| OTIS ELEVATOR COMPANY Patent applications |
| Patent application number | Title | Published |
|---|
| 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 |
| 20120112577 | ELEVATOR MACHINE WITH EXTERNAL ROTOR AND MOTOR WITHIN TRACTION SHEAVE - A drive machine ( | 05-10-2012 |
| 20120111695 | BALUSTRADE AND DECK MOUNTING ASSEMBLY FOR A PASSENGER CONVEYOR - A balustrade assembly includes a decking panel and a skirt panel that are attached to one another and to a balustrade support structure without fasteners. A positioning device included in the balustrade assembly varies the position of the skirt panel relative to moving steps in two directions by pushing against stationary components that are a part of or otherwise connected to a frame of a passenger conveyor. A balustrade support employed in the assembly reduces material and manufacturing costs and is adjustable to vary the height of a balustrade panel and handrails in a passenger conveyor. | 05-10-2012 |
| 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 |
| 20120103756 | Signal Correlation For Missing Step Detection In Conveyors - A device and method for detecting a misaligned or missing step of a conveyor are disclosed. The missing step detector includes various sensors for detecting the drive speed of the conveyor and for detecting the presence of pallets or steps. The sensor output signals are correlated to determine fixed values characteristic of the specific conveyor in question. Using the fixed values as reference, the missing step detector is able to effectively monitor the conveyor for misaligned or missing steps independent of conveyor speed and time. | 05-03-2012 |
| 20120103732 | Elevator Governor System - A governor system for an elevator is disclosed. The governor includes a shaft horizontally extending from a sheave of the governor system. A base, spring, and slider are mounted on the shaft with linkages extending from the base of the sheave to at least one flyweight. The spring and flyweights are sized such that centrifugal force will be sufficient to overcome the biasing force of the spring upon the sheave reaching a certain rotational speed. Overspeed sensors and mechanical switches are positioned proximate the flyweights and flyweights plates such that upon such motion of the flyweights, the governor system is triggered, thereby slowing and ultimately stopping the elevator. The governor system has a greatly reduced space requirement compared to previous governors, as well as a reduced likelihood of false trips due to acceleration or deceleration of the car. | 05-03-2012 |
| 20120097487 | Building Sway Resistant Elevator Derailment Detection System - An elevator derailment detection system ( | 04-26-2012 |
| 20120085618 | RELEASABLE STEP LOCKING SYSTEM - A passenger conveyor includes a releasable step locking system having a clamp, a lock, and an actuator. The clamp couples a step to a propulsion mechanism, the lock secures the coupling between the step and the propulsion mechanism, and the actuator changes the state of the lock so that the propulsion mechanism can be either engaged or disengaged from the step. | 04-12-2012 |
| 20120085593 | GRAVITY DRIVEN START PHASE IN POWER LIMITED ELEVATOR RESCUE OPERATION - When main power to an elevator system | 04-12-2012 |
| 20120073933 | ESCALATOR DUAL SOLENOID MAIN DRIVE SHAFT BRAKE - A main drive shaft brake for a passenger conveyor includes a braking element, an actuator, and a counter-actuator. The actuator is de-energized to release the braking element and halt operation of the passenger conveyor during an abnormal or emergency condition. An energized counter-actuator permits release of the braking element but, when de-energized, inhibits release of the braking element by the actuator to prevent unintentional release of the braking element caused by, for example, an accidental loss of power to the actuator. | 03-29-2012 |
| 20120066356 | SYSTEM AND METHOD FOR AUTOMATICALLY ADDRESSNG DEVICES ON A COMMUNICATION NETWORK - A system and method automatically assigns unique addresses to devices connected on a communication bus based on the parameters measured by each device. Assignment of addresses may be provided centrally by a controller or may be distributed, in which each device negotiates with other devices to assign unique addresses to each device. | 03-15-2012 |
| 20120043180 | Automatic Adjustment of Parameters for Safety Device - A device and method for automatically adjusting safety control parameters of a conveyor are disclosed. The safety device may include various sensors and a safety control module. The safety control module may be preprogrammed with a learn-run method configured to learn operational and mechanical characteristics of a conveyor, validate the operational characteristics of the conveyor based on predefined nominal specifications, and determine a safety function with calibrated safety control parameters by which to monitor conveyor operation. | 02-23-2012 |
| 20120018256 | PASSIVE DETECTION OF PERSONS IN ELEVATOR HOISTWAY - Passive infrared detectors ( | 01-26-2012 |
| 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 |
| 20120006647 | ADJUSTABLE BRACKET FOR STEP FLANGE COVER - A connection between step flange covers | 01-12-2012 |
| 20120006626 | ELEVATOR SYSTEM INCLUDING MULTIPLE CARS WITHIN A SINGLE HOISTWAY - An elevator system includes first and second elevator cars and counterweights within a hoistway. A first load bearing assembly supports the first elevator car and counterweight and follows a path between a first end supported in a fixed position, at least partially around a first car sheave, at least partially around another sheave separate from the first elevator car and counterweight, at least partially around a first counterweight sheave, and to a second end supported in a fixed position. A second load bearing assembly supports the second elevator car and counterweight and follows a path between a first end supported in a fixed position, at least partially around two second car sheaves, at least partially around another sheave separate from the second elevator car and counterweight, at least partially around a second counterweight sheave to a second end supported in a fixed position. | 01-12-2012 |
| 20120000732 | ELECTROMAGNETIC SAFETY TRIGGER - An electromagnetic safety trigger | 01-05-2012 |
| 20120000731 | ELEVATOR OVER-ACCELERATION AND OVER-SPEED PROTECTION SYSTEM - An elevator system | 01-05-2012 |
| 20120000729 | OVER-ACCELERATION AND OVER-SPEED DETECTION AND PROCESSING SYSTEM - An elevator system | 01-05-2012 |
| 20110318497 | HOISTWAY SHEAVE RESURFACING - A method of and system for repairing the sheaves ( | 12-29-2011 |
| 20110315508 | MODULAR CHAIN NEWEL WITH STANDARD BEARING - A roller bearing and newel guide assembly ( | 12-29-2011 |
| 20110315487 | ARRANGEMENT OF ELEVATOR MACHINES | 12-29-2011 |
| 20110308895 | ELEVATOR SAFETY DEVICE - An exemplary elevator safety device includes a housing. A brake member is moveably supported by the housing for selective movement between a disengaged position and a braking position. A sensor is supported by the housing and detects movement of the brake member into the braking position. | 12-22-2011 |
| 20110297489 | ELEVATOR LOAD BEARING MEMBER VIBRATION CONTROL - An exemplary device that is useful for controlling vibrations of an elevator load bearing member includes a guide. A mass is moveable relative to the guide responsive to vibration of the load bearing member to introduce a force to counter the vibration. | 12-08-2011 |
| 20110259676 | WEAR AND FRICTION CONTROL OF METAL ROPE AND SHEAVE INTERFACES - A coated sheave ( | 10-27-2011 |
| 20110247900 | OPERATON OF A THREE-PHASE REGENERATIVE DRIVE FROM MIXED DC AND SINGLE PHASE AC POWER SOURCES - A three-phase regenerative drive ( | 10-13-2011 |
| 20110240408 | METHOD OF MAKING AN ELEVATOR BELT - An exemplary method of making a load bearing elevator traction belt includes applying individual coatings of a jacket material to each of a plurality of tension members such that each tension member is individually coated separately from the other tension members. A portion of the individual coatings are joined together to secure the tension members into a desired alignment and to form a single jacket that establishes a geometry of the belt. | 10-06-2011 |
| 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 |
| 20110226559 | BATTERY STATE-OF-CHARGE CALIBRATION - Calibration of the state-of-charge (SOC) of a battery-based energy storage system used with a regenerative drive uses an SOC-open circuit voltage (V?oc#191) correlation. The battery is partially charged or discharged to assure operation defined by V?oc#191 following a known V?oc#191-SOC profile, such as a charge or discharge boundary curve. The partial charging/discharging may be synchronized with a traffic profile of an elevator system driven by the regenerative drive. A V?oc#191 measurement is made, and by enhancing the relaxation dynamics of V?oc#191 through regulating battery usage with a reference to traffic profile, a V?oc#191 is estimated more reliably. Using the estimate V?oc#191 and the known V?oc#191-SOC profile, state-of-charge of the battery is determined. | 09-22-2011 |
| 20110208360 | ON DEMAND ELEVATOR LOAD SHEDDING - Upon request from a power utility to reduce the electrical demand of a building, an elevator system is automatically disconnected from power being delivered by the power utility (or remains connected but receives limited power from the power utility), and a secondary power storage device is connected to the power bus of the elevator system. The secondary power storage device provides power to the elevator system during a period in which the request to reduce electrical load of the building is in effect. When the request end, the elevator system is automatically reconnected to the power delivered by the power utility and can potentially work in a hybrid mode. | 08-25-2011 |
| 20110202178 | VIDEO-BASED SYSTEM AND METHOD OF ELEVATOR DOOR DETECTION - A video-based system detects the position of elevator doors based on video data provided by one or more video detectors. Based on the detected position of the elevator doors, a distance between the elevator doors can be determined. The operation of the elevator doors is controlled based, at least in part, on the detected distance between the elevator doors. | 08-18-2011 |
| 20110198158 | DEVICE FOR DRIVING A DOOR OF AN ELEVATOR - A device for driving a door of an elevator includes a door header, a door, and a driving motor. The door header, which is mounted on a frame defining a doorway, includes a vertical portion substantially parallel to a plane of the doorway. The door is movably supported on the frame. The driving motor, which is disposed on the vertical portion of the door header, includes a housing fixed with respect to the vertical portion, a rotating shaft having an axis that is oriented substantially perpendicularly to the vertical portion, a driving pulley, and a driving portion. The rotating shaft is rotatably supported by the vertical portion at one end thereof and is rotatably supported by the housing at the other end thereof. The driving pulley is coupled to the rotating shaft. The driving portion drives the rotating shaft. | 08-18-2011 |
| 20110168497 | ELEVATOR DOOR SYSTEM - An elevator door system includes an elevator door ( | 07-14-2011 |
| 20110147131 | THERMAL BARRIERS OF ELEVATOR DOOR ROLLER AND RAIL - A roller assembly includes a frame ( | 06-23-2011 |
| 20110147130 | MANAGEMENT OF POWER FROM MULTIPLE SOURCES IN AN ELEVATOR POWER SYSTEM - Power is managed in an elevator system including an elevator hoist motor ( | 06-23-2011 |
| 20110144810 | ELEVATOR AND BUILDING POWER SYSTEM WITH SECONDARY POWER SUPPLY MANAGEMENT | 06-16-2011 |
| 20110139550 | LINE CURRENT AND ENERGY STORAGE CONTROL FOR AN ELEVATOR DRIVE - Power distribution is managed between a regenerative drive ( | 06-16-2011 |
| 20110139547 | MANAGEMENT OF POWER FROM MULTIPLE SOURCES BASED ON ELEVATOR USAGE PATTERNS - Power distribution is managed in an elevator system including an elevator hoist motor ( | 06-16-2011 |
| 20110132698 | INTUMESCENT THERMAL BARRIER FROM HUB TO TIRE - A door assembly has a door header mounted on a frame defining a doorway, a door movably supported on the frame, and a track including at least one supporting surface along at least one side of the track. The track is secured to the door header. The assembly has at least one roller that is adapted to roll along the track. The roller has a rim portion adjacent a hub portion, and a tire material surrounding the rim portion that contacts the track. The roller is at least partially covered with a thermal barrier between the tire material and at least one of the rim portion and the hub portion to prevent heat transfer to the tire material. | 06-09-2011 |
| 20110094837 | SAFE CONTROL OF A BRAKE USING LOW POWER CONTROL DEVICES - A control circuit selectively energizes a load, such as an elevator or escalator brake ( | 04-28-2011 |
| 20110056134 | DOOR ZONE PROTECTION - An apparatus for detecting an object | 03-10-2011 |
| 20110043273 | PULSE WIDTH MODULATION CONTROL OF A MATRIX CONVERTER - A matrix converter includes a plurality of switching elements and is adapted to receive a multi-phase alternating current (AC) input signal having an input frequency and to generate a multi-phase AC output signal having an output frequency. The phases of the input signal are sorted as a function of their instantaneous voltage amplitude ( | 02-24-2011 |
| 20100314202 | ELEVATOR DISPATCHING CONTROL FOR SWAY MITIGATION - An elevator system ( | 12-16-2010 |
| 20100309452 | METHODS AND DEVICES FOR SURVEYING ELEVATOR HOISTWAYS - A device for surveying an enclosed structure ( | 12-09-2010 |
| 20100294599 | WIRELESS ELEVATOR HALL FIXTURES INTEGRAL WITH HALL DOOR FRAME | 11-25-2010 |
| 20100288586 | ELEVATOR MACHINE MOTOR AND DRIVE AND COOLING THEREOF - Heat in a drive system including a motor and a drive is removed using heat pipes in heat exchanging contact with the motor and the drive. The heat conducting element have at least one portion for receiving heat from the motor or the drive, and another portion to transfer heat to a heat exchange device that is spaced from the motor and drive. The heat conducting element may be a heat pipe or a heat spreader element. | 11-18-2010 |
| 20100282543 | COORDINATION OF MULTIPLE ELEVATOR CARS IN A HOISTWAY - The movement of a plurality of elevator cars ( | 11-11-2010 |
| 20100236872 | PASSIVE MAGNETIC ELEVATOR CAR STEADIER | 09-23-2010 |
| 20100236871 | ELEVATOR DOOR VIBRATION AND NOISE ISOLATOR - An elevator door hanger apparatus includes a door hanger configured to be attached to a top portion of a door panel and to at least one movable member and an isolator plate attached to the door hanger and including a lip extending from a bottom of the isolator plate away from the door hanger. | 09-23-2010 |
| 20100213012 | MULTIPLE CAR HOISTWAY INCLUDING CAR SEPARATION CONTROL - A separation distance is maintained between a leading elevator car ( | 08-26-2010 |
| 20100181149 | ELEVATOR SYSTEM WITH GUIDE AXIS ALIGNED WITH TRACTION MEMBER - An elevator car assembly includes a car frame, a car connected to the car frame and having a first guide axis between a first side and a second side of the car frame, a plurality of traction members, a first plurality of sheaves rotatably connected to the car frame between the first side and the second side for respectively receiving the plurality of traction members, and a first guide attached to either the car frame or the car below the first plurality of sheaves for movably engaging a first rail. The first guide is aligned with the first guide axis and is configured to be aligned with the first rail. One of the plurality of traction members and the first guide are vertically aligned at the first guide axis. | 07-22-2010 |
| 20100174509 | DESIGN PROCESS FOR ELEVATOR ARRANGEMENTS IN NEW AND EXISTING BUILDINGS - A method for determining a suitable configuration for an elevator system for a building that includes acquiring building related information and passenger use information. Elevator system performance requirements based on elevator system passenger numbers are selected based on this information followed by selecting a set of elevator system characteristic variables that are desired to be at optimal values which are processed along with the information and performance requirements to provide an optimal solution. | 07-08-2010 |
| 20100164151 | NON-LINEAR SPRING ISOLATION DEVICE - An elevator system includes a car assembly, a drive assembly, and a vibration-damping device ( | 07-01-2010 |
| 20100154527 | Elevator Brake Condition Testing | 06-24-2010 |
| 20100116596 | SERVICE CONTROLLER FOR DETERMINING CROWDING IN AN ELEVATOR CAR - A service controller for crowded elevator cars includes an illuminating apparatus ( | 05-13-2010 |
| 20100116595 | MANAGEMENT OF POWER SOURCE VARIATIONS IN AN ELEVATOR DRIVE SYSTEM | 05-13-2010 |
| 20100089707 | PERMANENT MAGNET NOISE ISOLATOR - An elevator system ( | 04-15-2010 |
| 20100084224 | MACHINE MOUNTING IN A MACHINE ROOMLESS ELEVATOR SYSTEM - An elevator system includes a car ( | 04-08-2010 |
| 20100072001 | 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 ( | 03-25-2010 |
| 20100065382 | VIBRATION ISOLATOR FOR THE SLIDING RAIL GUIDE OF AN ELEVATOR OR THE LIKE - An elevator car sliding guide includes a shoe configured to slide on one or more rails, a first bracket connected to the shoe, a second bracket for connecting to a car assembly, and a plurality of elongated elastomeric members arranged generally from a first end of the sliding guide to a second end of the sliding guide and connected between the first bracket and the second bracket. The shoe and the first bracket are substantially surrounded on three sides by the second bracket. Each of the plurality of elongated elastomeric members is configured for deflection under loads of increasing magnitude. | 03-18-2010 |
| 20100065380 | THERMOELECTRIC THERMAL MANAGEMENT SYSTEM FOR THE ENERGY STORAGE SYSTEM IN A REGENERATIVE ELEVATOR - A regenerative elevator system operates in three modes: motoring, idle and regeneration. During the regeneration mode, the elevator motor operates as a generator, and electrical energy is stored in an energy storage system for later use. The energy storage system may be located in a machine room or hoistway where temperature can vary widely. A thermoelectric thermal management system provides thermoelectric cooling or heating to maintain the energy storage system within a desired operating temperature range. | 03-18-2010 |
| 20100044160 | AUTOMATIC RESCUE OPERATION FOR A REGENERATIVE DRIVE SYSTEM | 02-25-2010 |
| 20100032248 | ELEVATOR DAMPER ASSEMBLY - A damper assembly ( | 02-11-2010 |
| 20100025646 | CENTRIFUGALLY ACTUATED GOVERNOR - An assembly ( | 02-04-2010 |
| 20100025161 | Elevator Cross-Dispatching System with Inter Group Relative System Response (IRSR) Dispatching - During elevator modernization, a cross-dispatching system receives hall calls and assigns each hall call to either a group of existing elevator car controllers or a group of new elevator car controllers. The cross-dispatching system creates an inter group relative system response (iRSR) value for the hall call for both the existing group of elevators and the new group of elevators, based upon information from each group such as car location, in-service status, load, and direction. If the group assigned the hall call does not answer the call within a redispatch time period, the cross-dispatching system again calculates the iRSR for each group and reassigns the hall call. | 02-04-2010 |
| 20100006378 | ELEVATOR DRIVE SYSTEM INCLUDING RESCUE OPERATION CIRCUIT - A system continuously drives an elevator hoist motor during normal and power failure conditions. A regenerative drive delivers power from a main power supply to the hoist motor during normal operation. A rescue operation circuit includes a backup power supply and is operable in the event of a failure of the main power supply to disconnect the regenerative drive from the main power supply and connect the back up power supply to the regenerative drive to provide substantially uninterrupted power to the hoist motor. | 01-14-2010 |
| 20090314583 | Method and System for Communicating With a Controller of an Elevator - The present invention includes a method and a system for communicating with a controller of an elevator car ( | 12-24-2009 |
| 20090308695 | LARGE ITEM TRANSPORT IN A GROUP ELEVATOR SYSTEM - Elevators ( | 12-17-2009 |
| 20090301820 | Communication of Elevator Reassignment Information In a Group Elevator System - Elevator reassignment information is communicated to passengers in a group elevator system ( | 12-10-2009 |
| 20090301819 | Elevator Motor Drive Tolerant of an Irregular Power Source - A hoist motor ( | 12-10-2009 |
| 20090295550 | Elevator system with wireless hall call buttons - An elevator system ( | 12-03-2009 |
| 20090290726 | Announcement System for a Building Transport - An announcement system ( | 11-26-2009 |
| 20090288919 | Commissioning of Elevator Hallway Fixtures in a Destination Entry Group Elevator System - A destination entry input device ( | 11-26-2009 |
| 20090222391 | MANAGING AN ENCODER MALFUNCTION IN AN ELEVATOR DRIVE SYSTEM - A knowledge base of information is generated to facilitate servicing of equipment from multiple manufacturers. A network ( | 09-03-2009 |
| 20090218175 | Elevator Power System - A power system ( | 09-03-2009 |
| 20090216376 | Group Elevator Scheduling With Advanced Traffic Information - A near-optimal scheduling method for a group of elevators uses advanced traffic information. More particularly, advanced traffic information is used to define a snapshot problem in which the objective is to improve performance for customers. To solve the snapshot problem, the objective function is transformed into a form to facilitate the decomposition of the problem into individual car subproblems. The subproblems are independently solved using a two-level formulation, with passenger to car assignment at the higher level, and the dispatching of individual cars at the lower level. Near-optimal passenger selection and individual car routing are obtained. The individual cars are then coordinated through an iterative process to arrive at a group control solution that achieves a near-optimal result for passengers. | 08-27-2009 |
| 20090208067 | ANONYMOUS PASSENGER INDEXING SYSTEM FOR SECURITY TRACKING IN DESTINATION ENTRY DISPATCHING OPERATIONS - An elevator control system ( | 08-20-2009 |
| 20090123653 | Resin Coating Method For The Edge Of A Machined Part, The Corresponding Resin Coating Device And The Part Edge Thus Protected - The method according to the invention to apply resin ( | 05-14-2009 |
| 20090097952 | Method and device for transporting an elevator car drive machine - The present invention includes a method and a device for transporting an elevator car drive machine within an elevator hoistway. The drive machine is secured to a movable carriage located in the hoistway and the carriage is moved in a horizontal direction of travel to move the drive machine horizontally within the hoistway. | 04-16-2009 |
| 20090057068 | Video Aided System for Elevator Control - An elevator control system ( | 03-05-2009 |
| 20090008217 | POSITIVE LINEAR HANDRAIL DRIVE WITH TOOTHED BELT - A passenger conveyor handrail ( | 01-08-2009 |
| 20090000877 | 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 ( | 01-01-2009 |
| 20080217113 | Roof Railing For an Elevator Car Adapted to Be Collapsed With a Handle Actuating All Sides at the Same Time - The invention relates to an elevator car roof railing ( | 09-11-2008 |
