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| Number | Title | Issue Date |
| 8069959 | Elevator active suspension utilizing respulsive magnetic force An elevator includes a car follower associated with each of a pair of guide rails, and carrying electromagnets which are spaced from electromagnets on an elevator car. The electromagnets on the car and car follower create a repulsive force tending to center the car ... | 12/06/2011 |
| 7823707 | Guide device for an elevator, elevator with such a guide device, and method for operating such an elevator A guide device for an elevator car has a guide shoe that is displaceable by a linear guide that is arranged on the elevator car. Should the elevator car in an extreme situation travel beyond the uppermost floor, the guide shoe is arrested by a projecting console, an... | 11/02/2010 |
| 7523810 | Elevator car guiding device for an elevator without machine room The invention relates to an Elevator car (3) guiding device for an elevator without a machine room and with a drive motor (5) mounted on a top side wall of the shaft, wherein the elevator car (3) is guided by means of opposed top and bottom guid... | 04/28/2009 |
| 7413057 | Vertical transport systems and methods The invention provides for a transport system and method of using the transport system. The transport system may include a transport track; and a platform assembly that transports along the transport track, the platform assembly including (1) a cargo platform; and (... | 08/19/2008 |
| 7314118 | Equipment and method for vibration damping of a lift cage An improved equipment and method for reducing vibrations of a lift cage is intended for use in lifts of the type having a lift cage is intended for use in lifts of the type having a lift cage guided along rails in which a sensor for detecting positional changes of t... | 01/01/2008 |
| 7314119 | Equipment for vibration damping of a lift cage Equipment for reducing vibrations of a lift cage guided at rails comprises a plurality of guide elements for guiding the lift cage along the rails, a sensor for detecting positional changes of the lift cage and/or of accelerations occurring at the lift cage, an actu... | 01/01/2008 |
| 7258204 | Guide device for guidance of a load carrier of an elevator installation A guide device guides a load carrier of an elevator installation along a guide surface and comprises a guide element contacting the guide surface and connected by a connecting element with the load carrier such that the guide element is movable relative to the load ... | 08/21/2007 |
| 7239107 | Flexure stage In one embodiment, a flexure stage comprises a base, a stage, a positioning mechanism, and a control device. The base and stage have first and second portions that are spaced apart from each other. The positioning mechanism is coupled between the base and the stage.... | 07/03/2007 |
| 7204379 | Crane A crane has at least one telescopic crane arm with at least two sliding arms that are moveable against each other. At least one gliding element, which is housed in a frame in a detached and unfastened manner, is arranged between the sliding arms. The gliding element... | 04/17/2007 |
| 6991069 | Cable elevator with a drive plate A cable elevator includes a car which travels on first parallel guides and a counterweight which travels on second parallel guides, the guides being located in a respective first and second parallel planes. Drive machinery is arranged on an engine mount between the ... | 01/31/2006 |
| 6786304 | Guide for elevator A guide device for an elevator in which a pair of corresponding actuators are controlled by controllers in accordance with information from acceleration sensors, and the force with which guide members are pressed against guide rails is adjusted. Each controller incl... | 09/07/2004 |
| 6676233 | Storage lift A storage lift includes two vertically extending tracks mounted to a wall surface such as a garage wall. The tracks guide associated sliding members through vertical motion up and down adjacent the wall. The sliding members are in turn hinged to a platfor... | 01/13/2004 |
| 6510925 | Elevator guide shoe Elevator guide shoe for guiding an elevator car along guide rails in an elevator shaft, said guide shoe comprising a supporting frame (2) attached to the elevator car (1) and guides (4) resting against a guide rail (3). According to the invention, the gui... | 01/28/2003 |
| 6474449 | Elevator and guide device for elevator In an elevator, guide devices are attached to the elevator and include a guide lever driven in a plane; a guide element attached to the guide lever; a stationary actuator part fixed to a support member; and a moving actuator part fixed to the guide lever,... | 11/05/2002 |
| 6431322 | Plunger guide for a telescopic jack in a hydraulic elevator A plunger guide for a telescopic jack in a hydraulic elevator includes a crenelated guide rail with a top surface, two opposing side surfaces which are perpendicular to the top surface, and first and second flanged projections respectively projecting from... | 08/13/2002 |
| 6408987 | Elevator guidance device A moveable body (16) is guided in non-contacting fashion by exercising control by a guidance control unit (C1) constituted by zero power-control means (unit) (L2) and stabilization unit (L1) of a magnetic levitation system (C2) comprising guide rails (14)... | 06/25/2002 |
| 6401872 | Active guide system for elevator cage A guide system for an elevator, including a movable unit configured to move, such as,ascend and descend, along a guide rail, a beam projector configured to form an optical path of a light parallel to a moving direction of the movable unit, a position dete... | 06/11/2002 |
| 6345698 | Simplified roller guide A roller guide for improving the movement of an elevator car on T-shaped guide rails. The roller has first and second wheels rotatably mounted on an elevator car and spring biased to rollably engage the sides of the nose portion of a T-shaped guide rail. ... | 02/12/2002 |
| 6062347 | Resin stop assembly for roller guides An elevator system 10 includes an elevator car 12 with a plurality of roller guide assemblies 20 attached hereto. The roller guide assemblies 20 guide the elevator car 12 vertically within a hoistway along a plurality of guide rails 16. Each roller guide ... | 05/16/2000 |
| 6050370 | Guide roller apparatus for elevator system A guide roller apparatus for an elevator system includes a flat frame for fixing to each corner of the elevator car, and a lever having a lower portion hingedly connected to an upper portion of the frame and an upper portion rotatably connected to a rolle... | 04/18/2000 |
| 5950771 | Roller guide friction damper An elevator system includes an elevator car with a plurality of roller guide assemblies attached thereto. The roller guide assemblies guide the elevator car vertically within a hoistway along a plurality of guide rails. Each roller guide assembly includes... | 09/14/1999 |
| 5896949 | Apparatus and method for the damping of oscillations in an elevator car An apparatus and method are disclosed for reducing oscillations of an elevator car occurring transverse to the direction of travel. The elevator car is guided by rails and includes guide elements with a predefined range of motion. The apparatus includes a... | 04/27/1999 |
| 5866861 | Elevator active guidance system having a model-based multi-input multi-output controller In an elevator active guidance system, in order to avoid the action of one actuator (23) from interfering with the action of another, a controller (21) is provided that uses a force law based on a model of the elevator (40), and uses information from all ... | 02/02/1999 |
| 5864102 | Dual magnet controller for an elevator active roller guide A dual magnet controller, as part of an active roller guide (ARG) controller, that requires that each controlled actuator produce at least a minimum idling force, rather than carrying a minimum idling current. The dual magnet controller for a particular c... | 01/26/1999 |
| 5824976 | Method and apparatus for sensing fault conditions for an elevator active roller guide A fault sensor to be used with a controller as part of an active roller guide (ARG), the fault sensor disabling the ARG if it determines that any pair of current-force magnitudes for any of the ARG actuators is outside of a predetermined acceptable operat... | 10/20/1998 |
| 5814774 | Elevator system having a force-estimation or position-scheduled current command controller The invention provides an elevator system for controlling movement of an elevator car with respect to guide rails in an elevator hoistway, having a force-estimation or position-scheduled current command controller and a magnet driver circuit without the n... | 09/29/1998 |
| 5765663 | Methods and apparatus for preventing undue wear of elevator actuators Methods and apparatus are provided which can reduce life cycle costs associated with wear on active horizontal suspension actuators for elevators and also reduce cost of such actuators. The method includes discriminating lateral movement of elevator due t... | 06/16/1998 |
| 5749444 | Contactless slide guide for elevators A contactless slide guide or magnetic bearing for guiding an elevator vertically along a hoistway rail has one or more electromagnet actuators spring-mounted within a yoke attached to the elevator car at a corner thereof. The positioning of the electromag... | 05/12/1998 |
| 5652414 | Elevator active guidance system having a coordinated controller The invention features an elevator system including an elevator car (12) having a frame that operates on guide rails of an elevator shaft of a building. The elevator car (12) has a rigid body motion in a global coordination system (X, Y, Z) kinematically ... | 07/29/1997 |
| 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 primary winding disposed only on a first side of said movable me... | 08/20/1996 |
| 5401103 | Guide seat for an elevator car for dampening of structure-borne noise Guide seat for an elevator car, which supports a guide moving along a guide rail (6). The guide seat comprises a fixing part by which the guide seat is attached to the car structure (2), and a base plate (12,26,33) on which a guide structure is mounted. T... | 03/28/1995 |
| 5379864 | Magnetic system for elevator car lateral suspension An electromagnet actuator has an E-shaped core for coupling magnetic flux between the core and a blade of a hoistway rail. A pair of coils wound on the core provide the flux in such a way as to produce both side-to-side and front-to-back forces that can b... | 01/10/1995 |
| 5321217 | Apparatus and method for controlling an elevator horizontal suspension A method and apparatus for counteracting a disturbing force acting on an elevator platform in a hoistway comprises sensing the acceleration and position of the platform and applying a force between the platform and the hoistway in proportion to the magnit... | 06/14/1994 |
| 5213172 | Climbing robot, movable along a trestle structure, particularly of a pole for high-voltage overhead electric lines A robot is apt to climb along a trestle structure, particularly the trestle of a pole for high-voltage overhead electric lines, in order to carry work tools from the base to the top of the pole. The robot includes a main support body, at least one slide m... | 05/25/1993 |
| 5199533 | Lift truck A manually movable lift truck including a base and a column, the column including a steel post welded on the steel base, and a steel sleeve slideable on the post. Flat plastic slide pads in the form of sheets are interposed between the post and sleeve, an... | 04/06/1993 |
| 5193651 | Elevator apparatus An elevator apparatus includes guide devices having guide members engaged with a pair of guide rails so as to guide a car along the guide rails in a manner to hold the car in a proper position. Each of the guide devices includes a resilient support member... | 03/16/1993 |
| 5183980 | Linear motor elevator device with a null-flux position adjustment A linear motor elevator includes: a multitude of primary side coils mounted on the hoist way along the whole hoist path, and vertical columns of permanent magnets constituting the secondary side magnets mounted on the elevator car. The polarity of the per... | 02/02/1993 |
| 5141082 | Linear motor elevator system A linear motor elevation system comprising an elongated magnetic induction member (21) mounted along the hoistway. The induction member (21) has a plurality of magnetic poles (21a) disposed at equal intervals along the hoistway so that they face toward th... | 08/25/1992 |
| 5086881 | Elevator driven by a flat linear motor An elevator is driven by a linear motor having an elongated flat secondary element disposed in parallel to a hoistway and extending along the length thereof, the secondary element being supported by an edge portion thereof by a support. The linear motor h... | 02/11/1992 |
| 5083893 | Lifting device for water container A lifting device operated by a hand crank is described to hoist a weighted container, such as a bottle of drinking water, to the upper level of a water dispenser. When a container of water is placed on the device for upward movement, the device will preve... | 01/28/1992 |
