Patents Examined by Dung Van Nguyen
  • Patent number: 10836014
    Abstract: An annular grinding stone is provided which includes a cutting edge with a plurality of V-shaped slits defined in an outer circumferential portion thereof is provided. Each of the V-shaped slits is defined by a first surface and a second surface of the annular cutting edge. The first surface is positioned rearwardly of the second surface with respect to a direction along which the annular grinding stone rotates, and the second surface is positioned forwardly of the first surface with respect to the direction along which the annular grinding stone rotates. The first surface lies perpendicularly to the direction along which the annular grinding stone rotates at a radially outer end thereof and parallel to thicknesswise directions of the annular cutting edge. The second surface is inclined with respect to the first surface at an angle ranging from 30° to 60°.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: November 17, 2020
    Assignee: DISCO CORPORATION
    Inventors: Atsuyoshi Katayama, Takeshi Onodera, Yoshinori Yaguchi
  • Patent number: 10835027
    Abstract: A floor brush for using with floor cleaning equipment and, more specifically, a brush head (1) having distinct zones of varying bristle tuft (41) arrangements and configurations is provided. The brush head (1) is adapted for detachable connecting to a floor maintenance machine which is utilized for cleaning, burnishing, buffing and polishing a work surface such as a floor or the like.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: November 17, 2020
    Inventors: Kenneth L. Shary, Patrick J. Kelley, Yongxing Yan, Zhiman Zhuo
  • Patent number: 10835095
    Abstract: A robot cleaner comprising: a cleaner body including a controller, the cleaner body having a dust container accommodation part formed therein; a wheel unit mounted in the cleaner body, the wheel unit of which driving is controlled by the controller; and a dust container detachably coupled to the dust container accommodation part, wherein a first opening and a second opening are disposed at the same height in an inner wall of the dust container accommodation part, wherein the dust container includes: an entrance and an exit, disposed side by side along the circumference of the dust container, the entrance and the exit, respectively communicating with the first opening and the second opening when the dust container is accommodated in the dust container accommodation part; and a flow separating part extending downwardly inclined along the inner circumference of the dust container, the flow separating part separating the flow of air introduced into the entrance from the flow of air discharged toward the exit to b
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: November 17, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Bohyun Nam, Inbo Shim, Jihoon Sung, Sojin Park, Seunghyun Song, Sangkyu Lee, Woochan Jun
  • Patent number: 10827891
    Abstract: A surface cleaning apparatus includes an air flow path, a cyclone, and an air flow passage. The air flow path extends from a dirty air inlet to a clean air outlet. A suction motor is positioned in the air flow path. The cyclone is positioned in the air flow path, and has a cyclone chamber, a cyclone chamber sidewall, a plurality of tangential air inlets, a cyclone air outlet, and a longitudinal cyclone axis. Air rotates in a direction of rotation in the cyclone chamber. Each tangential air inlets includes an inlet port provided in the cyclone chamber sidewall, each inlet port having an upstream edge and a downstream edge in the direction of rotation. The air flow passage extends parallel to the cyclone axis and upstream from the tangential air inlets. The air flow passage has a terminal end at which the plurality of tangential air inlets are located.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: November 10, 2020
    Assignee: Omachron Intellectual Property Inc.
    Inventor: Wayne Ernest Conrad
  • Patent number: 10827895
    Abstract: A robot cleaner comprising: a cleaner body including a controller, the cleaner body having a dust container accommodation part formed therein; a wheel unit mounted in the cleaner body, the wheel unit of which driving is controlled by the controller; and a dust container detachably coupled to the dust container accommodation part, wherein a first opening and a second opening are disposed at the same height in an inner wall of the dust container accommodation part, wherein the dust container includes: an entrance and an exit, disposed side by side along the circumference of the dust container, the entrance and the exit, respectively communicating with the first opening and the second opening when the dust container is accommodated in the dust container accommodation part; and a flow separating part extending downwardly inclined along the inner circumference of the dust container, the flow separating part separating the flow of air introduced into the entrance from the flow of air discharged toward the exit to b
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: November 10, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Bohyun Nam, Inbo Shim, Jihoon Sung, Sojin Park, Seunghyun Song, Sangkyu Lee, Woochan Jun
  • Patent number: 10828741
    Abstract: A wood sander for sanding a target object. The wood sander comprises a frame, an upper assembly, a lower assembly, a drive system and a plurality of sandpaper sheets. The drive system is configured for pulling the plurality of sandpaper sheets through a path. The path is configured to cause the plurality of sandpaper sheets to touch a portion of the target object as the drive system rotates the plurality of sandpaper sheets. The upper assembly comprises the drive system, and the plurality of sandpaper sheets. The lower assembly comprises a platform configured to hold the target object. The upper assembly and the lower assembly are attached to and supported by the frame.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: November 10, 2020
    Inventor: Royce McFadden
  • Patent number: 10827896
    Abstract: A robot cleaner comprising: a cleaner body including a controller, the cleaner body having a dust container accommodation part formed therein; a wheel unit mounted in the cleaner body, the wheel unit of which driving is controlled by the controller; and a dust container detachably coupled to the dust container accommodation part, wherein a first opening and a second opening are disposed at the same height in an inner wall of the dust container accommodation part, wherein the dust container includes: an entrance and an exit, disposed side by side along the circumference of the dust container, the entrance and the exit, respectively communicating with the first opening and the second opening when the dust container is accommodated in the dust container accommodation part; and a flow separating part extending downwardly inclined along the inner circumference of the dust container, the flow separating part separating the flow of air introduced into the entrance from the flow of air discharged toward the exit to b
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: November 10, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Bohyun Nam, Inbo Shim, Jihoon Sung, Sojin Park, Seunghyun Song, Sangkyu Lee, Woochan Jun
  • Patent number: 10828747
    Abstract: A polishing apparatus comprises a dresser that can adjust swing speed in the scanning areas set on a polishing member along a swing direction, a height detection section that measures a surface height of the polishing member in a plurality of monitoring areas set on the polishing member along the swing direction of the dresser, a dress model matrix creation section that creates a dress model matrix defined from a plurality of monitoring areas, scanning areas and a dress model, an evaluation index creation section that calculates a height profile predicted value using the dress model, the swing speed in each scanning area or a staying time and sets evaluation index based on a difference from a target value of height profile of the polishing member and a moving speed calculation section that calculates the swing speed in each scanning area of the dresser based on the evaluation index.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: November 10, 2020
    Assignee: EBARA CORPORATION
    Inventors: Yasumasa Hiroo, Keita Yagi
  • Patent number: 10820769
    Abstract: A surface cleaning apparatus includes a housing including an upright handle assembly and a base mounted to the upright handle assembly and adapted for movement across a surface to be cleaned. The surface cleaning apparatus is further provided with a fluid delivery system comprising a fluid dispenser configured to dispense fluid to a brushroll and at least one fluid delivery channel forming a portion of a fluid delivery pathway. The fluid delivery channel can extend adjacent to a portion of the suction nozzle assembly. An interference wiper interfaces with a portion of the brushroll to remove excess liquid from the brushroll.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: November 3, 2020
    Assignee: BISSELL Inc.
    Inventors: Jincheng Xia, Jianjun Ge, Zhenjiang Yin, Xin Chen, Yongsheng Liang, Kam Hoi Ma
  • Patent number: 10820684
    Abstract: The method for manufacturing a makeup brush includes: molding a ferrule and welding bristles to the ferrule. The ferrule includes a ferrule inner end; a ferrule outer end; a ferrule body; an interior; and a well. The well has a well base parallel to the ferrule outer end. The well base has an inner side and an outer side. The step of welding the bristles includes the steps of disposing the bristles in contact with the outer side of the well base and exposing the inner side of the well base to welding.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: November 3, 2020
    Inventor: Andrea Gunness
  • Patent number: 10814452
    Abstract: The present application relates to a wheel finishing device, which includes a lower brush system, upper rim brush systems, a riser brush system, a valve hole brush system and the like. The device can be used for removing burrs from an upper rim, a center hole, a flange drainage channel, a riser and a valve hole of a wheel, and simultaneously has the characteristics of high automation degree, high removal efficiency, advanced process, strong generality and high safety and stability.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: October 27, 2020
    Assignee: CITIC DICASTAL CO., LTD
    Inventors: Bowen Xue, Xiuwei Wang, Guorui Wu, Jiandong Guo
  • Patent number: 10813510
    Abstract: A hand vacuum cleaner has a suction motor and fan assembly, an air treatment member and a pre-motor filter. The front end of the air treatment member is forward of the pre-motor filter media and the front end of the suction motor is forward of the pre-motor filter media.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: October 27, 2020
    Assignee: Omachron Intellectual Property Inc.
    Inventors: Andre D. Brown, Wayne Conrad, Nina Conrad, Lee M. Cottrell, Dave Petersen, Jason B. Thorne, Adam Udy
  • Patent number: 10814453
    Abstract: A method of repairing a defect in a damaged rail of a railroad track comprises positioning a rail profiling device on the rails of the railroad track proximate a defect; securing the rail profiling device to the railroad; adjusting its grinder according to a selected value of wheel cone angle to create a profiled running surface over a portion of the damaged rail; creating a median zone using the grinder to remove material from the damaged rail adjacent the defect at a depth corresponding to at least a maximum depth of the defect; creating an incline from the top of the rail and leading to the median zone and one incline leaving the median zone to the top of the rail by using the grinder to grinding material off the damaged rail.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: October 27, 2020
    Assignee: Bombardier Transportation GmbH
    Inventors: Harry Skoblenick, Aleksandar Mancic
  • Patent number: 10807130
    Abstract: A mobile vacuum cart system for use in hospital environments is described. The cart is capable of meeting requirements of ULPA certification, thereby improving air quality and reducing the risk of healthcare-associated infections.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: October 20, 2020
    Assignee: XANITOS, INC.
    Inventors: Ray Taylor, Graeme Crothall
  • Patent number: 10807212
    Abstract: The application discloses a wheel burr removing device, which includes a lower brush system, a synchronous clamping and rotating system, an upper brush system and the like. The device may be used for removing burrs from a riser, an upper flange, a center hole and a flange plate edge of a wheel, and has the characteristics of high automation degree, advanced process, strong universality and high safety and stability at the same time.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: October 20, 2020
    Assignee: CITIC DICASTAL CO., LTD
    Inventors: Bowen Xue, Weizhi Zhang, Jiandong Guo
  • Patent number: 10799967
    Abstract: In various aspects, the diamond wire saw apparatus disclosed herein includes a frame formed in a U-shape from a first rail and a second rail secured to a base, the first rail and the second rail being parallel to one another and perpendicular to the base. Several pulleys are disposed about the frame, and a diamond wire is engaged with the several pulleys to be cycled about the several pulleys. Some of the several pulleys traverse portions of the frame in opposing directions to maintain a selected tension in the diamond wire as the diamond wire is advanced while being cycled to cut a workpiece releasably engaged with the frame. The first rail, the second rail, and the base are formed in sections to be sized to correspondingly size an interior region of the frame to accommodate a workpiece by selective inclusion of sections in the first rail, the second rail, and the base.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: October 13, 2020
    Inventor: Nicholas J. T. Jenkins
  • Patent number: 10792780
    Abstract: A sander includes a motor, a housing, a battery pack, a baseplate and a driving assembly. The motor includes a motor shaft configured to rotate around a first axis. The housing includes an accommodating portion for accommodating the motor. The battery pack is configured to power the motor. The baseplate includes a baseplate plane for arranging sandpaper. The driving assembly is configured to drive at least the baseplate to move eccentrically. The housing is further provided with a first grip portion, a second grip portion, and a coupling portion. The first grip portion is configured to be gripped by one hand of a user. The second grip portion is configured to be gripped by another hand of the user.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: October 6, 2020
    Assignee: Nanjing Chervon Industry Co., Ltd.
    Inventors: Fukinuki Masatoshi, Bing Han
  • Patent number: 10792779
    Abstract: There is provided a method for installing an endless abrasive belt to a belt holder unit, the method comprising: aligning a base with the belt holder unit, the base comprising a backing plate and at least one belt extraction element extending from the backing plate, wherein a cartridge having a belt pre-tightened around the cartridge is physically coupled with the base such that there is a space between the backing plate and the cartridge; arranging the cartridge to face the belt holder unit; reducing said space by pressing the cartridge against the belt holder unit that causes the at least one belt extraction element to push said belt off around the cartridge as a response to reducing the space; and causing tightening of said belt to the belt holder unit.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: October 6, 2020
    Assignee: FLEXMILL OY
    Inventors: Petri Kosonen, Marko Niemi, Tarmo Paldanius
  • Patent number: 10792781
    Abstract: A masking tool system includes a first masking body and a second masking body. The first masking body includes a bore passing through a portion of the first masking body and a first sealing element disposed on a first end of the first masking body. The second masking body includes a bore passing through the second masking body and a second sealing element disposed on a first end of the second masking body. The system may also include a rod configured to pass through the bores of the first and second masking bodies and to secure the first and second masking bodies to a metallic article placed therebetween. A diagonal length of the masking tool system induces a wobbling rotation during processing.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: October 6, 2020
    Assignee: Bell Helicopter Textron Inc.
    Inventors: Michael Scott Lee Larson, Roland L. Walker, Jr., Mark Philip Vance, James Joseph Meyer, Edward P. Michaels, Jr.
  • Patent number: 10792784
    Abstract: A leak checking method which is capable of detecting a leak of compressed gas supplied to a polishing head without removing the polishing head from a polishing apparatus is disclosed. The leak checking method includes: supplying a compressed gas into a pressure chamber, which is formed by a membrane of a polishing head, with the membrane placed in contact with a stationary surface; measuring a flow rate of the compressed gas during supplying of the compressed gas into the pressure chamber, while regulating a pressure of the compressed gas by use of a pressure regulator; deciding whether or not the flow rate measured when a variation in the pressure of the compressed gas is within an allowable range of variation, is within a reference range; and generating a leak-detection signal when the flow rate is outside of the reference range.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: October 6, 2020
    Assignee: Ebara Corporation
    Inventors: Suguru Sakugawa, Nobuyuki Takahashi, Toru Maruyama