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公开(公告)号：US20240042591A1
公开(公告)日：2024-02-08
申请号：US18490295
申请日：2023-10-19
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Maxwell L. Merget , Douglas R. Fieldbinder , Jacob P. Schneider
Abstract: A trigger assembly for a power tool includes a housing, a moveable plunger extending from a surface of the housing, the movable plunger includes a first end disposed externally from the housing and a second end disposed internally within the housing. The trigger assembly further includes a trigger shoe coupled to the first end of the moveable plunger, and an arm including a first side that is moveably connected to the second end of the moveably plunger and a second side that is coupled to a magnet. The trigger assembly also includes a sensor configured to sense a magnetic field of the magnet. Movement of the trigger shoe rotates the magnet, and alters the magnetic field sensed by the sensor.
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公开(公告)号：US20230318284A1
公开(公告)日：2023-10-05
申请号：US18328348
申请日：2023-06-02
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Maxwell L. Merget , Jessie L. Bernitt
CPC classification number: H02H7/26 , H02H1/0007 , H02K11/215 , B25F5/001 , H02K7/003 , H02K7/145 , H02J13/00002
Abstract: A power tool including a housing, a motor having a rotor and a stator, at least one grip sensor configured to generate a grip parameter, and a switching network electrically coupled to the brushless DC motor. An electronic processor is connected to the switching network and the at least one grip sensor and configured to implement kickback control of the power tool. The electronic processor is configured to determine a kickback threshold based on the grip parameter, control the switching network to drive the motor, receive a signal related to a power tool characteristic, determine, based on the power tool characteristic being greater than or equal to the kickback threshold, that a kickback event of the power tool is occurring, and control, in response to determining that the kickback event is occurring, the switching network to cease driving of the motor.
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公开(公告)号：US20230234205A1
公开(公告)日：2023-07-27
申请号：US18295543
申请日：2023-04-04
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Jonathan E. Abbott , Timothy R. Obermann , John S. Dey, IV , Benjamin R. Suhr , Richard A. Ryer , Maxwell L. Merget , Douglas R. Fieldbinder
CPC classification number: B25F5/001 , B25F5/02 , H02K7/145 , H02K7/003 , H02K11/21 , B25D16/00 , B25B21/02 , B25F5/00 , B25D2250/221 , B25D2250/265 , B25D2250/205 , B25D2250/201
Abstract: Kickback control methods for power tools. One power tool includes a movement sensor configured to measure an angular velocity of the housing of the power tool about the rotational axis. The power tool includes an electronic processor coupled to the switching network and the movement sensor and configured to implement kickback control of the power tool. To implement the kickback control, the electronic processor is configured to control the switching network to drive the brushless DC motor, receive measurements of the angular velocity of the housing of the power tool from the movement sensor, determine that a plurality of the measurements of the angular velocity of the housing of the power tool exceed a rotation speed threshold, and control the switching network to cease driving of the brushless DC motor in response to determining that the plurality of the measurements of the angular velocity exceed the rotation speed threshold.
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公开(公告)号：US11607790B2
公开(公告)日：2023-03-21
申请号：US17231524
申请日：2021-04-15
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Jonathan E. Abbott , Timothy R. Obermann , John S. Dey, IV , Benjamin R. Suhr , Richard A. Ryer , Maxwell L. Merget , Douglas R. Fieldbinder
Abstract: Kickback control methods for power tools. One power tool includes a movement sensor configured to measure an angular velocity of the housing of the power tool about the rotational axis. The power tool includes an electronic processor coupled to the switching network and the movement sensor and configured to implement kickback control of the power tool. To implement the kickback control, the electronic processor is configured to control the switching network to drive the brushless DC motor, receive measurements of the angular velocity of the housing of the power tool from the movement sensor, determine that a plurality of the measurements of the angular velocity of the housing of the power tool exceed a rotation speed threshold, and control the switching network to cease driving of the brushless DC motor in response to determining that the plurality of the measurements of the angular velocity exceed the rotation speed threshold.
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公开(公告)号：US20250091188A1
公开(公告)日：2025-03-20
申请号：US18966455
申请日：2024-12-03
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Maxwell L. Merget , Jingyuan Liang , Michael R. Sande , Michael Halverson , Ian Duncan , Nicholas C. Mantych , Alex Huber
Abstract: A power tool includes a housing having a motor housing portion and a handle portion extending therefrom. An electric motor is positioned within the motor housing portion. The power tool also includes trigger switch configured to activate and deactivate the motor. The power tool further includes a non-contact mode selector switch that is separate from the trigger switch and configured to adjust an operational mode of the tool. The non-contact mode selector switch is positioned in a foot of the handle portion opposite the motor housing portion.
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Patent Agency Ranking
公开(公告)号：US12208501B2
公开(公告)日：2025-01-28
申请号：US18460967
申请日：2023-09-05
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Maxwell L. Merget , Jingyuan Liang , Michael R. Sande , Michael Halverson , Ian Duncan , Nicholas C. Mantych , Alex Huber
Abstract: A rotary power tool includes a housing having a motor housing portion and a handle portion extending therefrom. An electric motor is positioned within the motor housing portion. The rotary power tool further includes a trigger switch configured to activate and deactivate the motor. The rotary power tool further includes a non-contact speed selector switch that is separate from the trigger switch and configured to adjust a rotational speed of the motor. The non-contact speed selector switch is positioned in a foot of the handle portion opposite the motor housing portion.
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公开(公告)号：US12115644B2
公开(公告)日：2024-10-15
申请号：US18490295
申请日：2023-10-19
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Maxwell L. Merget , Douglas R. Fieldbinder , Jacob P. Schneider
Abstract: A trigger assembly for a power tool includes a housing, a moveable plunger extending from a surface of the housing, the movable plunger includes a first end disposed externally from the housing and a second end disposed internally within the housing. The trigger assembly further includes a trigger shoe coupled to the first end of the moveable plunger, and an arm including a first side that is moveably connected to the second end of the moveably plunger and a second side that is coupled to a magnet. The trigger assembly also includes a sensor configured to sense a magnetic field of the magnet. Movement of the trigger shoe rotates the magnet, and alters the magnetic field sensed by the sensor.
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公开(公告)号：US20240123590A1
公开(公告)日：2024-04-18
申请号：US18488202
申请日：2023-10-17
Applicant: Milwaukee Electric Tool Corporation
Inventor： Jonathan E. Abbott , Maxwell L. Merget , Levi D. Speckman , Carter H. Ypma
Abstract: A power tool includes an electronic controller including a processor and a memory, one or more attachments, a motor, and a sensor communicatively coupled to the electronic controller. The electronic controller obtains, via the sensor, one or more indications for the one or more attachments and determines information about a configuration of the one or more attachments based on the one or more indications. The electronic controller adaptively controls the motor based on the information about the configuration to, for example, prevent or mitigate a kickback occurrence.
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公开(公告)号：US20240083001A1
公开(公告)日：2024-03-14
申请号：US18462882
申请日：2023-09-07
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Douglas R. Fieldbinder , Maxwell L. Merget , Jacob P. Schneider , Mitchell A. Gibson
IPC: B25B29/02 , B25B23/142
CPC classification number: B25B29/02 , B25B23/1425
Abstract: A bolt tensioning tool includes a housing, an electric motor positioned within the housing, a tensioning assembly connectable to a bolt for applying tension thereto, and a bolt tension monitoring system. The bolt has a threaded portion and a surface. The bolt tension monitoring system includes a transmitter, a receiver, a sensor housing, and a controller. The sensor housing has an inner wall defining a recess that receives the surface of the bolt. The controller determines a dimension of the bold during a tensioning operation and determines the tension in the bolt based on the dimension. The bolt tension monitoring system monitors the tension of the bolt during a tensioning operation. The tension assembly applies tension to the bolt during the tensioning operation.
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公开(公告)号：US20220134532A1
公开(公告)日：2022-05-05
申请号：US17056090
申请日：2020-05-12
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Maxwell L. Merget , Douglas R. Fieldbinder , Jacob P. Schneider
Abstract: A trigger assembly for a power tool includes a housing, a moveable plunger extending from a surface of the housing, the movable plunger includes a first end disposed externally from the housing and a second end disposed internally within the housing. The trigger assembly further includes a trigger shoe coupled to the first end of the moveable plunger, and an arm including a first side that is moveably connected to the second end of the moveably plunger and a second side that is coupled to a magnet. The trigger assembly also includes a sensor configured to sense a magnetic field of the magnet. Movement of the trigger shoe rotates the magnet, and alters the magnetic field sensed by the sensor.
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