Alarm System Patents (Class 187/390)
  • Patent number: 10635411
    Abstract: A graphically based tool and method for generating programming for a fire monitoring system. The locations of existing devices, such as detectors, in a building being monitored, can be visually presented in the context of the building. New devices can be installed, or the location of existing devices changed since all devices report their locations in the building to the tool. Device location information can be combined with building information to create a multi-dimensional representation of parts of the building being monitored.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: April 28, 2020
    Assignee: Honeywell International Inc.
    Inventors: Charles T. Pearson, Jonathan W. Leach, George J. Magyar
  • Patent number: 10150647
    Abstract: A system for controlling and configuration of an occupant evacuation operation (OEO) in a multi-story building has an elevator control system, a fire alarm detection system with a plurality of fire sensor devices, wherein the fire alarm detection system generates fire alarm information signals, and a central control system coupled with the elevator control system and the fire alarm detection system. The central control system has a data processing system with a processor and memory which provide a configurable model of the multi-story building, receive signals from the fire alarm detection system and receive signals and transmit control signals from/to the elevator control system. The configurable model allows configuration of the system creating a model of the functionalities in the multi-story building required for the OEO, and the central control system controls the OEO based on the signals received from the fire alarm detection system and the elevator control system.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: December 11, 2018
    Assignee: SIEMENS SCHWEIZ AG
    Inventors: Andreas Huber, Axel Kunze
  • Patent number: 9969597
    Abstract: A communication gateway device to facilitate communication between at least one elevator car, a call center system, and a third party device includes a cellular communication interface including a digital cellular interface and an analog cellular interface, a wired telephone communication interface including a digital wired telephone interface and an analog wired telephone interface, and an elevator communication interface to send and receive an elevator communication to and from at least one elevator communication device associated with the at least one elevator car, the elevator communication interface associated with the cellular communication interface and the wired telephone communication interface to send and receive the elevator communication to and from at least one of the call center system and the third party device via at least one of the digital cellular interface, the analog cellular interface, the digital wired telephone interface, and the analog wired telephone interface.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: May 15, 2018
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Brian Beloin, Luis C. Encinas Carreno, Michael Garfinkel, Derk Pahlke
  • Patent number: 9561932
    Abstract: A method for identifying an elevator allocated by an elevator system for a user of the elevator system is provided, which elevator system includes a plurality of elevators, and an apparatus that communicates with the elevator system, more particularly with the control system of it, and that is available to a user, which apparatus includes a display. In the method a real-time view of the landscape behind the display is transmitted via the display to the front of the display to the user, and predetermined graphics are presented to the user on the display at a point that transmits to the user a real-time view of the allocated elevator, or in the immediate proximity of said point. An arrangement for identifying an elevator allocated by an elevator system for a user of the elevator system, and also to an elevator arrangement is provided, which implement the aforementioned method.
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: February 7, 2017
    Assignee: KONE CORPORATION
    Inventors: Jukka Salmikuukka, Niko Elomaa
  • Patent number: 9448273
    Abstract: The invention relates to an interface unit, a conveying system and a method. The interface unit comprises an input circuit for the signal determining the safety of the conveying system. The interface unit further comprises means for testing the operating condition of the input circuit.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: September 20, 2016
    Assignee: Kone Corporation
    Inventors: Ari Kattainen, Antti Hovi
  • Patent number: 9355552
    Abstract: The electronic Building Information Card (eBIC) system provides a systematic and comprehensive approach for building information maintenance to assist first responders and building owners in an emergency response. The eBIC solution is built to the essential elements for each building along with a cross vertical view of the building. This provides the first responder a quick size-up assessment, an easy to read graphic view format and further support emergency operations for each building.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: May 31, 2016
    Inventors: John J. Murphy, Jr., Walter Greenberg
  • Publication number: 20150114761
    Abstract: Stall condition in an elevator is potentially dangerous situation if it causes slack to the ropes of the elevator. In such situation a counterweight or elevator car does not move even if the hoisting machine is still operating. This situation may be prevented by stopping the elevator as early as possible after detecting such stall condition. The detection of the stall condition is based on monitoring the torque generated by the hoisting machine of the elevator. When rapid change in the torque is detected a stall condition is suspected. The elevator may be stopped or an alarm may be launched when the stall condition is suspected.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 30, 2015
    Applicant: Kone Corporation
    Inventors: Jari HELVILÄ, Sakari KORVENRANTA, Petter MARTONEN, Petteri VALJUS, Jukka LAITINEN, Lauri STOLT
  • Publication number: 20150090537
    Abstract: A method and an apparatus for monitoring and supervising the lubricant content of elevator ropes in an elevator, which includes at least a hoisting machine provided with a drive motor, the hoisting machine including at least a traction sheave, around which one or more elevator ropes are fitted side-by-side, which ropes move under the effect of friction along with the rotational movement of the traction sheave and at the same time move the elevator car. The lubricant content is monitored and supervised by the aid of a magnetic measuring device disposed in the immediate proximity of the traction sheave and the elevator ropes by collecting in the measuring device the metal dust detaching in connection with wear of the traction sheave and of the elevator ropes during operation of the elevator and by letting the metal dust switch on an alarm about a lubricant content of the elevator ropes that is too low.
    Type: Application
    Filed: December 9, 2014
    Publication date: April 2, 2015
    Applicant: KONE Corporation
    Inventor: Esa Putkinen
  • Publication number: 20150015280
    Abstract: A method of wear detection of a coated belt or rope includes connecting a wear detection unit to one or more monitoring strands and/or cords of a coated belt or rope. The coated belt or rope includes one or more baseline strands and/or cords exhibiting a first change in electrical resistance as a function of bending cycles of the belt or rope and one or more monitoring strands and/or cords exhibiting a second change in electrical resistance as a function of bending cycles of the belt or rope, greater than the first change in electrical resistance. An electrical resistance of the one or more monitoring strands and/or cords is measured via the wear detection unit. Using at least the measured electrical resistance of the one or more monitoring strands and/or cords, a wear condition of the belt or rope is determined.
    Type: Application
    Filed: February 7, 2012
    Publication date: January 15, 2015
    Applicant: Otis Elevator Company
    Inventors: Brad Guilani, Hong Yang
  • Publication number: 20130098712
    Abstract: A pool lift control provides functional operation control of pool lift devices with access control, low power indicator that preserves battery by attempting determination of whether someone is nearby to hear the low battery alert, and emergency stop/panic indication functionality.
    Type: Application
    Filed: November 18, 2011
    Publication date: April 25, 2013
    Applicant: S.R. SMITH, LLC
    Inventors: William Svendsen, Scot Newport
  • Patent number: 8418815
    Abstract: An exemplary system for monitoring an elevator arrangement includes a detector arranged to detect conditions or events in, on or near an associated elevator car. A monitoring device monitors a status of the associated elevator car. The monitoring device communicates with the detector for receiving data indicative of any event or condition detected by the detector. The monitoring device provides an output that associates the status of the elevator car at a time of any detected event or condition with an indication of the detected event or condition including a reproduction of the detected event or condition.
    Type: Grant
    Filed: April 8, 2008
    Date of Patent: April 16, 2013
    Assignee: Otis Elevator Company
    Inventors: Luis C. Encinas Carreno, George S. Copeland, Juan A. Lence
  • Publication number: 20130075203
    Abstract: A safe-zone sensing system for a lift having a base, a lift platform, and a driving system for raising and lowering the lift platform. The safe-zone sensing system comprises a sensor system having a plurality of sensors mounted to the base of the lift. The sensors collectively defining a safe-zone around the base of the lift and detecting motion or obstructions within the safe zone, a controller fires the sensors in a preselected sequence for continuously scanning the safe zone. Scanning is started when the platform raises above a preselected height. The sensor controller generates an alert which initiates a safety sequence when motion or obstructions are sensed by at least one of the plurality of sensors.
    Type: Application
    Filed: September 24, 2012
    Publication date: March 28, 2013
    Inventor: John SAYLES
  • Publication number: 20130056313
    Abstract: A mining elevator traction cable connecting apparatus and a measuring method therefor, for use in a mining elevator serving a deep-mine. The apparatus includes an industrial personal computer (IPC), a signal collector connected to the IPC, multiple symmetrically arranged cable rings for use in connecting to one end of a traction cable, and a traction cable tension adjusting apparatus connected to the multiple of cable rings. Arranged within the traction cable tension adjusting apparatus are a plurality of hydraulic cylinders, and a plurality of draw wire displacement sensors for use in monitoring the relative displacement between each hydraulic cylinder plunger and a corresponding hydraulic cylinder body. The draw wire displacement sensors and an oil pressure sensor connected to a hydraulic pipeline are connected to the IPC via the signal collector, forming a traction cable tension and degree of adjustment measuring system.
    Type: Application
    Filed: August 25, 2011
    Publication date: March 7, 2013
    Applicants: DONGNAN ELEVATOR CO., LTD., CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Guohua Cao, Zhencai Zhu, Jiancong Qin, Hongqiao Kang, Guoan Chen, Chongqiu Wang, Renyuan Wu, Yongguang Cao, Junhui Wu, Yilei Li
  • Publication number: 20130001022
    Abstract: A system and method are disclosed for logically disconnecting fire alarm equipment from elevator control equipment to enable independent testing of each equipment set. The system and method may include an interface having a fire alarm equipment side and an elevator control side which are interconnected by a plurality of relays. A plurality of action relays may be associated with specific functions of the elevator controller. A plurality of bypass relays are interposed between the action relays and the elevator controller so that when a “bypass” operation is initiated, the bypass relays prevent signals from the action relays from reaching the elevator controller. As such, the action relays can be tested without impacting ongoing elevator operations. In addition, the logical disconnection arrangement ensures proper functioning of the system once testing is completed. Other embodiments are disclosed and claimed.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: SIMPLEXGRINNELL LP
    Inventors: Bruce W. Marien, Jeffrey R. Brooks
  • Publication number: 20110240414
    Abstract: An exemplary system for monitoring an elevator arrangement includes a detector arranged to detect conditions or events in, on or near an associated elevator car. A monitoring device monitors a status of the associated elevator car. The monitoring device communicates with the detector for receiving data indicative of any event or condition detected by the detector. The monitoring device provides an output that associates the status of the elevator car at a time of any detected event or condition with an indication of the detected event or condition including a reproduction of the detected event or condition.
    Type: Application
    Filed: April 8, 2008
    Publication date: October 6, 2011
    Inventors: Luis C. Encinas Carreno, George S. Copeland, Juan A. Lence
  • Patent number: 7963372
    Abstract: An elevator evacuation support apparatus evacuates building occupants that have been left inside a building to a refuge floor in an emergency by managing operation of an elevator in which a plurality of floors function as service floors. The elevator evacuation support apparatus has an evacuating operation implementing portion, an evacuating operation time calculating portion, and an evacuating operation determining portion. The evacuating operation implementing portion designates at least one of the service floors as a rescue floor, and implements an evacuating operation for the elevator for transporting the building occupants from the rescue floor to the refuge floor. The evacuating operation time calculating portion receives urgency level information that indicates a degree of urgency, and calculates an estimated amount of time for continuing the evacuating operation as an evacuating operation time based on the urgency level information.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: June 21, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventor: Shiro Hikita
  • Publication number: 20110073416
    Abstract: A security system for an elevator has a car position sensor, which is adapted to determine if a car is at a landing. The security system further has an indicator, which is located at the landing. The indicator is adapted to emit a warning signal if the car is not at the landing.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Applicant: INVENTIO AG
    Inventor: Edward J. Nowel
  • Patent number: 7703578
    Abstract: An elevator apparatus has a car suspended by a main rope through the intermediation of a shackle spring. The car is equipped with a displacement sensor for measuring the displacement amount of the main rope with respect to the car. The displacement sensor is electrically connected to an abnormality control device mounted on the car. The abnormality control device obtains the magnitude of the tension of the main rope based on information from the displacement sensor, and selectively outputs a braking command signal to one of the following devices: an operation control device, a brake device, and an emergency stop device, according to the magnitude of the tension of the main rope.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: April 27, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takuo Kugiya, Ken-Ichi Okamoto, Takashi Yumura, Tatsuo Matsuoka
  • Patent number: 7604452
    Abstract: A pallet positioner includes a support frame that consists of a main upright structure with a pair of spaced, parallel outriggers extending horizontally at ground level. The distal ends of the outriggers are connected by a low-profile ramp. The upright structure includes a pair of vertical guide masts rigidly mounted on a horizontal base bracing the proximal ends of the outriggers. A pneumatically and hydraulically controlled, or electrically and hydraulically controlled, cantilevered carrier with a rotatable platform is mounted for vertical motion along the vertical guide masts. When the carrier travels downward, the carrier stops automatically at a level above the outriggers and must be manually restarted. A braking system under the platform prevents rotation thereof at ground level.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: October 20, 2009
    Assignee: Bishamon Industries Corporation
    Inventors: Robert M. Stone, Guy G. Cox
  • Patent number: 7588126
    Abstract: In the method of the present invention an evacuation mode is presented in an elevator system, which receives destination calls i.e. operates in accordance with so-called destination control. In the method the destination floor calls given on the evacuation floors of the building are changed in the event of an exceptional incident such that the destination floor becomes an exit floor of the building. In the method the elevator car is filled as flail as possible on one floor and the travel time to the exit floor is minimized by directing the elevator car to the escape floor without intermediate stops. The passengers to be evacuated are shown information relating to the evacuation on a display located on the destination call panel and/or inside the car of the evacuation elevator.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: September 15, 2009
    Assignee: Kone Corporation
    Inventors: Marja-Liisa Siikonen, Kim Bärlund
  • Publication number: 20090071762
    Abstract: It is possible to build a remote alarming system with a relatively simple structure, and to handle an abnormality promptly in a case where abnormality occurs in an elevator. The remote alarming system for an elevator includes: an elevator control device (2); a wireless alarming device (3) provided independently of the elevator control device (22), for transmitting failure information of an elevator from the elevator control device through wireless communication; a management device (4) remotely provided from a building in which the elevator is installed, and which is capable of performing wireless communication; and a portable terminal (5) which is capable of performing the wireless communication with the wireless alarming device (3) and the management device (4) via a base station (6).
    Type: Application
    Filed: January 24, 2006
    Publication date: March 19, 2009
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Masaaki Amano
  • Patent number: 7413059
    Abstract: In a fire control system for an elevator, the time for the fire and smoke to reach the elevator hall of each floor of a building during fire is pre-calculated as the evacuation time of the floor. When the evacuation time of a floor is longer than the time for making a car respond to a rescue call from the evacuation floor, the floor is judged as a rescue floor, and when shorter, the floor is judged as a non-rescue floor. Furthermore, the order in which the rescue is carried out among the rescue floors is determined. Accordingly, it is possible to rescue remainders on a rescue floor using an elevator as an evacuation means. Moreover, since rescue operation by the elevator is performed with the order of rescue determined, rescue operation suitable for the conditions of the fire can be realized.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: August 19, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Kiyoji Kawai
  • Patent number: 7284639
    Abstract: A signal for warning of danger in the car is sent to a monitoring chamber without a suspect noticing, and the interior of the car is monitored without alarming the suspect. A call for service is registered upon activating the car manipulating panel and an alarm is registered upon further activation of the car manipulating panel.
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: October 23, 2007
    Assignee: Otis Elevator Company
    Inventors: Hiromitsu Sasaki, Hideaki Saso
  • Patent number: 7210564
    Abstract: In a fire control system for an elevator, the time for the fire and smoke to reach the elevator hall of each floor of a building during fire is pre-calculated as the evacuation time of the floor. When the evacuation time of a floor is longer than the time for making a car respond to a rescue call from the evacuation floor, the floor is judged as a rescue floor, and when shorter, the floor is judged as a non-rescue floor. Furthermore, the order in which the rescue is carried out among the rescue floors is determined. Accordingly, it is possible to rescue remainders on a rescue floor using an elevator as an evacuation means. Moreover, since rescue operation by the elevator is performed with the order of rescue determined, rescue operation suitable for the conditions of the fire can be realized.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: May 1, 2007
    Assignee: Mitsubishi Denki Dabushiki Kaisha
    Inventor: Kiyoji Kawai
  • Patent number: 6847292
    Abstract: An apparatus and method for the emergency release of passengers who are trapped in an elevator car due to an operational disturbance includes a remote alarm device in the elevator car for summoning help from outside the building and equipment for the remote actuation from the elevator car of an electrical closing or locking system of a building outer door. Expert service personnel summoned from outside the building thus gain access to the elevator even when the building door is locked in order to release the trapped passengers. The actuation can be by a specific button installed in the car control panel or through input of a code or by a button combination of the control panel elements. According to a preferred embodiment, the remote unlocking is possible only temporarily, so as to prevent misuse of the emergency situation.
    Type: Grant
    Filed: December 11, 2002
    Date of Patent: January 25, 2005
    Assignee: Inventio AG
    Inventor: Frédéric Nlabu
  • Patent number: 6809650
    Abstract: A method and a device for determining the state of a rail stretch utilize a receiver that is moved along the rail stretch to receive radio signals transmitted by at least three transmitters mounted in the elevator shaft. Spacing data is determined from the radio signals and is compared by an evaluating unit with reference data of the spacing to generate a result with respect to the state of the rail stretch. The positions of rail fastenings, connecting straps and shaft doors can be detected by additional sensors also moved along the rail stretch and are represented in a correction protocol to permit an efficient adjusting of the rail stretch.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: October 26, 2004
    Assignee: Inventio AG
    Inventors: Erich Pfenniger, René Kunz
  • Patent number: 6737980
    Abstract: An apparatus that automatically monitors speed and operating time of a semiconductor fabricating equipment lift that lifts a wafer cassette up/down. The apparatus automatically indicates operational state of the lift including lift speed time, use time after motor replacement and overhaul, and number of wafers processed, for confirmation by a worker.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: May 18, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: In-Pyo Lee
  • Patent number: 6630886
    Abstract: An improved top of car inspection station includes warning circuit for providing a warning signal whenever the elevator car is in the inspection mode and the emergency stop switch is deactivated and the mechanic is not commanding the car to move.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: October 7, 2003
    Assignee: Otis Elevator Company
    Inventor: Thomas F. Malone, Jr.
  • Patent number: 6603398
    Abstract: An improved hoistway access detection system including three safety chains, one for monitoring door position on the even numbered floors, one for monitoring door position on the odd numbered floors, and one for monitoring the position of the pit door, wherein an elevator car is slowly moved to the alternate floor upon detection and subsequent closure of an open pit door and any landing door.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: August 5, 2003
    Assignee: Otis Elevator Company
    Inventors: Helio Tinone, Frank W. Adams
  • Publication number: 20030011483
    Abstract: A wear detector for a suspension rope having a plurality of load bearing strands covered by a sheath includes a sensor at a surface of the sheath. The sensor senses a characteristic of the rope representing a predetermined amount of wear of the sheath. The sensed characteristic can be electrical contact with the strands, distance from the surface of the sheath to the strands, or change of color of the sheath surface.
    Type: Application
    Filed: July 12, 2001
    Publication date: January 16, 2003
    Inventors: Miles P. Lamb, Karl B. Orndorff
  • Publication number: 20030010576
    Abstract: An improved top of car inspection station includes warning circuit for providing a warning signal whenever the elevator car is in the inspection mode and the emergency stop switch is deactivated and the mechanic is not commanding the car to move.
    Type: Application
    Filed: July 10, 2001
    Publication date: January 16, 2003
    Inventor: Thomas F. Malone
  • Publication number: 20020053978
    Abstract: A method and apparatus are described for responding to a fire emergency at a facility by analyzing a plurality of fire threat conditions to determine possible responses to a fire emergency and selecting a response to the fire emergency for minimizing human casualties within the facility. The present invention may be characterized in one embodiment as a method for generating an automated response to an emergency that includes the steps of (a) receiving as input fire threat condition data for a facility; (b) analyzing the fire threat condition data to determine a matrix of possible responses to a fire emergency; and (c) selecting a response from the matrix of possible responses to minimize human casualties.
    Type: Application
    Filed: December 6, 2000
    Publication date: May 9, 2002
    Inventors: Edward W. Peterson , Richard A. Grot
  • Publication number: 20010035828
    Abstract: A device for signaling the position of an elevator car in the case of passenger evacuation includes a measurement circuit connected to a landing door safety chain of the elevator installation. The measurement circuit has at least one LED that indicates to a rescuer person the presence of the elevator car at a floor.
    Type: Application
    Filed: April 16, 2001
    Publication date: November 1, 2001
    Inventor: Eric Rossignol
  • Patent number: 6186280
    Abstract: A vehicle lift assembly prevents accidental slippage of a vehicle therefrom. The vehicle lift assembly comprises a plurality of vertically disposed posts and a runway slidably coupled to the plurality of vertical posts. A hoist system supplies the force necessary for elevating the runway along the plurality of posts. A sensor arrangement detects whether the runway has tilted beyond a predetermined angular displacement. A lift control circuit controls the hoist system to elevate the runway selectively in a prescribed direction, and suspends operation of the hoist system, when necessary, to prevent the vehicle from accidentally sliding off the runway.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: February 13, 2001
    Assignee: Snap-On Technologies, Inc.
    Inventor: Donald A. Healy
  • Patent number: 6138798
    Abstract: The elevator safety device creates a false pit beneath the elevator frame using left and right laterally-spaced, fixed stop members fixedly attached to the car frame, and left and right laterally-spaced safety columns affixed to the pit floor and pivotable between an extended position in vertical alignment with the left and right stop members, respectively, and a retracted position clear of the car, the frame, and the left and right stop members. The safety columns are bumper-type devices designed to support full car weight should the need arise, and provides the ASME A17.1 minimum depth of pit for the refuge area. Actuators are operatively connected to the safety columns to pivot them between their extended and retracted positions. A pressure-sensitive detector located on the pit floor below the car detects the presence of a person on the pit floor. The actuators are electronically activated to pivot the safety columns from their retracted to their extended positions.
    Type: Grant
    Filed: January 14, 1998
    Date of Patent: October 31, 2000
    Inventor: Henry J. Macuga
  • Patent number: 6056088
    Abstract: Monitoring equipment for an elevator drive control includes two modules, a safety circuit sensor system and a motor-switching and/or brake-switching circuit, wherein the monitoring of a safety circuit and the consequential actions resulting therefrom takes place exclusively by means of electronic components while avoiding electrically conductive separating locations. By the use of electronic components, electromechanical switching elements, which have electrically conductive separating locations, can be dispensed with. In addition, an appreciable reduction in the noise level is achieved, since switching noises no longer arise. This has an advantageous effect particularly in the case of elevator installations without a machine room. Furthermore, the manufacturing costs can be significantly reduced and a high security and reliability of the monitoring equipment can be ensured by the use of usual electronic components.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: May 2, 2000
    Assignee: Inventio AG
    Inventor: Bernhard Gerstenkorn
  • Patent number: 5979607
    Abstract: A building having a plurality of floors, a plurality of detectors, such as smoke detectors, located on the floors, and an elevator system usable for moving building occupants between floors during an emergency condition, such as a building fire. The elevator system includes a control unit that controls movement of an elevator car between selected floors within an emergency evacuation zone for evacuation of building occupants to a designated evacuation assistance floor. The vertical movement of the elevator car is controlled relative to the detection of smoke within the building to increase the efficiency of emergency evacuation. The elevator and smoke detection systems are equipped with an emergency power source for operation in the event of a power outage.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: November 9, 1999
    Inventor: Thomas H. Allen
  • Patent number: 5904227
    Abstract: A method for adapting to observed special use patterns a neural network used to estimate quantities needed by an elevator dispatching system responsible for assigning the elevator or another elevator to a hall call. Rather than simply refining values of existing connection weights to train the neural network to provide acceptable outputs for predetermined inputs, the method analyzes use information to determine whether additional inputs to the neural network might be advantageous and what those inputs might be. If so, the method alters the neural network architecture by providing new input nodes and corresponding connection weights, the connection weights having initially relatively small values. All connection weights can then be adjusted during actual operation of the elevator to accommodate the new input nodes.
    Type: Grant
    Filed: December 30, 1997
    Date of Patent: May 18, 1999
    Assignee: Otis Elevator Company
    Inventors: Bradley L. Whitehall, Theresa M. Christy
  • Patent number: 5831227
    Abstract: An apparatus for determining if an elevator car is level with respect to a landing comprises: a first magnet disposed proximate to the landing; a second magnet disposed proximate to the landing; a sensor for providing a level signal in response to detecting a minimum flux region formed by the first and second magnets; and a processor for determining if the elevator is level with respect to the landing in response to the level signal. Each magnet has a first and second magnetic pole. The first and second magnets are adjacently aligned such that the first magnetic pole of the first magnet is adjacent to the first magnetic pole of the second magnet, and the second magnetic pole of the first magnet is adjacent to the second magnetic pole of the second magnet.
    Type: Grant
    Filed: December 13, 1996
    Date of Patent: November 3, 1998
    Assignee: Otis Elevator Company
    Inventors: Alan M. Finn, Jean-Noel Cloux, Peter L. Herkel, Jean-Pierre Pougny, Helmut L. Schroder-Brumloop, Armando Servia, Hans-Kilian Josef Spielbauer
  • Patent number: 5821478
    Abstract: An acoustic signal in an elevator door system is provided if a door close signal is present and a door has not closed within a determined time. A switching frequency of a pulse width modulation signal is reduced such that a motor is caused to provide the acoustic signal.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: October 13, 1998
    Assignee: Otis Elevator Company
    Inventors: Helmut L. Schroder-Brumloop, Rudiger Lob
  • Patent number: 5806633
    Abstract: The elevator safety device creates a false pit beneath the elevator frame using left and right laterally-spaced, fixed stop members fixedly attached to the car frame, and left and right laterally-spaced safety columns affixed to the pit floor and pivotable between an extended position in vertical alignment with the left and right stop members, respectively, and a retracted position clear of the car, the frame, and the left and right stop members. The safety columns are bumper-type devices designed to support full car weight should the need arise, and provides the ASME A17.1 minimum depth of pit for the refuge area. Actuators are operatively connected to the safety columns to pivot them between their extended and retracted positions. A pressure-sensitive detector located on the pit floor below the car detects the presence of a person on the pit floor. The actuators are electronically activated to pivot the safety columns from their retracted to their extended positions.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: September 15, 1998
    Inventor: Henry J. Macuga
  • Patent number: 5780787
    Abstract: A method for monitoring a manual elevator door system comprising the steps of: providing a plurality of sensor signals; detecting the sensor signals; determining in response to detecting the sensor signals that an elevator car is stopped at a landing; determining in response to detecting the sensor signals that a car door of the elevator car is open; determining in response to detecting the sensor signals that a hoistway door is unlocked; determining in response to detecting the sensor signals that a hoistway door is closed; determining in response to detecting the sensor signals that a call has been assigned to the elevator car during a time that the hoistway door is closed; and providing a performance data signal in response to said determinations wherein said performance data signal is representative that the manual elevator door system is in a non-alarm condition.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: July 14, 1998
    Assignee: Otis Elevator Company
    Inventors: Sanjay Kamani, Jean Sanches
  • Patent number: 5780788
    Abstract: An electronic controller arrangement for an elevator car includes an auxiliary controller including instructions for disconnecting a main operational controller from a door operator when either a Phase I (emergency car recall operation); or a Phase II (in-car operation during emergency); special emergency service signal is detected by the auxiliary controller and for performing all door control operations during the Phase I or Phase II emergency condition.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: July 14, 1998
    Assignee: Otis Elevator Company
    Inventors: John Michael Eschenbrenner, Robert James Logemann
  • Patent number: 5644111
    Abstract: An elevator door monitoring system determines if any hatch door at any floor along an elevator shaft or any other door leading to the shaft is opened while an elevator cab is away from the door. The system includes a plurality of non-contact hatch door monitors, such as infrared proximity detectors. At least one monitor is positioned on the elevator shaft at a respective location generally opposite each hatch door along the shaft. Each monitor detects the opening of the respective hatch door without direct contact therewith, e.g., by directing radiation toward the door and measuring the distance to the door. If the distance is too great, indicating that the door is open and no elevator is present, the monitor produces an alarm signal. The alarm signal is sent to a control circuit which takes the elevator out of service and operates audible and visual alarms in response thereto.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: July 1, 1997
    Assignee: New York City Housing Authority
    Inventors: Bohuslav Cerny, Anthony Geniale, John Ashton, Domenico Vitulli
  • Patent number: 5578801
    Abstract: An elevator includes an evaluation unit. A pair of position pick-ups are connected to the cable assembly and/or driving pulley of the elevator and coupled to the input of the evaluation unit. The elevator is accelerated or decelerated for checking adhesion of the cable onto the driving pulley (traction sheave). The motion parameters of the cable assembly and the driving pulley are sensed separately, and the drive capability can be determined therefrom.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: November 26, 1996
    Assignee: Technischer Uberwachungs-Verein Bayern e.V.
    Inventor: Hanspeter Hofmann
  • Patent number: 5551533
    Abstract: A speaker system is provided adjacent to the gate of each of a plurality of elevator cars on each floor of a building. The speaker systems announce messages such as the car number of the next car in either direction, the estimated time of arrival of the car, that the car is full, the approximate delay for service by the next car to come, the car number and floor numbers being served by each loading elevator during up peak with channeling, the up calls are prohibited during up peak, the delay for service by the next car, and that all elevators should not be used in the case of fire or other emergency. Speaker systems are put on the doors of each stairwell on every floor, thereby to direct passengers toward the stairs in case of emergency. The system not only provides information and identification, it also provides audible, directional cues to assist the passengers in locating the service which they are to seek.
    Type: Grant
    Filed: April 1, 1994
    Date of Patent: September 3, 1996
    Assignee: Otis Elevator Company
    Inventor: Bok S. Ng
  • Patent number: 5412542
    Abstract: An emergency illumination device for elevator cabs and the like that includes a low voltage power source defined by the secondary winding of a stepdown transformer having its primary winding connected across a primary power source. When the primary power source is "on", a charging circuit maintains a constant charge on an emergency battery source while providing battery source power to an emergency alarm device that can be activated by a push button on the control panel of the elevator. When the primary power is off, the emergency battery source is activated by a circuit that will continue to provide power to the alarm device and also will provide general illumination to the interior of the elevator and spot illuminate the push button so that it can be easily located and operated by occupants in need of assistance.
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: May 2, 1995
    Assignee: Man-D-Tec, Inc.
    Inventor: Robert R. Mandy