公开(公告)号：US10736403B2

公开(公告)日：2020-08-11

申请号：US15935572

申请日：2018-03-26

申请人： Chervon (HK) Limited

发明人： Toshinari Yamaoka ,  Fangjie Nie ,  Jianpeng Guo

IPC分类号： A45F3/14 ,  B25F5/02 ,  E01H1/08 ,  A47L5/14

摘要： Embodiments of the disclosure are directed to a back-mounted power tool system. The power tool system includes a battery package that can be used on other power tool systems, a backpack apparatus, a power tool, and a connecting member. The backpack apparatus includes a backpack harness to mount the backpack apparatus onto a user's body and a first connector to removably couple the battery package to the backpack apparatus. The power tool includes a motor driven by a power supply from the battery package. The connecting member transfers a weight of the power tool and/or a force received from the power tool to the backpack apparatus by rotatably coupling the power tool to the backpack apparatus. The connecting member further enables the power tool to rotate about a first rotation axis or a second rotation axis, the first rotation axis being perpendicular to the second rotation axis.

公开(公告)号：USRE48116E1

公开(公告)日：2020-07-28

申请号：US15842289

申请日：2017-12-14

申请人： Carl L. C. Kah, Jr.

发明人： Carl L. C. Kah, Jr.

IPC分类号： A47L9/16 ,  B01D45/16 ,  A47L9/04 ,  A47L5/14 ,  B01D50/00 ,  B04C5/04 ,  B04C5/103 ,  B04C5/14 ,  B04C5/185 ,  B04C9/00

摘要： A cyclonic separation device in accordance with an embodiment of the present application preferably includes a first cyclone chamber having a cylindrical shape with a predetermined diameter, the first cyclone chamber including, a tangential inlet positioned on a first longitudinal end of the first cyclone chamber, a baffle plate positioned in the first cyclone chamber a predetermined distance from the tangential inlet, a tangential dirt outlet positioned on a second end of the cyclone chamber, opposite the inlet and on an opposite side of the baffle plate from the tangential inlet and a center exit duct mounted in the center of the cyclone chamber having an inlet opening positioned upstream from the baffle plate such the centrifuged fluid without particles flows into the center exit duct and out of the cyclone chamber.

公开(公告)号：US10674681B2

公开(公告)日：2020-06-09

申请号：US15609582

申请日：2017-05-31

申请人： MTD PRODUCTS INC

发明人： Robert Bermudez ,  John Payne

IPC分类号： A47L5/14 ,  A01G20/43 ,  A01G20/47

摘要： A blower including a base having a housing, a handle extending from the housing, a power source positioned within the housing, the blower including: a drive shaft extending forwardly from the power source, wherein the drive shaft is rotatable by the power source; a fan member operatively connected to the drive shaft; a flywheel extending rearwardly from the power source, the flywheel being positioned adjacent to a rear of the housing; and at least one rear vent formed into the rear of the housing adjacent to the flywheel, wherein rotation of the flywheel draws ambient air into the housing through the at least one rear vent, and rotation of the flywheel generates a cooling air flow that directs the ambient air across the power source to cool the power source during operation thereof.

公开(公告)号：US20200154962A1

公开(公告)日：2020-05-21

申请号：US16611028

申请日：2018-06-06

申请人： Husqvarna AB

发明人： E. Arnold Fie ,  Robert W. Schriever

IPC分类号： A47L5/14 ,  A47L9/28 ,  H01M10/613 ,  H01M10/6235 ,  H01M10/643 ,  H01M10/6563 ,  H01M2/10

摘要： A blower may include a housing having a handle, an electric motor powered by a battery pack, and a fan assembly operably coupled to the electric motor to force air through a blower tube responsive to operation of the electric motor. The blower tube defines a blower tube axis. The fan assembly creates a low pressure area in a intake chamber that provides the air to the fan assembly. The air enters the intake chamber via at least one radial entrance and an axial entrance disposed in the housing. The axial entrance is configured to receive cooling air that has passed through the battery pack.

公开(公告)号：US10602893B2

公开(公告)日：2020-03-31

申请号：US15864181

申请日：2018-01-08

申请人： Vorwerk & Co. Interholding GmbH

发明人： Gerhard Isenberg ,  Roman Ortmann ,  Christian Holz

IPC分类号： A47L5/14 ,  A47L9/00 ,  A47L9/08 ,  A47L9/28

摘要： A self-propelled cleaning device has a housing, a fan and a surface cleaning system for cleaning a surface to be cleaned. In order to also be able to clean an above-floor surface, in particular a plateau of a baseboard, the cleaning device also has an above-floor cleaning system for cleaning an above-floor surface vertically offset relative to the surface to be cleaned. The above-floor cleaning system has a flow connection to a suction and/or blower unit having a fan, the flow opening of which has a difference in height of roughly 3 cm or more relative to a standing surface of the cleaning device by comparison to a usual orientation of the cleaning device for a cleaning operation.

公开(公告)号：US20200046181A1

公开(公告)日：2020-02-13

申请号：US16102369

申请日：2018-08-13

申请人： Hall Labs LLC

发明人： David R. Hall ,  Jerome Miles ,  Casey Webb

IPC分类号： A47L5/14

摘要： A vacuum and blower device is disclosed. The vacuum and blower device comprises a fan driven by a first motor, and a housing with a vent, a vacuum input aperture, and a blower output aperture. The vacuum input aperture and the blower output aperture are on one end of the device. The vacuum and blower device further includes an airflow director, the airflow director being held within the housing and adapted to be rotated between a first and second position. A blower output channel communicates with the airflow director and the blower output aperture. In the first position, the fan draws air through the vacuum input aperture and out the vent and airflow to the blower output channel is blocked. In the second position, the fan blows air through the blower output channel and out the blower output aperture.

公开(公告)号：US10470629B2

公开(公告)日：2019-11-12

申请号：US14292090

申请日：2014-05-30

申请人： iRobot Corporation

发明人： Andrew Ziegler ,  Christopher John Morse ,  Duane L. Gilbert, Jr. ,  Andrew Jones

IPC分类号： A47L5/14 ,  A47L11/30 ,  A47L11/40 ,  A47L9/28 ,  A47L9/00 ,  A47L7/00 ,  A47L11/34

摘要： An autonomous floor cleaning robot includes a transport drive and control system arranged for autonomous movement of the robot over a floor for performing cleaning operations. The robot chassis carries a first cleaning zone comprising cleaning elements arranged to suction loose particulates up from the cleaning surface and a second cleaning zone comprising cleaning elements arraigned to apply a cleaning fluid onto the surface and to thereafter collect the cleaning fluid up from the surface after it has been used to clean the surface. The robot chassis carries a supply of cleaning fluid and a waste container for storing waste materials collected up from the cleaning surface.

公开(公告)号：US10405714B2

公开(公告)日：2019-09-10

申请号：US14813829

申请日：2015-07-30

申请人： CHERVON INTELLECTUAL PROPERTY LIMITED

发明人： Jianpeng Guo ,  Fangjie Nie ,  Xiandian Shao ,  Toshinari Yamaoka

IPC分类号： A47L9/02 ,  A47L5/00 ,  A47L9/08 ,  E01H1/08 ,  A47L5/14 ,  A01G20/47 ,  A47L9/28 ,  A47L9/32

摘要： A blowing machine has a main machine where the main machine includes a housing, a motor and a fan with the housing having a main machine air channel in which the motor and the fan are at least partially accommodated. An airflow guiding assembly is attachable to the housing and has an air duct for guiding the airflow and an airflow guiding member for guiding a part of the airflow in the air duct to flow in a direction deflecting from the first axis.

公开(公告)号：US10405707B2

公开(公告)日：2019-09-10

申请号：US15802139

申请日：2017-11-02

申请人： Nanjing Chervon Industry Co., Ltd.

发明人： Qipeng Zhu ,  Xiangqing Fu

IPC分类号： A47L5/14 ,  A01G20/47 ,  F04D19/00 ,  F04D25/06 ,  F04D29/38 ,  F04D25/08 ,  F04D29/54

摘要： A blower includes an axial fan for generating airflow. The axial fan includes a center hub capable of rotating around a central axis and several blades extended outward from the center hub in a radial direction and arranged around the central axis. The several blades and the center hub are integrated as a whole. Each blade is provided with a suction surface and a pressure surface for generating airflow. Two opposite ends of the suction surface and a pressure surface are intersected to form a front edge and a rear edge, and the front edge is in the front of the rear edge in a rotation direction of the axial fan. The front edge has a point close to the center hub which is defined as a root point, and the front edge has another point far from to the center hub which is defined as a tip point.

公开(公告)号：US10396701B2

公开(公告)日：2019-08-27

申请号：US16049853

申请日：2018-07-31

申请人： Nidec Corporation

发明人： Yasoya Hara ,  Hiroki Morioka

IPC分类号： H02P6/06 ,  H02P29/60 ,  A47L9/22 ,  H02P29/032 ,  H02P6/17 ,  A47L5/22 ,  A47L9/28 ,  F04D25/06 ,  F04D25/08 ,  F04D27/00 ,  A47L5/14 ,  A47L5/28

摘要： A motor control device of a motor includes voltage acquisition circuitry that acquires a drive voltage of the motor; rotational speed acquisition circuitry that acquires a rotational speed of the motor; setting circuitry that sets a rotational speed instruction value of the motor; calculation circuitry that calculates a rotational speed threshold value of the motor; change circuitry that changes the rotational speed instruction value; and storage circuitry that stores reference data. The reference data includes at least three types of reference value sets each including a reference drive voltage value, a reference rotational speed instruction value, and a reference rotational speed threshold value. The calculation circuitry performs a proportional calculation, a current rotational speed instruction value, and the reference value set to calculate the rotational speed threshold value.