Patents Examined by Diem M Tran
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Patent number: 11713216Abstract: A safety exit assembly for an elevator car and an elevator system. The safety exit assembly includes: a door panel, which is configured to open and close a safety exit of the elevator car, and which has an upper surface and a lower surface; a moving assembly, which includes a guide block provided on a lower surface of the door panel, and a guide rail which guides the door panel to move downward and translate through a cooperation with the guide block; a drive assembly, which drives the door panel to reciprocate along the guide rail; and a locking assembly, which includes an unlocking element provided on an upper surface of the door panel; wherein the unlocking element is electrically connected to the drive assembly, and an unlocking action of the unlocking element triggers the drive assembly to drive the door panel to move until the safety exit is opened.Type: GrantFiled: July 29, 2021Date of Patent: August 1, 2023Assignee: OTIS ELEVATOR COMPANYInventor: Zhuo Chen
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Patent number: 11702317Abstract: A force application assembly, an elevator and a method of elevator rescue. The force application assembly is provided for applying a force to an elevator car when the elevator car and a counterweight are in a balanced state, and the force application assembly includes: a first attachment portion, which is configured to be removably attached to an elevator hoistway; a second attachment portion, one end of which is removably fixed relative to the elevator car or the counterweight, and which is configured to be at least partially elastic; an actuation portion connected between the first attachment portion and the second attachment portion, wherein the first attachment portion is configured to be fixed relative to the actuation portion, and the second attachment portion is configured to be movable relative to the actuation portion; and an operation portion, which is associated with the actuation portion.Type: GrantFiled: July 30, 2021Date of Patent: July 18, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Yunkang Shi, Zhenyan Tong, Wei Wang, Min Wang
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Patent number: 11697573Abstract: A storage system (500) for an elevator hoistway access ladder (300) includes a landing doorway (502) comprising a door column (504) and a landing door (506). The door column (504) includes a rotating support (501) for storing the hoistway access ladder (300), and the rotating support is rotatable relative to the door column (504).Type: GrantFiled: November 18, 2020Date of Patent: July 11, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Jean-Emile Rocher, Vincent Lopez
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Patent number: 11691852Abstract: The present invention includes a height raising member body mountable to an upper end of a frame disposed above an entrance of a car that moves up and down through an elevator shaft, in which a rail for guiding a car door in an opening and closing direction and a pulley for use in opening and closing drive of the car door are mounted to the frame. The height raising member body characteristically includes: a base part connectable to the frame; and a supporting part capable of supporting the motor at a position upward away from the base, the motor being configured to drive the pulley via a belt.Type: GrantFiled: December 3, 2021Date of Patent: July 4, 2023Assignee: FUJITEC CO., LTD.Inventor: Hiroshi Kashiwakura
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Patent number: 11691849Abstract: An elevator safety device includes: a lower beam; and an emergency stop device mounted parallel to the lower beam in order to perform an emergency stop of an elevator car, wherein the lower beam includes: a first side member; a second side member disposed opposite the first side member; a front support member configured to be coupled to and to support front portions of the first side member and the second side member; and a rear support member configured to be coupled to and to support rear portions of the first side member and the second side member.Type: GrantFiled: September 17, 2019Date of Patent: July 4, 2023Assignee: HUMAN NT CO., LTD.Inventor: Hoo Geun Bae
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Patent number: 11679958Abstract: A safety gear arrangement for an elevator system, comprising a safety gear mechanism comprising at least one wedge portion of the safety gear arrangement, wherein, in a normal position, the at least one wedge portion is retracted and, in an operated position, extended by a first spring element for acting on a guide rail of the elevator system, and a triggering device comprising an electromagnet, a second spring element, an actuating member, and an excitation power input, wherein the electromagnet is arranged, while being supplied with excitation power, to maintain the actuating member in an untriggered position against the second spring element, and the actuating member is arranged to operate the safety gear mechanism in response to moving of the member from the untriggered to a triggered position due to the second spring element.Type: GrantFiled: June 24, 2021Date of Patent: June 20, 2023Assignee: Kone CorporationInventors: Janne Laine, Veijo Manninen, Tuukka Korhonen, Matti Rasanen, Jorma Mustalahti, Ville Myyrylainen, Tarvo Viita-Aho, Henri Wenlin
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Patent number: 11673773Abstract: According to an embodiment, an elevator system including: a beam climber system configured to move an elevator car through an elevator shaft by climbing a first guide beam that extends vertically through the elevator shaft, the first guide beam including a first surface and a second surface opposite the first surface, the beam climber system including: a first wheel; a second wheel; a first traction belt wrapped around the first wheel and the second wheel, the first traction belt being in contact with the first surface; and a first electric motor configured to rotate the first wheel, wherein the first traction belt is configured to rotate when the first wheel rotates.Type: GrantFiled: November 7, 2020Date of Patent: June 13, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Justin Billard, Randy Roberts, Kiron Bhaskar, Kyle B. Martin
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Patent number: 11673771Abstract: According to an aspect, there is provided an elevator car parking brake comprising brake pads and an actuator configured to move the brake pads with respect to a guide rail. The elevator car parking brake further comprises levers, each having an associated brake pad; and at least one screw associated with the actuator and rotatably fixed to at least one lever via at least one attaching member. In a braking operation, the actuator is configured to rotate the at least one screw in a first direction with respect to the at least one attaching member, thus causing the levers with the brake pads to move towards the guide rail. In a brake release operation, the actuator is configured to rotate the at least one screw in a second direction with respect to the at least one attaching member, thus causing the levers with the brake pads to move away from the guide rail.Type: GrantFiled: December 30, 2019Date of Patent: June 13, 2023Assignee: Kone CorporationInventors: Antti Koskinen, Hilkka Hamalainen, Timo Vlasov, Mikko Puranen, Antti Saarelainen, Henri Wenlin
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Patent number: 11673774Abstract: An elevator system and a support column assembly. The elevator system includes a support column, with the bottom end thereof connected to a bottom mounting base, and the top end thereof connected to a top mounting base; a counterweight arranged in the support column; a car having a through hole penetrating in a vertical direction, wherein the car is arranged around the support column via the through hole; and a traction assembly, wherein the car is connected to the counterweight via the traction assembly, and the car and the counterweight reciprocate along the length direction of the support column under the traction of the traction assembly.Type: GrantFiled: July 26, 2021Date of Patent: June 13, 2023Assignee: OTIS ELEVATOR COMPANYInventors: Zhe Zhang, Hong Fu, Zhixue Li
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Patent number: 11673770Abstract: An illustrative example embodiment of an elevator governor includes a rotatable governor mechanism, a tension sheave, and a tension frame associated with the tension sheave. The tension frame has a mass configured to bias the tension frame and the tension sheave under an influence of gravity. A damper is configured to resist vertical movement of the tension frame relative to a fixed surface in a first condition and to allow vertical movement of the tension frame relative to the fixed surface in a second, different condition.Type: GrantFiled: June 25, 2021Date of Patent: June 13, 2023Assignee: OTIS ELEVATOR COMPANYInventor: Richard L. Hollowell
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Patent number: 11673781Abstract: A fork for an industrial vehicle such as a forklift, and a method of making the same. The fork includes an elongate body portion, a toe portion, and, optionally, a heel portion. The elongate body portion may be formed in any length and coupled to the toe portion (and optionally, to the heel portion) to form a fork.Type: GrantFiled: October 25, 2021Date of Patent: June 13, 2023Assignee: HYSTER-YALE GROUP, INC.Inventor: Robert C. Dunigan
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Patent number: 11667504Abstract: A fork for an industrial vehicle such as a forklift, and a method of making the same. The fork includes an elongate body portion, a toe portion, and, optionally, a heel portion. The elongate body portion may be formed in any length and coupled to the toe portion (and optionally, to the heel portion) to form a fork.Type: GrantFiled: October 14, 2021Date of Patent: June 6, 2023Assignee: HYSTER-YALE GROUP, INC.Inventor: Robert C. Dunigan
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Patent number: 11661324Abstract: A materials handling vehicle comprises an operator compartment, a compartment tower, a multi-field scanning tool, and mechanisms that facilitate movement along a travel plane in a warehouse. The tool establishes a scan field, and, within scan field bounds, an occupancy detection field and an obstacle detection field. Tool scanning hardware is configured to generate the scan field from a point of origin that is elevated relative to the operator compartment and to expand the scan field such that it intersects the operator compartment and extends laterally beyond lateral edges of the operator compartment such that the occupancy detection field falls within the operator compartment, the obstacle detection field falls outside of the operator compartment, and the multi-field scanning tool is configured to indicate the presence of an occupant in the occupancy detection field and obstacles in the obstacle detection field.Type: GrantFiled: May 31, 2022Date of Patent: May 30, 2023Assignee: Crown Equipment CorporationInventors: Franz Pöschl, Timothy A. Wellman, Stefan Hanneman, Martin Okroy, Stefan Sauer, Jess Donnely
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Patent number: 11655124Abstract: The present invention provides a support jig for assembling an elevator car including; a first member including a first member body configured to be detachably fixed to a car rail having a front surface and a rear surface and vertically extending in a shaft to guide the ascending and descending of the elevator car on the front surface side, and a mount part on which a component of the elevator car is mountable; and a second member including a second-member fixing part configured to be detachably fixed to the car rail, and a support part extending from the second-member fixing part and configured to support the mount part of the first member from below.Type: GrantFiled: February 1, 2022Date of Patent: May 23, 2023Assignee: FUJITEC CO., LTD.Inventor: Hiroshi Kashiwakura
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Patent number: 11649139Abstract: An electronic safety actuator assembly for an elevator system includes a safety case vertically moveable relative to an elevator car. Also included is a safety brake disposed within the safety case. Further included is an electromagnet operatively coupleable to the elevator car. Yet further included is a link member operatively coupleable to the elevator car and to the safety brake. Also included is a magnet disposed between the electromagnet and the safety case, the magnet vertically moveable relative to the elevator car, the electromagnet switchable between an energized condition and an un-energized condition, one of the energized condition and the un-energized condition magnetically attracting the magnet to the electromagnet, the other of the energized condition and the un-energized condition magnetically repulsing the magnet away from the electromagnet, repulsion of the magnet moving the safety brake from a non-braking position to a braking position.Type: GrantFiled: August 5, 2019Date of Patent: May 16, 2023Assignee: OTIS ELEVATOR COMPANYInventor: Juan Antonio Illan
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Patent number: 11639284Abstract: A vertical lift system having a safety brake assembly (10) employing a pair of brakes attached to cables running vertically on each side of a guiderail (1). Each brake has a series of wedges (13, 14, and 15), including a braking wedge (14) that presses against the guiderail to brake downward motion of an elevator or lift basket upon an interruption in cable tension. A cable tension adjustment mechanism (3, 4 and 6) to equalize tension in the cables is also incorporated into the safety brake assembly. An electrical sensor (18) is also provided to disrupt power to the lift system upon slackening of a cable.Type: GrantFiled: December 8, 2021Date of Patent: May 2, 2023Inventor: George F. Becker
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Patent number: 11634302Abstract: An elevator belt monitoring apparatus includes a housing for receiving an elevator belt and a plurality of blade contacts which are operable to pierce the belt and engage the spaced parallel cords arranged within the belt. A plurality of bridge contacts are connected with adjacent pairs of elevator belt cords and signal contacts are connected with cords at the outer edges of the belts. The signal contacts are connected with a monitoring device which sends and receives signals to the contacts to provide an indication of the condition or deterioration of the belt.Type: GrantFiled: September 3, 2021Date of Patent: April 25, 2023Inventors: Reinhard Nolting, Marco Waldhoff, Niels Dallman, Christopher Smith
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Patent number: 11629031Abstract: A structural member of guided fastening connection for an elevator guide rail includes a vertical docking plate, wherein a fixing side plate is welded on two sides of the vertical docking plate symmetrically, a fixing hole is provided on a side of the fixing side plates, an upright plugging plate is welded at two ends of the vertical docking plate symmetrically, the upright plugging plates are docked with a first buckling block on a side, the upright plugging plates are docked with a second buckling block on a side away from the first buckling blocks, the fixing side plates are welded with a lateral arc-shaped plate horizontally on a side away from the vertical docking plate, a turnover strut is provided between the lateral arc-shaped plates horizontally, a middle fixing rod is plugged within a top face of the lateral arc-shaped plates.Type: GrantFiled: June 11, 2022Date of Patent: April 18, 2023Assignee: CHANGSHU INSTITUTE OF TECHNOLOGYInventors: Fusheng Zhang, Yang Ge, Lingyun Ma, Bo Huang, Jianxin Ding, Yong Ren, Benlian Xu
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Patent number: 11613446Abstract: The present disclosure refers to an elevator system particularly for high buildings, comprising: an elevator car comprising one or more electrical service appliances; a counterweight; a power source housed into the counterweight; a hoisting cable connected at a first end to the elevator car and at a second end to the counterweight and comprising carbon nanotube (CNT) yarns, wherein the CNT yarns mechanically support the elevator car and the counterweight and are electric conductor from the power source to the electrical service appliances.Type: GrantFiled: October 25, 2019Date of Patent: March 28, 2023Assignee: Prysmian S.p.A.Inventors: Luca Giorgio Maria De Rai, Michelangelo Graziano, Donald Ray Parris
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Patent number: 11608247Abstract: An elevator system caliper brake includes first and second brake levers each with a brake pad wherein the brake levers move the brake pads relative to one another along an actuation axis. The first brake lever is rotatably mounted at a stationary first mounting point at a housing of the brake, and the second brake lever is rotatably mounted at a second mounting point on an intermediate lever that is rotatably mounted at the brake housing. A tension element can be moved approximately parallel to an actuation axis and is connected to the brake levers at mounting points between the respective brake pads and the brake lever mounting points. A closing spring moves the first and second brake levers to decrease the distance between the brake pads and a linear spindle drive connected to the intermediate lever selectively counteracts the closing spring to increase the distance between the brake pads.Type: GrantFiled: March 26, 2019Date of Patent: March 21, 2023Assignee: INVENTIO AGInventor: Josef Husmann