Patents Examined by Dung Van Nguyen
  • Patent number: 10314448
    Abstract: Provided is a vacuum cleaner including a cleaner body; a moving wheel provided at each of both side surfaces of the cleaner body, rotated for travelling of the vacuum cleaner and configured to support the cleaner body to be rotatable in normal and reverse directions; a wheel motor assembly connected to the moving wheel and configured to rotate the moving wheel for the travelling of the vacuum cleaner; a main motor provided inside the cleaner body, located at a rear side further than a vertical extension line of a rotating center of the moving wheel and driven to suction dust; and a battery provided inside the cleaner body, located at the rear side further than the vertical extension line of the rotating center of the moving wheel and configured to provide electric power to the main motor and the wheel motor assembly, wherein a center of gravity of the cleaner body is located at a rear of the vertical extension line of the rotating center of the moving wheel due to an arrangement of the main motor and the batt
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: June 11, 2019
    Assignee: LG Electronics Inc.
    Inventors: Jungkyu Son, Bohyun Nam, Jaeyong Park, Sehwan Bae, Jonghyun Seo, Jinwoo Lee, Sangchul Lee, Kietak Hyun, Jungmin Ko, Suhan Eo
  • Patent number: 10314451
    Abstract: A vacuum cleaner including a cleaner body; and a dust collector provided in the cleaner body, wherein the dust collector includes an outer case forming a side appearance of the dust collector; a first cyclone provided within an outer case to filter dust and foreign matter from air introduced into the dust collector; a second cyclone accommodated within the first cyclone to separate fine dust from the air introduced into the first cyclone; and an upper cover mounted on a top of the outer case to cover the first and second cyclones and having an intake guide configured to introduce air into the outer case and an exhaust guide configured to discharge air from which fine dust is separated by the second cyclone.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: June 11, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Kietak Hyun, Jungmin Ko, Soohan Eo, Sangchul Lee
  • Patent number: 10314446
    Abstract: Provided is a suction unit to be provided in an electric vacuum cleaner including an electric blower. The suction unit includes a suction inlet arranged to extend in a longitudinal direction, and arranged opposite to a surface to be cleaned; a connection opening to be connected to the electric blower; a suction passage arranged to extend along a center line joining a middle of the suction inlet in the longitudinal direction and a middle of the connection opening in the longitudinal direction to connect the suction inlet and the connection opening; and a plurality of first partition walls each of which is arranged in the suction passage, and is arranged to extend from a side on which the connection opening is defined to a side on which the suction inlet is defined. The suction passage includes a first main passage and a plurality of first division passages.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: June 11, 2019
    Assignee: Nidec Corporation
    Inventors: Chun-Hsien Liu, Hiroyuki Ichizaki, Bo-Yi Li
  • Patent number: 10307843
    Abstract: Provided is an internal gear grinding method that makes it possible to grind an internal gear having arc-shaped teeth in a short amount of time. To this end, an internal gear having arc-shaped teeth and a threaded grindstone with a barrel shape having blades with a shape corresponding to the arc shape of the teeth are engaged at a predetermined axis intersection angle, and the internal gear and the threaded grindstone are made to rotate in synchronization with each other so that the tooth surface of the internal gear is ground by the blade surface of the threaded grindstone.
    Type: Grant
    Filed: May 26, 2014
    Date of Patent: June 4, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES MACHINE TOOL CO., LTD.
    Inventors: Masashi Ochi, Yoshikoto Yanase, Yasuhiro Nakamichi
  • Patent number: 10307028
    Abstract: A cleaner head for a vacuum cleaner having a suction inlet, a front blade and a rear blade. The front blade is located forward of or at the front of the suction inlet and is arranged to pivot about a first axis. The rear blade is located rearward of or at the rear of the suction inlet and is arranged to pivot about a second axis different to the first axis. Each blade pivots between a deployed position and a retracted position. The blades are configured such that when one of the blades is in the deployed position, the other of the blades is in the retracted position. Additionally, when one of the blades moves from the deployed position to the retracted position, the other of the blades moves from the retracted position to the deployed position.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: June 4, 2019
    Assignee: Dyson Technology Limited
    Inventor: Jonathan James Gray
  • Patent number: 10292550
    Abstract: A low profile upright surface cleaning apparatus comprises an air flow duct which has a length in a lateral direction that is transverse to the central longitudinal axis (front to back) of the surface cleaning head that is greater than a depth of the air flow duct in a direction of the central longitudinal axis.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: May 21, 2019
    Assignee: Omachron Intellectual Property Inc.
    Inventors: Wayne Ernest Conrad, Nina Conrad, Dave Petersen
  • Patent number: 10292559
    Abstract: Ergonomic gripping mechanisms of handheld air movement apparatuses are provided. A handheld air movement apparatus may include a handle portion and a tool portion. The handle portion may include a grip, a trigger, and a handle pivot. The grip may have first and second ends. The trigger may be positioned toward the first end of the grip and the handle pivot may be positioned toward the second end of the grip. The tool portion may include a housing, a nozzle coupled to the housing, and a handle connection base. The tool portion may provide air movement into and/or out of the nozzle in response to a signal received from the trigger of the handle portion. The handle connection base of the tool portion may be pivotally coupled to the handle portion at the handle pivot to provide directional height adjustment of the tool portion with respect to the handle portion.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: May 21, 2019
    Assignee: TRANSFORM SR BRANDS LLC
    Inventor: Ross Carl
  • Patent number: 10292556
    Abstract: A cleaner head for a vacuum cleaner including an agitator in the form of a brush bar, the brush bar including a plurality of radially extending bristles and a sealing material disposed between the bristles. The sealing material extends over substantially the entire circumferential and axial extent of the regions of the brush bar between the bristles. The cleaner head further includes a housing defining a chamber which at least partially surrounds the brush bar, a dirty air inlet in a lower part of the chamber and a front opening that exposes the brush bar at the front of the housing. The brush bar is supported for rotation with respect to the housing and arranged in the chamber such that the brush bar seals against the housing thereby restricting flow of air through the front opening.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: May 21, 2019
    Assignee: Dyson Technology Limited
    Inventors: David Andrew Isley, Thomas Michael McVey, Stephen Benjamin Courtney
  • Patent number: 10276415
    Abstract: A gas purge unit introduces a cleaning gas into a container with a main opening there through for taking a housed object in and out. The gas purge unit includes a blowout member and a supply portion. The blowout member with a cylindrical shape has an elongated hollow extending in a longitudinal direction and a discharge portion of a porous body connecting between the elongated hollow and the outside to discharge the cleaning gas. The supply portion is connected to the elongated hollow through a connection hole formed at one end of the blowout member to supply the cleaning gas to the elongated hollow.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: April 30, 2019
    Assignee: TDK CORPORATION
    Inventors: Takuya Kudo, Toshihiko Miyajima
  • Patent number: 10271699
    Abstract: The present disclosure relates to an autonomous cleaning device and a wind path structure for use in the autonomous cleaning device.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: April 30, 2019
    Assignees: Beijing Xiaomi Mobile Software Co., Ltd., Beijing Rockrobo Technology Co., Ltd
    Inventors: Xing Li, Xiaoyu Liu, Yongfeng Xia
  • Patent number: 10264937
    Abstract: Described are swivel systems and swivel assemblies for connecting a vacuum appliance to a vacuum accessory. The assembly can be adapted to be coupled to the accessory to permit the appliance to pivot relative to the accessory offset from a center of the accessory. The swivel system can include a vacuum adapter and a connector adapted to permit the vacuum adapter to pivot about a vacuum accessory. A plenum chamber can be formed in the adapter that is in fluid communication with one or more vacuum hoses to balance the airflow within the adapter.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: April 23, 2019
    Assignee: Emerson Electric Co.
    Inventors: Christopher Lutz, Matt Williams, Jaime Swindall
  • Patent number: 10267000
    Abstract: A debris blower system for clearing debris from the path of a road grader. The debris blower system generally includes a mounting platform configured to mount to a road grader, a blower unit attached to the mounting platform, an exhaust tube attached to the blower unit, and a motor attached to the mounting platform. The exhaust tube may be configured to rotate relative to the blower unit to alter the flow of air from the blower unit. The motor is configured to rotate the exhaust tube and alter the direction of air from the blower, which is generally to a road surface in front of a road grader. The debris blower system may also be attached to a lifter, which permits the mounting platform to be raised and lowered to further control the outflow of air from the blower unit.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: April 23, 2019
    Inventor: Merlin L. Olson
  • Patent number: 10258213
    Abstract: A vacuum accessory having an elongated axis, the accessory comprising an adapter configured to provide fluid communication with a vacuum appliance, at least first and second air outlet ports spaced along the elongated axis of the accessory. The ports are configured to balance airflow along the elongated axis of the accessory.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: April 16, 2019
    Assignee: Emerson Electric Co.
    Inventors: Christopher Lutz, Matthew A. Williams, Jamie Swindall
  • Patent number: 10258210
    Abstract: A hand vacuum cleaner may have a first stage cyclone having a first stage cyclone chamber, a first stage cyclone air inlet, a first stage cyclone air outlet and a first stage longitudinal cyclone axis about which the air rotates in the first stage cyclone chamber. A second stage cyclone may be downstream from the first stage cyclone and may be at least substantially nested in the first stage cyclone. The second stage cyclone may have a second stage cyclone chamber, a plurality of second stage cyclone air inlets, a second stage cyclone air outlet and a second stage longitudinal cyclone axis about which the air rotates in the second stage cyclone chamber. A length of the second stage cyclone chamber may be shorter than a length of the first stage cyclone chamber.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: April 16, 2019
    Assignee: Omachron Intellectual Property Inc.
    Inventor: Wayne Ernest Conrad
  • Patent number: 10258443
    Abstract: A brush head assembly (100) including: a hard platen (24); a plurality of bristle tufts (21), each of which includes a plurality of bristle strands having a proximal end (23) and a free end (25); and an elastomeric matrix (30) bonded to the hard platen, where each of the bristle tufts is bonded directly to the elastomeric matrix without a retention element. A brush head assembly (100) includes: a hard platen (24) with a plurality of bristle tuft holes (28); a plurality of bristle tufts (21), each of which includes a plurality of bristle strands having a proximal end (23) and a free end (25), where each of the plurality of bristle tufts are inserted into a respective one of the bristle tuft holes; and an elastomeric matrix (30) that at least partially encompasses the hard platen and the proximal end of the bristle tufts.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: April 16, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Gregory Russ Goddard, Evan Dak Wah Dengler
  • Patent number: 10258215
    Abstract: A driving mechanism for an autonomous planar surface cleaning robot is disclosed. The driving mechanism includes a first transmission component and a second transmission component spaced apart in parallel relationship relative to the first transmission component. Each of the first and second transmission components defines first and second ends and first and second sides, wherein the first sides face each other and the second sides face away from each other in a direction transverse from the direction of motion and the first and second ends are oppositely spaced along the direction of motion. Each of the first and second transmission components are independently controllable by a control unit of the autonomous planar surface cleaning robot.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: April 16, 2019
    Assignee: ECOVACS ROBOTICS, INC
    Inventor: Dongqi Qian
  • Patent number: 10258212
    Abstract: A cleaner includes: a cleaner body having therein a module mounting portion; a rotation driving portion provided at one side of the module mounting portion; and a cleaning module detachably mounted to the module mounting portion through one side of the cleaner body, wherein the cleaning module includes: a holder linearly inserted into or withdrawn from the module mounting portion in a side direction of the cleaner body; and a cleaning member supported by the holder so as to be inserted or withdrawn into or from the module mounting portion, together with the holder when the holder is inserted thereinto or withdrawn therefrom, and the cleaning member rotated by a driving force provided from the rotation driving portion.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: April 16, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Bohyun Nam, Inbo Shim, Jihoon Sung, Sojin Park, Seunghyun Song, Sangkyu Lee, Changhwa Sun, Sangjo Kim
  • Patent number: 10252360
    Abstract: Methods for machining may include: (a) providing a bevel gear on a workpiece spindle of a machine, the gear having a tooth having a head, (b) rotationally driving the gear about an axis of the spindle, (c) providing a first machining tool on a tool spindle of the machine, (d) machining the gear by means of the first machining tool, (e) providing a grinding tool as a second machining tool on the tool spindle or on a further spindle, (f) driving the grinding tool to rotate about a tool axis of the tool spindle, wherein the grinding tool comprises a concave machining region that has a ring shape and is arranged concentrically in relation to the tool axis, and (g) advancing the grinding tool in relation to the gear to bring the machining region into chip-removing operational connection with an edge in a region of the head to produce a chamfer on the edge by grinding.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: April 9, 2019
    Assignee: KLINGELNBERG AG
    Inventor: Hastings Wyman
  • Patent number: 10251520
    Abstract: A suction nozzle apparatus and a cleaner having the same includes a casing of which a mounting groove is formed in a bottom surface, a drum brush rotatably coupled to the mounting groove of the casing, and a cutting member configured to remove a foreign substance wound around the drum brush. The drum brush includes a drum core in which at least one foreign substance collecting groove that the foreign substance is wound is formed in an outer circumference and a blade formed in a spiral form in the outer circumference of the drum core.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-han Jeong, Young-sung Jung
  • Patent number: 10244910
    Abstract: A surface cleaning apparatus has an air flow path extending from a dirty air inlet to a clean air outlet with a main air treatment member having a dirt collection region having an openable door and a main suction motor provided in the air flow path. The dirt collection region is exposed to sub-atmospheric pressure when the openable door is in an open position.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: April 2, 2019
    Assignee: Omachron Intellectual Property Inc.
    Inventor: Wayne Ernest Conrad