each elevator car is independently movable by an associated drive in an associated ca... | 02/08/2011 |
| 7857103 | Elevator system An elevator system has a lower elevator car, an upper elevator car and a common counterweight in an elevator shaft. A support device has a first support strand and a second support strand. Each of the elevator cars is connected with the two support strands. In addit... | 12/28/2010 |
| 7857104 | Method of preventing collision of two elevator cars A method of preventing a collision of two elevator cars of an elevator installation, which cars move substantially independently of one another in a common shaft, and an elevator installation includes a collision protection system that produces a retardation of each... | 12/28/2010 |
| 7841450 | Twin elevator systems An elevator system comprises at least two independently operable elevator cars in each of a plurality of elevator shafts within a building. The elevator system comprises at least one first elevator shaft having a lower first and a lower second region, where a first ... | 11/30/2010 |
| 7828120 | Method of modernizing an elevator installation A method of modernizing an elevator installation that comprises a first elevator car movable in a shaft by a first drive includes installing at least one second drive without changing the first drive. In addition, at least one second elevator car is installed in the... | 11/09/2010 |
| 7819228 | Collison prevention in hoistway with two elevator cars An elevator system (8) includes a hoistway (9) having a plurality of cars (10, 11) traveling therein, the hoistway includes a steel tape (14), each car having two tape readers (20, 21; 22, 23) which feed corresponding position dete... | 10/26/2010 |
| 7784588 | Calls assigned to one of two cars in a hoistway to minimize delay imposed on either car A method of assigning destination calls to cars (A-F) in an elevator system (20) having a plurality of hoistways (21-23) in which there is more than one car in each hoistway includes determining (33) the time for each car to respond to th... | 08/31/2010 |
| 7779967 | Method of operating an elevator installation, an elevator installation operable by this method and safety equipment for this elevator installation An elevator installation with at least one upper elevator car and at least one lower elevator car includes a first electromechanical switching mechanism mounted on the upper car and having a weight fastened at a downwardly extending elongate run, the run being held ... | 08/24/2010 |
| 7762376 | Elevator with two elevator cars which are disposed one above the other in a shaft An elevator has at least two elevator cars, which are disposed one above the other in a shaft, which cars are vertically movable and which each have a drive, a counterweight and a traction device, wherein one drive is fixed at a first shaft wall and a second drive i... | 07/27/2010 |
| 7753174 | Elevator installation The invention relates to an elevator installation with a number of cars in a shaft, with a second car disposed underneath a first car. Associated with each car is a drive with a traction sheave and at least one cable strand, which is led over the traction sheave and... | 07/13/2010 |
| 7661513 | Dual-car elevator system with common counterweight An elevator system has a lower elevator car, an upper elevator car and a counterweight. A first drive drives the lower elevator car and a second drive drives the upper elevator car. Two parallelly extending guide rails lying in the region of a vertical center plane ... | 02/16/2010 |
| 7650966 | Elevator system including multiple cars in a hoistway, destination entry control and parking positions An elevator system (20) includes multiple cars (22, 24) within a hoistway (40). Parking positions (72, 74) are provided outside the range of passenger service levels (70). A destination entry strategy is used by a controller (60... | 01/26/2010 |
| 7650967 | Communicating to elevator passengers re car movement to pit or overhead One of a plurality of cars (17, 18) traveling in a hoistway (10) of an elevator system (9) may be diverted to the hoistway overhead (31) or pit (36) to enable another of the cars to gain access to a floor near or at a terminal floo... | 01/26/2010 |
| 7624845 | Method and apparatus for adjusting the distance between the cars of a double-deck elevator A method and apparatus adjust the inter-car distance in a double-deck elevator provided with hoisting ropes, in which elevator the hoisting ropes move a car frame supporting the elevator cars along guide rails. The vertical inter-car distance between the elevator ca... | 12/01/2009 |
| 7621376 | Elevator installation and method for operating a vertical elevator shafts arranged adjacent to one another An elevator installation has at least three vertical elevator shafts arranged adjacent to one another, at least one boarding zone and a plurality of individually movable elevator cars. At least two directly adjacent changeover zones are provided in the region of the... | 11/24/2009 |
| 7537089 | Elevator installation with individually movable elevator cars and method for operating such an elevator installation An elevator installation has a vertical elevator hoistway and a plurality of elevator cars individually movable therein. An elevator control system readies at least two of the elevator cars in the hoistway in an area of two mutually adjacent entrance areas. Thus, si... | 05/26/2009 |
| 7487860 | Controller of one-shaft multi-car system elevator It is an object of the present invention to provide a control apparatus for a one-shaft multi-car system elevator in which a plurality of cars operate in one shaft, the control device being capable of efficient group control while avoiding collisions and minimizing ... | 02/10/2009 |
| 7467691 | Elevator installation, a method of operating this elevator installation, and method of modernizing an elevator installation An elevator installation for conveying persons/goods, a method for operating the elevator installation and to a method for modernizing an elevator installation. The elevator installation includes at least two cages arranged one above the other in a vertical travel d... | 12/23/2008 |
| 7392883 | Elevator group control system An elevator group control apparatus collectively controls an elevator system where at least two cars can travel in each shaft independently of each other. The apparatus has a destination floor registration device installed at each hall for passengers to register des... | 07/01/2008 |
| 7392884 | Elevator group management controller An elevator group supervisory control apparatus is obtained which can achieve efficient group supervisory control while preventing or reducing the possibility of collision and the safe stopping of an upper car and a lower car in one and the same shaft as much as pos... | 07/01/2008 |
| 7389857 | Elevator group control system An elevator group control apparatus to control an elevator system in which an upper car and a lower car serve in a single shaft and go up and down independently. If a new destination call is registered, a car travel range calculator provisionally assigns a car to th... | 06/24/2008 |
| 7360628 | Lift truck for tires with mechanical means of gripping and transporting a vertically divided load for better visibility A “forward facing” lift truck (1) for transporting a vertical stack (2) of tires (3) located in front of the lift truck. The lift truck includes grasping means (4) mounted on the frame or “mast” (11) of the lift truck and a... | 04/22/2008 |
| 7360629 | Zonally operated elevator installation and method An elevator installation for zonal operation in a building, a method for zonal operation of such an elevator installation and method for modernization of an existing elevator installation, in which the building is divided into several zones. The elevator installatio... | 04/22/2008 |
| 7357226 | Elevator system with multiple cars in the same hoistway The elevator system of this present invention for multistory buildings includes at least one elevator shaft, each of which having a plurality of elevator units and at least one interlocking means, and an elevator control system. The elevator unit includes an elevato... | 04/15/2008 |
| 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 |
| 7353914 | Safety system for an elevator A safety system for an elevator installation for the transport of persons/goods in a building and a method for operating an elevator installation with a safety system. Several cages are moved one above the other in a shaft. Each cage is moved by a drive. At least on... | 04/08/2008 |
| 7350625 | Shaft door monitoring system for an elevator installation A shaft monitoring system for an elevator installation includes a contactless sensor enabling recognition from the elevator car whether a shaft door lock and a shaft door leaf are in a correct locked setting. A securing device mechanically secures the shaft door loc... | 04/01/2008 |
| 7331424 | Elevator apparatus In an elevator apparatus, multiple cars are raised and lowered within a hoistway. The cars within the hoistway are adjacent to each other when located at the same height. If at least one of the cars is defined as a first car and a car adjacent to the first car is de... | 02/19/2008 |
| 7322446 | Elevator call assignment indications for multiple elevators in each of a plurality of elevator hoistways A plurality of hoistways (11, 12) in a building serving a plurality of floors utilizes destination call entry panels (22, 22A) having buttons (23) with which passengers can enter destination call requests. A display (26, 26a) adjac... | 01/29/2008 |
| 7316294 | Elevator The invention relates to an elevator and a method for adjusting the inter-car distance in an elevator which comprises two or more elevator cars coupled to each other so as to be movable together in an elevator shaft, and in which these elevator cars are at least par... | 01/08/2008 |
| 7287624 | Double deck elevator A double deck elevator comprising an upper cage and a lower cage vertically movable together in a hositway, wherein a space between the upper cage and the lower cage is covered by covers. The covers guide airflow flowing around the space to reduce air turbulence noi... | 10/30/2007 |
