Patent application number | Description | Published |
20080202864 | Elevator Load Bearing Assembly Including Different Sized Load Bearing Members - An elevator system ( | 08-28-2008 |
20080210495 | Removable Corrosion Protection on an Elevator Guide Rail - A guide rail for an elevator system includes a plastic layer covering over at least guiding surfaces of a blade portion. The plastic layer is applied to protect selected surfaces during shipment and storage, for example. At an appropriate time during installation, the plastic layer is removable to expose the protected guiding surfaces. | 09-04-2008 |
20090120724 | ELEVATOR SYSTEM WITH MULTIPLE CARS IN A HOISTWAY - An elevator system ( | 05-14-2009 |
20090194370 | PERMANENT MAGNET ELEVATOR DISK BRAKE - A brake assembly ( | 08-06-2009 |
20100084223 | ELEVATOR LOAD BEARING ASSEMBLY HAVING AN INITIAL FACTOR OF SAFETY BASED UPON A DESIRED LIFE OF SERVICE - A load bearing assembly ( | 04-08-2010 |
20100178150 | ELEVATOR BELT INSTALLATION ASSEMBLY AND METHOD OF INSTALLING A BELT - A tool for hoisting a coated steel belt of an elevator system that includes a back plate to which a plurality of clamp assemblies is mounted. Each of the clamp assemblies includes a clamp plate biased by a biasing member to resiliently secure each of the belts. | 07-15-2010 |
20100236869 | ELEVATOR LOAD BEARING MEMBER - A load bearing member ( | 09-23-2010 |
20110081589 | SWIRL CHAMBER FOR A FUEL CELL COOLING MANIFOLD - A fuel cell manifold holding pressurized cooling fluid is attached to a plurality of cells. A swirl chamber communicating cooling fluid from the manifold to the cells slows the speed of the cooling fluid and lowers its pressure as it enters a fuel cell cooling path. | 04-07-2011 |
20110114908 | WEAR AND CORROSION RESISTANT COATING HAVING A ROUGHENED SURFACE - An exemplary method of making a first component for contacting another component includes applying a wear and corrosion resistant material layer onto a surface of the first component. The wear and corrosion resistant material layer is then roughened subsequent to having been applied to the surface. A component comprises an exemplary elevator sheave that includes a metallic body having a sheave surface that is adapted to contact an elevator tension member. A corrosion resistant material layer on the sheave surface has a thickness that is greater than about 5 microns. | 05-19-2011 |
20110233029 | MOVING SKIRT MECHANISM FOR CHAIN DRIVEN PASSENGER CONVEYORS - A tread plate assembly for a passenger conveyer system includes a first tread plate projecting from a first skirt plate, a second tread plate projecting from a second skirt plate and arranged adjacent the first tread plate, a link pivotally connected to the first skirt plate and slidably and pivotally connected to the second skirt plate, and a bridge member connected to the link and arranged between the first skirt plate and the second skirt plate to form a moving skirt of the passenger conveyer system. | 09-29-2011 |
20110315487 | ARRANGEMENT OF ELEVATOR MACHINES | 12-29-2011 |
20120007465 | ELECTRIC MACHINE HAVING MULTIDIRECTIONAL SKEW - An electric machine includes a rotor rotatable about a central axis. The rotor includes at least one rotor element having a first element edge. A stator includes a stator face facing the rotor and a plurality of stator slots. Each stator slot has at least one stator slot edge located at the stator face. A first edge portion of the at least one stator slot edge is oriented nonparallel to the first element edge in a first direction and a second edge portion of the at least one stator slot edge is oriented nonparallel to the first element edge in a second direction. | 01-12-2012 |
20120111670 | ENERGY SAVINGS WITH OPTIMIZED MOTION PROFILES - An elevator system includes a car, a hoist motor for elevating and lowering the car, a brake for limiting car movement, an input device for selecting a destination for a run, and a controller. The controller receives a command from the input device and controls operation of the hoist motor and the brake. The controller has a loss reduction mode wherein the controller selects a velocity profile for the run that varies according to car load, run direction, and run distance to reduce a combined set of energy losses for the run. | 05-10-2012 |
20120125720 | Rope Sway Mitigation Via Rope Tension Adjustment - A rope sway mitigation device for an elevator system includes a rope tension adjuster connected to a plurality of ropes operably connected to an elevator car. The rope tension adjuster is configured to adjust a tension of at least one individual rope of the plurality of ropes thereby mitigating excitation of natural frequencies of the plurality of ropes during sway of at least one component of the elevator system and or a building in which the elevator system is located. Further disclosed is an elevator system including a rope sway mitigation device and a method of rope sway mitigation in an elevator system. | 05-24-2012 |
20120308386 | Chain Drive Train for a Wind Turbine - A distributed chain drive train for a wind turbine is disclosed. The chain drive train may include a first stage chain drive adapted to receive mechanical energy from a main shaft of a wind turbine and a second stage chain drive adapted to receive rotational energy from the first stage chain drive and transmitting the rotational energy to one or more generators of the wind turbine. The chain drives are resilient to structural deflections that may misalign the sprockets and chains, resulting in a long lasting system. | 12-06-2012 |
20120308387 | Hybrid Drive Train for a Wind Turbine - A distributed hybrid drive train for a wind turbine is disclosed. The drive train may include a first stage chain drive adapted to receive mechanical energy from a main shaft of a wind turbine and a second stage gearbox adapted to receive rotational mechanical energy from the first stage chain drive and transmitting the rotational mechanical energy to one or more generators of the wind turbine. | 12-06-2012 |
20130062147 | SHEET METAL GUIDE RAIL FOR AN ELEVATOR SYSTEM - A guide rail ( | 03-14-2013 |
20130162266 | Resistance-Based Monitoring System and Method - A monitoring system for a support structure is provided. The monitoring system may include a resistance circuit coupled to the support structure, and an interface circuit coupled to the resistance circuit. The resistance circuit may include a first set of resistors and a second set of resistors, wherein the second set of resistors is configured to provide a reference voltage. The interface circuit may include one or more comparators, wherein each comparator is configured to compare a voltage across at least one of the resistors with the reference voltage and generate an output signal corresponding to the comparison. The interface circuit may be configured to continuously monitor an effective resistance of the support structure based on the output signals. | 06-27-2013 |
20130207668 | Simplified Resistance Based Belt Inspection - A resistance circuit for monitoring a support structure is provided. The resistance circuit may include a first set of resistors disposed at a belt-side and a second set of resistors disposed at a monitor-side. The first set of resistors may be configured to indicate one or more voltages thereacross corresponding to an effective resistance of the support structure. The first set of resistors may include at least one temperature-dependent resistor. The second set of resistors may be configured to indicate one or more voltages thereacross corresponding to an initial effective resistance of the support structure. The second set of resistors may include at least one switched resistor having an adjustable resistance capable of selectively approximating the initial effective resistance. | 08-15-2013 |
20130277152 | FRICTIONAL DAMPER FOR REDUCING ELEVATOR CAR MOVEMENT - An exemplary device for use in an elevator system includes at least one friction member that is selectively moveable into a damping position in which the friction member is useful to damp movement of an elevator car associated with the device. A solenoid actuator has an armature that is situated for vertical movement. The armature moves upward when the solenoid is energized to move the friction member into the damping position. The armature mass urges the armature in a downward vertical direction causing the friction member to move out of the damping position when the solenoid is not energized. | 10-24-2013 |
20130327596 | ELEVATOR SYSTEM INCLUDING A 4:1 ROPING ARRANGEMENT - An exemplary elevator system includes an elevator car. At least one guiderail guides movement of the elevator car. The guiderail has a length in a direction of movement of the elevator car and a depth generally perpendicular to the length. A plurality of flat belts are situated relative to the elevator car such that movement of the flat belts for causing movement of the elevator car is approximately four times a corresponding movement of the elevator car. A plurality of sheaves is situated for directing the flat belts as the belts at least partially wrap around the sheaves. The plurality of sheaves remains fixed near one end of the guide rail. The plurality of sheaves rotate about coaxially aligned axes and have a collective width along the axes that is no greater than the depth of the guiderail. | 12-12-2013 |
20140008153 | ELEVATOR LOAD BEARING MEMBER - A load bearing member for supporting an elevator car has a plurality of tension members that bear the weight of the elevator car. The plurality of tension members extends along a length. An outer cover at least partially covers the plurality of tension members and has a first surface and a second surface. | 01-09-2014 |
20140008157 | ELEVATOR BRAKING SYSTEM - An elevator system includes one or more rails fixed in a hoistway and an elevator car configured to move through the hoistway along the one or more rails. The system includes one or more braking systems having one more braking surfaces secured to the elevator car and frictionally engageable with one or more rails of the elevator system. One or more actuators are operably connected to the one or more braking surfaces configured to urge engagement and/or disengagement of the one or more braking surfaces with the rail to stop and/or hold the elevator car during operation of the elevator system. | 01-09-2014 |
20140069746 | Non-Linear Stiffness Roller Assembly - A roller apparatus is provided. The roller apparatus may include a bearing wheel configured to rotatably couple the roller apparatus to a roller shaft, and a resilient member radially disposed about the bearing wheel and configured to contact a guiderail at different magnitudes of loads. The resilient member may include a first section of a first diameter and a second section of a second diameter. The first section may be caused to deflect in response to loads within a first load range, while the second section may be caused to deflect in response to loads within a second load range. The resilient member may exhibit a stepwise increase in stiffness with a gradual increase in load. | 03-13-2014 |
20140238783 | Guide Rail for Elevator - A method of making a guide rail for an elevator system method comprising the steps of: providing a guide rail; applying a protective layer to the guide rail for corrosion protection; and removing at least a portion of the protective layer. A sheet metal guide rail for an elevator system comprises a base portion; and a blade portion extending from the base portion. The blade portion includes: a first section for engaging a guiding device and/or a safety of the elevator system; and a second section for engaging a guiding device and/or a safety of the elevator system. The second section contacts the first section. The sheet metal guide rail could be made using the aforementioned method. | 08-28-2014 |