Patents by Inventor Richard N. Fargo

Richard N. Fargo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10766739
    Abstract: An assembly 28 for actuating and controlling braking of a car of an elevator system is provided. The assembly includes at least one braking device 20 mounted on the car, supported between the car and a hoistway for movement with the car within the hoistway, and configured to apply a braking force to the car. The assembly also includes at least one corresponding actuator 34 supported by the hoistway and configured to selectively engage the braking device to prevent movement of the car.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: September 8, 2020
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Richard N. Fargo, Xiaodong Luo, Enrico Manes
  • Patent number: 10745247
    Abstract: A guidance mechanism for an elevator car is constructed and arranged to move along a lane defined at least in-part between two opposing first and second lane structures of a stationary structure. The guidance mechanism includes a first support structure supported by the first lane structure. The first support structure includes a first retainer face disposed between the elevator car and the first lane structure that substantially faces the first lane structure, and is spaced from the first lane structure. A first retention device of the mechanism is disposed, at least in part, between the first retainer face and the first lane structure. The first retention device is supported by the elevator car and is constructed and arranged to contact the first retainer face for limiting lateral movement of the elevator car away from the first lane structure and toward the second lane structure.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: August 18, 2020
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Tadeusz Pawel Witczak, Richard N. Fargo, Enrico Manes, Zbigniew Piech, Bruce P. Swaybill, Richard J. Ericson, Xiaodong Luo, Adam Marian Myszkowski
  • Patent number: 10689226
    Abstract: An elevator car travels in a lane (113, 115, 117) of an elevator shaft (111). A linear propulsion system imparts force to the car (214). The system includes a first part (116) mounted in the lane of the shaft and a second part (118) mounted to the elevator car configured to co-act with the first part to impart movement to the car. Car state sensors (360a-c) are disposed in the lane and determine a state space vector of the car within the lane. A sensed element (364) on the car is sensed by the plurality of car state sensors when the car is in proximity to the respective car state sensor. A control system (225) applies an electrical current to at least one of the first part and the second part and the plurality of car state sensors communicate with the control system and the linear propulsion system to provide state space vector data.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: June 23, 2020
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Peter DePaola, Jr., Richard N. Fargo, David Ginsberg, Dang V. Nguyen, Shashank Krishnamurthy
  • Patent number: 10589963
    Abstract: A safety gear alignment system for an elevator system includes an elevator shaft and an elevator car having an interior region and disposed in and moveable within the elevator shaft. Also included is an upright structure operatively coupled to the elevator car, the upright structure defining at least one aperture. Further included is a safety gear member having a brake and a frame, the frame operatively coupled to the upright structure. Yet further included is at least one access region defined by the frame of the safety gear member, the access region accessible from the interior region of the elevator car and wherein measurement between the frame and a guide rail of the elevator shaft is made for alignment of the safety gear member relative to the guide rail.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: March 17, 2020
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Justin Billard, Andrés Monzon, Richard N. Fargo, Nicolas Fonteneau
  • Patent number: 10587180
    Abstract: An illustrative example embodiment of a method of making a rotary magnetic drive member includes establishing a plurality of magnet retainers on a rod using an additive manufacturing process. Magnets are inserted between the retainers with magnetic poles of axially adjacent ones of the magnets oriented with like poles facing toward a portion of one of the retainers between the adjacent ones of the magnets.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: March 10, 2020
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Richard N. Fargo
  • Patent number: 10508004
    Abstract: An elevator system includes an elevator car for travel in a hoistway; a stator positioned along the hoistway; and a magnetic screw assembly coupled to the car, the magnetic screw assembly coacting with the stator to impart motion to the elevator car; the stator including a service section having a plurality of poles to coact with the magnetic screw assembly; the stator including a transfer station section, the transfer station section of the stator including a plurality of stator permanent magnets.
    Type: Grant
    Filed: October 6, 2015
    Date of Patent: December 17, 2019
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Richard N. Fargo
  • Patent number: 10421642
    Abstract: An elevator component separation assurance system includes a controller, and a brake controller. The controller includes an electronic processor, a computer readable storage medium, a safety motion state estimator, and a safety assurance module. The safety motion state estimator is configured to identify velocity and position of each one of a plurality of elevator components. The safety assurance module is configured to select a separation map from a plurality of pre-pre-programmed separation maps for each one of an adjacent component pair of the plurality of elevator components for initiating a Ustop that maintains elevator component separation. The brake controller is carried by each one of the plurality of elevator components, and is configured to actuate a secondary brake upon detection of a loss of communication with at least a portion of the controller.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: September 24, 2019
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Randall Roberts, Richard N. Fargo, David Ginsberg
  • Patent number: 10421640
    Abstract: An illustrative example elevator brake device includes a housing that supports a brake member. The brake member has a braking surface. The brake member is moveable between a disengaged position and an engaged position. A plurality of buckling beams are situated to urge the brake member to apply a braking force.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: September 24, 2019
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Richard N. Fargo
  • Patent number: 10407275
    Abstract: A sensor system for a passenger conveyance system includes a multiple of 3D sensors mounted to a movable structure within a vertical shaft and/or a horizontal shaft and a processing module in communication with the multiple of 3D sensors, the processing module operable to identify an obstruction within the horizontal or vertical shaft.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: September 10, 2019
    Assignee: Otis Elevator Company
    Inventors: Yehia F Khalil, Richard N Fargo, Randall Roberts, Randall S Dube, Gary L Nuschler, Peter DePaola, Jr., Arthur Hsu, Tadeusz Pawel Witczak, Bruce P Swaybill, Alan Matthew Finn, Richard J Ericson
  • Patent number: 10370222
    Abstract: A ropeless elevator system includes a first lane, a second lane disposed adjacent to the first lane, and an elevator car moveable within each of the first lane and the second lane. A transfer system is configured to facilitate movement of the elevator car from one of the first lane and the second lane to the other of the first lane and the second lane. The transfer system includes a first transfer assembly arranged in at least one of the first and second lanes. The first transfer assembly is configured to guide the elevator car out of the one of the first and second lanes. A transfer station includes a second transfer assembly configured to receive the elevator car from the first transfer assembly. The second transfer assembly extends between the first and second lanes.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: August 6, 2019
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Richard N. Fargo
  • Publication number: 20190177114
    Abstract: A safety actuation device for an elevator system including an elevator car and a guide rail includes a safety brake disposed on the car and adapted to be forced against the guide rail when moved from a non-braking state to a braking state. An electronic safety actuator is operably connected to the safety brake. The electronic safety actuator includes at least one sensor configured to monitor one or more parameters associated with a ride quality of the elevator car.
    Type: Application
    Filed: December 8, 2017
    Publication date: June 13, 2019
    Inventor: Richard N. Fargo
  • Publication number: 20190100409
    Abstract: A method of pressurizing an elevator (112) includes pressurizing a lobby (102) to a pressure (P2) different from ambient pressure (P1) at the elevation of the lobby (102). Pressurizing the lobby (102) can generally include pressurizing the lobby (102) to a pressure (P2) between the ambient pressure (P1) at the elevation of the lobby (102) and an ambient pressure (P6) at a destination elevation. This can allow for at least some equalization of the inner ears of passengers to take place while passengers are waiting to pass from the lobby (102) into the elevator cab (112), or waiting to pass from the lobby (102) into the ambient pressure (P1) of the building outside the lobby (102).
    Type: Application
    Filed: November 18, 2015
    Publication date: April 4, 2019
    Inventor: Richard N. Fargo
  • Patent number: 10246299
    Abstract: An elevator system is provided that includes a car guiderail, a first counterweight guiderail, a second counterweight guiderail, an elevator machine, a first guiderail mount and a second guiderail mount. The elevator machine includes a frame, a motor, a brake and a sheave. The first guiderail mount structurally connects the frame to the first and the second counterweight guiderails. The second guiderail mount structurally connects the frame to the car guiderail independent of the first guiderail mount.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: April 2, 2019
    Assignee: Otis Elevator Company
    Inventors: Richard N. Fargo, Robert Wheeler
  • Publication number: 20190071281
    Abstract: A load bearing member (30) for a lifting and/or hoisting system includes a plurality of tension members (32) arranged along a width of the load bearing member. Each tension member includes a plurality of load carrying fibers (34) arranged to extend in a direction parallel to a length of the load bearing member and a matrix material (36) in which the plurality of load carrying fibers are arranged. The load bearing member further includes a lateral layer (40, 42) and a jacket material (50) at least partially encapsulating the plurality of tension members.
    Type: Application
    Filed: March 9, 2017
    Publication date: March 7, 2019
    Inventors: Wenping Zhao, Daniel A. Mosher, John P. Wesson, Paul Papas, Gopal R. Krishnan, Brad Guilani, Richard N. Fargo
  • Patent number: 10214387
    Abstract: An illustrative example method of making a magnetic drive component includes inserting a plurality of metal teeth into a metal tube. The teeth respectively have a first portion received against an inner surface of the tube. The teeth respectively have a second portion and a third portion spaced apart and projecting toward a center of the tube. The method includes securing the plurality of teeth to the tube.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: February 26, 2019
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Richard N. Fargo
  • Publication number: 20190010016
    Abstract: An elevator system includes a car disposed in and constructed and arranged to move along a hoistway that includes a centerline and is defined by a stationary structure. A plurality of position sensors of a position detection assembly are configured to be stationary with respect to the stationary structure and are spaced along the hoistway. The plurality of position sensors are configured to measure a magnetic field characteristic associated with the car, and thereby provide continuous car position data to the elevator system.
    Type: Application
    Filed: August 10, 2016
    Publication date: January 10, 2019
    Inventors: Tadeusz Pawel Witczak, Zbigniew Piech, Wojciech Szelag, Cezary Jedryczka, Richard N. Fargo, Dang V. Nguyen, Peter DePaola, Jr.
  • Patent number: 10160620
    Abstract: A load bearing member is provided including at least one load bearing segment having a plurality of load carrying fibers arranged within a matrix material. At least a portion of the load bearing member has a radius of curvature when the load bearing member is untensioned.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: December 25, 2018
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Daniel A. Mosher, Richard N. Fargo, John P. Wesson
  • Publication number: 20180362290
    Abstract: An elevator system includes an elevator car; a guide rail; and a linear synchronous reluctance motor including: a primary circuit having a plurality of primary poles and windings about the primary poles; a secondary circuit having a plurality of secondary poles; the primary circuit coupled to one of the elevator car and the guide rail, the secondary circuit coupled to the other of the elevator car and the guide rail.
    Type: Application
    Filed: August 22, 2018
    Publication date: December 20, 2018
    Inventor: Richard N. Fargo
  • Publication number: 20180330858
    Abstract: An illustrative example embodiment of a method of making a rotary magnetic drive member includes establishing a helical magnet on a rod using an additive manufacturing process.
    Type: Application
    Filed: May 15, 2017
    Publication date: November 15, 2018
    Inventors: Jagadeesh Kumar TANGUDU, Michael A. KLECKA, Richard N. FARGO
  • Publication number: 20180305183
    Abstract: An elevator component separation assurance system includes a controller, and a brake controller. The controller includes an electronic processor, a computer readable storage medium, a safety motion state estimator, and a safety assurance module. The safety motion state estimator is configured to identify velocity and position of each one of a plurality of elevator components. The safety assurance module is configured to select a separation map from a plurality of pre-pre-programmed separation maps for each one of an adjacent component pair of the plurality of elevator components for initiating a Ustop that maintains elevator component separation. The brake controller is carried by each one of the plurality of elevator components, and is configured to actuate a secondary brake upon detection of a loss of communication with at least a portion of the controller.
    Type: Application
    Filed: June 29, 2018
    Publication date: October 25, 2018
    Inventors: Randall Roberts, Richard N. Fargo, David Ginsberg