Patents Examined by Diem M Tran
  • Patent number: 11964848
    Abstract: An elevator system includes a hoistway, an elevator car configured to travel in the hoistway, and a pit located at a bottom of the hoistway. A safety chain is configured to enable or disable motion of the elevator car, and a sensor assembly is configured to initiate opening the safety chain to disable motion of the elevator car upon detection of a person in a detection region of the sensor assembly in the hoistway. A test device is configured to test operation of the sensor assembly to detect malfunctioning and/or tampering of operation of the sensor assembly.
    Type: Grant
    Filed: June 12, 2023
    Date of Patent: April 23, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Randy Roberts, Johanna Whitwell, Craig Drew Bogli
  • Patent number: 11958720
    Abstract: There is provided a vibration suppression device for a rope-like body of an elevator that can inhibit displacement of the rope-like body from becoming unstable due to amplification of the displacement and can make a movable range of the rope-like body wider. A vibration suppression device (20) includes a movable unit and a stopper. The movable unit can move in a direction in which a distance from an equilibrium position (19) of the rope-like body changes. The stopper restricts movement of the movable unit to a position closer than a first distance (d1) from the equilibrium position (19). The movable unit includes a displacement amplifier and a restriction member. The displacement amplifier is arranged to be directed to a first position (P1) of the rope-like body. The displacement amplifier amplifies displacement of the rope-like body. The restriction member inhibits the rope-like body from approaching the displacement amplifier.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: April 16, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomohiro Asamura, Eiichi Saito, Seiji Watanabe
  • Patent number: 11952240
    Abstract: A roller for an elevator system has a roller body made of a metal material and a shell made of a POM material forming a running surface of the elevator roller. The shell and the roller body each have a wave profile running in a circumferential direction on a shared contact surface, wherein the shell has, on the running surface, a V-ribbed profile aligned with the wave profile of the roller body that has a rib spacing which substantially corresponds to a wave spacing of the wave profile. The elevator roller is manufactured using a molding process.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: April 9, 2024
    Assignee: INVENTIO AG
    Inventors: Florian Dold, Gian-Reto Petruzzi, Volker Zapf
  • Patent number: 11939190
    Abstract: The present invention relates an elevating apparatus based on a hetero-oriented non-isometric, dual-spiral drive structure, comprising a first carrier and a second carrier, further comprising a first support and a second support that are telescoped together in a manner that they can rotate with respect to each other, the first support is provided with a first recessed portion and a first raised portion that shares the same spiral direction and spiral pitch, the second support is provided with a homo-oriented, isometric, dual-spiral second recessed portion that has a spiral direction different from that of the first recessed portion. The carrier of the present invention is provided in a simply-supported-beam, and the carrier force can be achieved without additional weight, and the operation is stable and reliable.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: March 26, 2024
    Assignees: TAIZHOU UNIVERSITY, JIANGSU ZHIJI ENVIORNMENTAL PROTECTION TECHNOLOGY CO., LTD.
    Inventors: Xiangdong Kong, Ping Dong
  • Patent number: 11939189
    Abstract: A frictionless electronic safety actuator (100; 202), for use in an elevator system, includes a magnetic plate (104); an electromagnet (102); a linkage (136); a biasing arrangement (106); and a path-constraining arrangement (112). The linkage (136) is actuatable so as to move a safety brake (204) into frictional engagement with an elevator guide rail (206). The linkage (136) is attached to the magnetic plate (104) and is moveable between a first position in which the linkage (136) is actuated and a second position in which the linkage (136) is not actuated. The biasing arrangement (106) is arranged to apply a biasing force to the magnetic plate (104) to bias the magnetic plate (104) towards the first position.
    Type: Grant
    Filed: November 11, 2022
    Date of Patent: March 26, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventor: Javier Munoz Sotoca
  • Patent number: 11932514
    Abstract: Elevator systems and methods are provided. The systems include an elevator car movable within an elevator shaft, the elevator car includes an elevator car door interlock device operable to open and close elevator car doors, a plurality of landing doors located at respective landings along the elevator shaft, wherein each landing door includes a landing door interlock device operable to open and close a respective landing door, wherein each landing door interlock device is engageable by the elevator car door interlock device to enable operation of the elevator car doors and the respective landing door simultaneously. An elevator component inspection system is configured with a detector located on the top of the elevator car and arranged to monitor the interlock devices, wherein the detector obtains inspection data associated with the elevator car door interlock device and the plurality of landing door interlock devices.
    Type: Grant
    Filed: January 5, 2023
    Date of Patent: March 19, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Sandeep Sudi, Daniel M. Tripp
  • Patent number: 11932524
    Abstract: A base frame for a reach truck includes a wheel arm subassembly with two wheel arms each having a front end and an opposing rear end. A load wheel receiver is positioned on each rear end and a counterweight is positioned at the front end of the wheel arms and coupled to the wheel arm subassembly by a plurality of screw connections. The plurality of screw connections comprise a first portion of screw connections and a second portion of screw connections. The first portion of screw connections each extend in a first direction and the second portion of the screw connections each extend in a second direction which is different from the first direction.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: March 19, 2024
    Assignee: Jungheinrich Aktiengesellschaft
    Inventors: Frank Lemke, Boyan Belchev
  • Patent number: 11912536
    Abstract: Drive comprising a set of safeties that can be bidirectional or unidirectional. In the case of the bidirectional system, it is formed by two wedge rollers (1) and (2) that run through oblong grooves (11) and (12) respectively provided in a protective plate (16). The wedge rollers (1) and (2) are assembled onto floating anchors (14) and (15) respectively, which anchors are linked together by means of a spring (5); on the other hand it comprises a drive assembly comprising a coil (3) where the transmission between the drive and the wedge assembly is carried out by means of a flexible transmission comprising two cables (7) and (8) joined at one of their ends to the drive assembly and at the other end to the floating anchors (14) and (15) on which the wedge rollers (1) and (2) are mounted. In addition, the bolts of the rollers (1) and (2) run through the oblong holes of a discriminating plate (6) which is responsible for separating the non-wedged roller from the guide.
    Type: Grant
    Filed: October 7, 2019
    Date of Patent: February 27, 2024
    Assignee: DYNATECH, DYNAMICS & TECHNOLOGY, S.L.
    Inventor: Francisco de Asis Mateo Mur
  • Patent number: 11912538
    Abstract: A buffer device (121) for an elevator system (100), the buffer device (121) including a first contact structure (501) and a second contact structure (503). The first contact structure (501) includes a first contact surface (505), and the second contact structure (503) includes a second contact surface (507). The first contact surface (505) and the second contact surface (507) are arranged for contacting respective vertically offset surfaces of an elevator car (101) or counterweight (109).
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: February 27, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Javier Munoz Sotoca, Luis Mena
  • Patent number: 11912535
    Abstract: A brake device for a traveling body of an elevator installation brakes on a rail having first and second braking profiles. The brake device includes a forcing element and a counter-support. The forcing element has first and second forcing working faces for acting on the first and second profiles respectively. The counter-support has a first counter-support working face for acting on the first profile, and a second counter-support working face for acting on the second profile. The first forcing working face and the first counter-support working face are arranged opposite one another at the first profile and the second forcing working face and the second counter-support working face are arranged opposite one another at the second profile. The forcing element is spread to bring the first forcing working face into contact with the first profile and the second forcing working face into contact with the second profile.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: February 27, 2024
    Assignee: INVENTIO AG
    Inventors: Erich Bütler, Romeo Lo Jacono, Mischa Salvenmoser
  • Patent number: 11912537
    Abstract: An elevator safety brake (300) for use in an elevator system, the safety brake includes a safety block (310) substantially made of a polymeric material or a polymer-based composite material. The safety block (310) comprising: an elongate channel (320) defining a channel axis (325), wherein the elongate channel (320) is for receiving an elevator guide rail (330) of the elevator system when in use; and a cavity (340). The safety brake (300) further comprises a first braking component (250, 350) housed in the cavity (340), wherein the first braking component (250, 350) comprises a body (360) and a first braking surface (370). The safety brake (300) further comprises a second braking component (380) comprising a second braking surface (390). The first braking component (250, 350) is arranged on one side of the elongate channel and the second braking component is arranged on the other side of the elongate channel.
    Type: Grant
    Filed: June 22, 2022
    Date of Patent: February 27, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Javier Munoz Sotoca, Luis Mena
  • Patent number: 11905152
    Abstract: Traditionally, counterweight fork type autonomous mobile robots (AMR) have been used for any kind of pallet. But the challenge is it occupies lot more maneuvering space while making turns, which cannot work in narrow operating zones. Hence fork over AMR is preferred. However, these fork over AMR have extended parts always touching the ground surface and thus are not suitable for pallets with a wooden plank at the bottom of the fork opening in the pallet. To overcome the above technical problems, an Adjustable Counterweight-based Fork Type Autonomous Mobile Robot (ACFTAMR) is provided that includes chassis assembly and vertical mast unit, a horizontal cross slide mechanism and forks. The chassis assembly is provided counterweight assembly and counterbalance shafts that move forward and backward during pickup and release of payload when the vertical mast unit moves in upward/downward direction, thus providing better stability and counterbalance to the ACFTAMR.
    Type: Grant
    Filed: July 28, 2022
    Date of Patent: February 20, 2024
    Assignee: TATA CONSULTANCY SERVICES LIMITED
    Inventors: Venkatesh Prasad Bangalore Srinivas, Pradeepak Rajendran, Sreehari Kumar Bhogineni
  • Patent number: 11891274
    Abstract: A method and a catching device are used to catch a traveling body in an elevator system wherein traveling body is movable along a rail. The catching device includes a first braking element, a second braking element, a first guide element, a second guide element and an actuating element. The first braking element and the second braking element are brought into contact with the rail for braking. A first linear bearing is formed between the first braking element and the first guide element and a second linear bearing is formed between the second braking element and the second guide element. Both guide elements are moved between a rest position and a braking initial position, the actuating element moving the two guide elements from the rest position into the braking initial position.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: February 6, 2024
    Assignee: INVENTIO AG
    Inventors: Michael Geisshüsler, Astrid Sonnenmoser, Faruk Osmanbasic, Adrian Steiner, Christian Studer, Julian Stähli, Volker Zapf, Urs Camenzind
  • Patent number: 11891275
    Abstract: A brake device for braking a traveling body movable along a guide rail in a movement direction includes a holder mounting a brake element that has a brake surface directed toward the guide rail, the brake element being movable relative to the holder between a free-running position and a braking position. A pretensioning element is activated to exert a force that moves the brake element toward the braking position. A release element holds the pretensioning element in a holding state and is activated into a released state to reconfigure the pretensioning element from a deactivated configuration into the activated configuration. A pressing element in an actuated state generates a force on the brake element in a direction toward the guide rail to enable a reset of the brake device.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: February 6, 2024
    Assignee: INVENTIO AG
    Inventors: Michael Geisshüsler, Faruk Osmanbasic, Adrian Steiner, Julian Stähli, Heinz Widmer, Volker Zapf
  • Patent number: 11891276
    Abstract: A safety device for an elevator system, and an elevator system. The elevator system includes a guide rope arranged in a hoistway to be used as a guide rail and a running device running along the guide rope, and the safety device includes a body which is connected to the running device, and a first component and a second component which are provided on the body and define a passage for the guide rope to pass through freely when the running device is in normal operation, the first and second components are configured for clamping the guide rope in the passage when a running speed of the running device exceeds a threshold, to restrict the speed of the running device or stop the running device.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: February 6, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Wei Wang, Fujun Yang
  • Patent number: 11891289
    Abstract: There is huge demand for automation in manufacturing, logistics, postal, distribution centers, ecommerce, retail. Typical scissor lift designs can carry large payload but are larger in size. There is a need for a compact fork with more payload carrying capacity. The dual side actuated scissor fork type lift unit is provided. The dual side actuated scissor fork type lift unit includes a top plate, a bottom plate, one or more linear motion (LM) blocks mounted on one or more linear guides, one or more mounting blocks mounted on the one or more LM blocks, and slot on a first end of at least one actuation link is connected to the bottom plate through a pin. The one or more LM blocks is free to slide on the one or more linear guides. The one or more mounting blocks moves along with a motion of the one or more LM blocks.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: February 6, 2024
    Assignee: TATA CONSULTANCY SERVICES LIMITED
    Inventors: Venkatesh Prasad Bangalore Srinivas, Sreehari Kumar Bhogineni
  • Patent number: 11891277
    Abstract: An elevator system includes at least one car and at least one counterweight. At least two support means having different physical properties are arranged between the at least one car and the at least one counterweight.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: February 6, 2024
    Assignee: INVENTIO AG
    Inventors: Florian Dold, Andreas Egger, Marcus Junig, Daniel Meierhans, Philipp Müller, Adrian Steiner, Volker Zapf
  • Patent number: 11884515
    Abstract: A clamping device and an elevator system. The clamping device includes: a base having a limiting space and an opening communicating with the limiting space; and a clamping arm assembly, which is arranged at the opening of the base and forms a gap with the opening in a stationary state, the gap being smaller than a size of a clamped part; in which the clamp arm assembly has a first damping force that allows the clamped part to enter the limiting space via the opening, and has a second damping force that allows the clamped part to exit the limiting space via the opening; and the second damping force is greater than the first damping force.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: January 30, 2024
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Qirui Wang, Zhenyan Tong, Ruili Zhang
  • Patent number: 11884514
    Abstract: A method and device for safety braking an elevator having an upright guide rail wherein the device includes a housing having braking elements on both sides of and being movable along the guide rail, a safety restraint on both sides between the housing and the braking elements, and a clampable and lockable actuating device that unlocks and unclamps in response to a triggering event and brings the braking elements into braking engagement with the guide rail. The actuating device, when unclamped, develops a feed force and movement transverse to the guide rail longitudinal axis engaging the braking elements with the guide rail from a laterally distanced initial position, wherein the braking elements are entrained by frictional contact on the guide rail and enter the safety restraint, and wherein the actuating device is moved back into the initial position, clamped and locked by the braking elements located in the safety restraint.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: January 30, 2024
    Assignee: INVENTIO AG
    Inventors: Hans Blochle, Adrian Steiner, Daniel Meierhans, Julian Stahli
  • Patent number: 11884510
    Abstract: A drive system for an elevator installation includes a drive and a drive suspension for fastening the drive to a support element of the elevator installation. The drive suspension includes a rotary joint for tiltably mounting the drive on the support element and an adjustment device for setting a tilt of the drive about the rotary joint. The support element can be a guide rail wherein the drive system is arranged in an upper end region of the elevator installation.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: January 30, 2024
    Assignee: INVENTIO AG
    Inventors: Alessandro D Apice, Luciano Guarnuto, Romeo Lo Jacono, Urs Polin, Dominik Schmitt, Eric Wang