公开(公告)号：US12270419B2

公开(公告)日：2025-04-08

申请号：US17695239

申请日：2022-03-15

Applicant: TECHTRONIC CORDLESS GP

Inventor： Koon For Chung ,  Yan Jia Wang

IPC: F04D29/66 ,  A01G20/47 ,  F04D17/10

Abstract: Disclosed in the present invention is an electric tool, comprising: a housing, comprising a first opening; working equipment; a power apparatus, at least partially located in the housing and driving the working equipment; a surrounding structure, at least partially surrounding the power apparatus, the surrounding structure defining a second opening; and a blocking structure located between the first opening and the second opening.

公开(公告)号：US20220193691A1

公开(公告)日：2022-06-23

申请号：US17556843

申请日：2021-12-20

Applicant: TECHTRONIC CORDLESS GP

Inventor： Wai Chung Lee ,  Koon For Chung ,  Kun Hao Wu ,  Xiao Di Lan ,  Yan Jia Wang

IPC: B02C23/04 ,  A01G3/00 ,  B02C23/02

Abstract: The present invention discloses a shredding device. The shredding device according to one or more embodiments of the present invention comprises: a shredding body for shredding materials; a frame for supporting the shredding body; and a power supply device that provides electric power to the shredding body. The shredding body comprises a housing, and the housing is provided with a power supply chamber for accommodating at least part of the power supply device. The shredding device according to the present invention features a compact structure, and is easy and safe to operate.

公开(公告)号：US20220143802A1

公开(公告)日：2022-05-12

申请号：US17523858

申请日：2021-11-10

Applicant: TECHTRONIC CORDLESS GP

Inventor： Yan Jia Wang ,  Wai Chung Lee ,  Zheng Jun Wang ,  Jin Cheng Li ,  Dong Wei Li ,  Zhi Yang Li ,  Koon For Chung

IPC: B25F5/02 ,  B25G1/06 ,  B25G3/38

Abstract: The utility model discloses a long-rod-type electric tool, comprising: a handle assembly, the handle assembly comprising a power supply unit; a machine head assembly, the machine head assembly comprising a driving unit and an operating unit connected to the driving unit; a long rod assembly, the long rod assembly being arranged between the handle assembly and the machine head assembly; and at least one interface. The long-rod-type electric tool is configured to make an orientation of the operating unit relative to the long rod assembly adjustable in at least one degree of freedom by means of the at least one interface.

公开(公告)号：US20230358101A1

公开(公告)日：2023-11-09

申请号：US17777424

申请日：2020-10-15

Applicant: Techtronic Cordless GP

Inventor： Koon For Chung ,  Hui Jian Chen ,  Xiao Di Lan ,  Yan Jia Wang ,  Jonathan Robert Feldkamp ,  Shuai Shao ,  Grzegorz Kondro ,  Richard Michael Mcentyre ,  Gregory Scott Torrisi ,  John Eugene McCallum

IPC: E21B11/00 ,  E21B10/44 ,  B28D1/14

CPC classification number: E21B10/44 ,  B28D1/14 ,  E21B11/005 ,  B23B2226/75 ,  B23B2260/096 ,  B23B2260/122 ,  B23B2260/128

Abstract: Provided herein is an electric powered digging apparatus comprising: a powerhead, the power head comprises a motor and a gearbox; a handle frame, the powerhead is mounted onto the handle frame; and a drill bit, the drill bit is driven by the motor to rotate around a longitudinal axis, the electric power digging apparatus further comprises: a first safety mechanism, wherein the first safety mechanism reduces torque output to the drill bit when the powerhead spins around the longitudinal axis for an angle larger than a first threshold, and a second safety mechanism, wherein the second safety mechanism reduces torque output to the drill bit when the powerhead spins around the longitudinal drive axis at an angular speed larger than a second threshold FIG. 1

公开(公告)号：US20220307518A1

公开(公告)日：2022-09-29

申请号：US17695239

申请日：2022-03-15

Applicant: TECHTRONIC CORDLESS GP

Inventor： Koon For Chung ,  Yan Jia Wang

IPC: F04D29/66 ,  F04D17/10 ,  A01G20/47

Abstract: Disclosed in the present invention is an electric tool, comprising: a housing, comprising a first opening; working equipment; a power apparatus, at least partially located in the housing and driving the working equipment; a surrounding structure, at least partially surrounding the power apparatus, the surrounding structure defining a second opening; and a blocking structure located between the first opening and the second opening.