公开(公告)号：US11717938B2

公开(公告)日：2023-08-08

申请号：US16270037

申请日：2019-02-07

申请人： MAKITA CORPORATION

发明人： Shin Nakamura ,  Hideharu Muto ,  Kenichi Tabushi

IPC分类号： B24B55/05 ,  B24B47/12 ,  B24B23/02

CPC分类号： B24B55/052 ,  B24B23/022 ,  B24B23/028 ,  B24B47/12

摘要： An electric power tool disclosed herein may include a motor; a power transmission mechanism connected to the motor; a housing that houses the motor and the power transmission mechanism; a tool holder projecting from the housing; a cover covering at least a part of a tool attached to the tool holder; and a mask member. The cover may include an engaging portion that engages with the housing. The mask member may have a shape that blocks visibility of at least a part of the engaging portion.

公开(公告)号：US20230234180A1

公开(公告)日：2023-07-27

申请号：US18097289

申请日：2023-01-16

申请人： Chao ZHANG

发明人： Chao ZHANG

IPC分类号： B24B23/02 ,  B24B47/12

CPC分类号： B24B23/022 ,  B24B47/12

摘要： The present application relates to the technical field of grinding, and in particular, to a small grinder, which solves the problems of complex structure, large volume and inconvenience in carrying in the prior art. A small grinder provided by the present application, comprising a housing; a fixing plate is provided inside the housing, the fixing plate divides an inner portion of the housing into an upper portion and a lower portion, and a feeding assembly is provided on the upper portion of the housing; a bracket is further provided on the upper portion of the housing; the bracket divides the upper portion of the housing into two parts, and the two parts are respectively provided with a power mechanism and a power supply mechanism; and the male grinding head is rotatably fitted in the female grinding head. The small grinder has a small volume, a reasonable layout, a stable structure, and simple and convenient operation, and is easy to maintain and carry.

公开(公告)号：US11707828B2

公开(公告)日：2023-07-25

申请号：US17323162

申请日：2021-05-18

申请人： Festool GmbH

发明人： Nico Walker

IPC分类号： B25F5/02 ,  B25F5/00 ,  B24B7/18 ,  B24B47/12

CPC分类号： B25F5/001 ,  B25F5/00 ,  B25F5/008 ,  B25F5/02 ,  B24B7/184 ,  B24B7/186 ,  B24B47/12

摘要： A hand-held machine tool, in particular a sanding machine, including a rod-type handle element for the user to grip and a processing head which is moveably mounted on the handle element by means of a joint assembly. The processing head has an electric drive motor for driving a tool holder provided for holding a processing tool and a speed-reducing gearbox between the drive motor and the tool holder, the gearbox being designed to achieve a reduction in speed of an output of the drive motor relative to a speed of the tool holder. The drive motor is a brushless motor and a power supply system for the drive motor is arranged at a distance from the drive motor on the handle element, the power supply system being connected to the drive motor by means of a cable arrangement.

公开(公告)号：US11701751B2

公开(公告)日：2023-07-18

申请号：US16953730

申请日：2020-11-20

申请人： HUSQVARNA AB

发明人： Andreas Fogelberg ,  Daniel Gustavsson ,  Linus Ottosson ,  Samuel Adolfsson

IPC分类号： B24B41/00 ,  B24B7/18 ,  A47L11/40 ,  A47L11/14 ,  B24B47/12 ,  A47L11/16

CPC分类号： B24B41/002 ,  A47L11/14 ,  A47L11/16 ,  A47L11/4069 ,  B24B7/186 ,  B24B47/12

摘要： The present disclosure relates to a grinding head (1) for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head (1) comprises a lower casing member (3), comprising a lower support (31) and an upwardly extending edge portion (32), and an upper casing number (2), comprising an upper cover (21) and a downwardly extending edge portion (22), wherein the upper casing member (2) is joinable to the lower casing member (3) by causing axially distal portions of the edge portions to bear on each other.

公开(公告)号：US11679470B1

公开(公告)日：2023-06-20

申请号：US17939002

申请日：2022-09-07

申请人： SHENZHEN SANJING TECHNOLOGY CO., LTD.

发明人： Wen Yi

IPC分类号： B24B41/06 ,  B24B19/16 ,  B24B55/10 ,  B24B47/12 ,  B24B41/00

CPC分类号： B24B41/06 ,  B24B19/16 ,  B24B41/002 ,  B24B47/12 ,  B24B55/10

摘要： The present application relates to a grinding machine for tungsten electrode, which includes a driving device and a grinding device arranged on a driving end of the driving device. The grinding device includes a mounting assembly and an adjusting assembly. The mounting assembly is mounted on the driving device, the driving end of the driving device passes through the mounting assembly, the mounting assembly is provided with a grinding chamber, a grinding plate is provided at the driving end of the driving device, and the grinding plate is positioned in the grinding chamber. The adjusting assembly is rotatably connected to the mounting assembly, the adjusting assembly is provided with a clamping component, and the adjusting assembly is configured to adjust a grinding angle of the tungsten electrode on the grinding plate.

公开(公告)号：US11602821B2

公开(公告)日：2023-03-14

申请号：US16746058

申请日：2020-01-17

申请人： TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.

发明人： James Jeng-Jyi Hwang ,  He Hui Peng ,  Jiann Lih Wu ,  Chi-Ming Yang

IPC分类号： B24B47/12 ,  H01L21/304 ,  B24B57/02 ,  B24B37/20

摘要： A wafer polishing head is provided. The wafer polishing head includes a carrier head, a plurality of piezoelectric actuators disposed on the carrier head, and a membrane disposed over the plurality of piezoelectric actuators. The plurality of piezoelectric actuators is configured to provide mechanical forces on the membrane and generate an electrical charge when receiving counterforces of the mechanical forces through the membrane. A wafer polishing system and a method for polishing a substrate using the same are also provided.

公开(公告)号：US11583971B2

公开(公告)日：2023-02-21

申请号：US16307701

申请日：2017-06-07

申请人： Satisloh AG

发明人： Joachim Diehl ,  Alexander Hofmann ,  Steffen Moos

IPC分类号： B24B13/06 ,  B24B27/00 ,  B24B41/04 ,  B24B47/12 ,  B23Q1/62 ,  B23Q39/00

摘要： A machine (10) for machining workpieces with optical quality has at least one workpiece spindle (12), which rotatably drives a workpiece (L) to be machines about a workpiece axis of rotation (C). A swivel head (14) located opposite the workpiece spindle, is pivotable about a pivot axis (B), and bears at least two tool spindles (16, 18), each of which rotatably driving at least one machining tool (T1, T2, T3) about a tool axis of rotation (D, D′). The workpiece spindle and the swivel head (14) are adjustable relative to one another along three mutually perpendicular linear axes (X, Y, Z). One axis (Y) extends parallel to the pivot axis (B). Another axis (Z) extends parallel to the axis (C) of workpiece rotation. At least one tool spindle is attached to the swivel head with its tool axis of rotation (D′) extending parallel to the pivot axis (B).

公开(公告)号：US11549571B2

公开(公告)日：2023-01-10

申请号：US16517183

申请日：2019-07-19

申请人： ILLINOIS TOOL WORKS INC.

发明人： Bryan John Kordus

IPC分类号： F16H7/14 ,  B24B27/06 ,  B24B47/12 ,  B23Q5/04 ,  B23D47/12 ,  B24B21/20 ,  B27B5/30 ,  F16H7/24 ,  B23D45/16

摘要： Apparatus, systems, and/or methods for adjusting belt tension in a material removal machine are disclosed. In some examples, the material removal machine includes a material removal tool secured on a spindle. A spindle pulley may be secured to the spindle, such that rotation of the spindle pulley causes the material removal tool to be rotated via the spindle. The material removal machine may further include a movable hub that retains the spindle, such that movement of the hub translated into movement of the spindle. Because the spindle pulley is securely attached to the spindle, movement of the hub may translate into movement of the spindle pulley. This movement of the spindle pulley may change a distance between the spindle pulley and an actuator pulley, thereby changing the tension in a belt connecting the spindle pulley and the actuator pulley.

公开(公告)号：US11478892B2

公开(公告)日：2022-10-25

申请号：US16833853

申请日：2020-03-30

申请人： black & Decker Inc.

发明人： Drake L. Fisher ,  Brent A. Kuehne ,  Christian V. Elder

IPC分类号： B24B23/02 ,  B24B47/00 ,  B25F5/02 ,  B24B55/10 ,  B24B47/12

摘要： A power tool includes a housing. A motor is housed in the housing. A platen is driven by the motor. The housing includes a first housing part, a second housing part and a third housing part. The housing defines a battery receptacle portion configured to receive a removable battery pack which powers the motor. Each of the first housing part, the second housing part and the third housing part form part of the battery receptacle portion.

公开(公告)号：US20220212313A1

公开(公告)日：2022-07-07

申请号：US17611177

申请日：2021-03-22

申请人： SEIKOH GIKEN Co., Ltd.

发明人： Atsushi YAMADA

IPC分类号： B24B37/10 ,  B24B19/00 ,  B24B37/30 ,  B24B47/12 ,  B24B47/22 ,  B24B49/10

摘要： Provided with a holding unit 4 configured to hold and release a polishing holder 3 to which an optical fiber ferrule 2 can be detachably attached; a turntable 5 arranged below the polishing holder 3 held by the holding unit 4, a polishing plate 6 being replaceably installed on turntable 5; a rotation unit 7 configured to rotate and revolve the turntable 5 for polishing an end face of the optical fiber ferrule 2 attached to the polishing holder 3 by the polishing plate 6 installed on the turntable 5; and a controller 8 for operating the rotation unit 7 to move the turntable 5 to a predetermined revolution position after a polishing using the rotation unit 7 is finished.