公开(公告)号：US20240109175A1

公开(公告)日：2024-04-04

申请号：US18477714

申请日：2023-09-29

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Paul F. Daily ,  Benjamin J. Farley ,  Levi D. Speckman ,  Daniel R. Ertl ,  Mitchell G. Menard

IPC: B25F5/02 ,  B25F5/00

CPC classification number: B25F5/026 ,  B25F5/001

Abstract: A power tool includes a housing, a drive mechanism supported within the housing, a spindle operatively coupled to an output of the drive mechanism such that torque from the drive mechanism rotates the spindle about an axis, and an accessory removably coupled to the housing. The drive mechanism is configured to supply up to a first maximum torque to the spindle when the accessory is removed from the housing. The drive mechanism is configured to supply up to a second maximum torque to the spindle greater than the first maximum torque when the accessory is coupled to the housing.

公开(公告)号：US20220295657A1

公开(公告)日：2022-09-15

申请号：US17694969

申请日：2022-03-15

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Mauricio Builes Zapata ,  Timothy J. Bartlett ,  Kevin A. McLachlan ,  Andrew D. Van Hoorn ,  Daniel R. Ertl ,  Nicholas C. Mantych

IPC: H05K7/14 ,  H05K7/20 ,  H02K7/14 ,  H02K11/33

Abstract: A potting boat adapted to receive a printed circuit board is described. The boning boat includes a base plate and a plurality of sidewalls projecting from the base plate, a plurality of cooling fins, a recessed portion, and an arm. The plurality of cooling fins are formed on one of the sidewalls. The cooling fins extend laterally outward from the one of the sidewalls. The recessed portion is in a first sidewall of the plurality of sidewalls, and extends laterally inward. The arm has a first end fixed to the sidewall and an opposite, second end not connected with the first sidewall. The arm at least partially overlays the recessed portion to define a void within which electrical wires connected to the printed circuit board are retained proximate the first sidewall.

公开(公告)号：US11318589B2

公开(公告)日：2022-05-03

申请号：US16278382

申请日：2019-02-18

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Jacob P. Schneider ,  James A. Yaccarino ,  Daniel R. Ertl

IPC: B25B21/02 ,  B25D11/06 ,  B25D11/04 ,  B25B23/147 ,  B25D16/00

Abstract: An impact tool includes a housing, an electric motor supported in the housing, and a drive assembly for converting a continuous torque input from the motor to consecutive rotational impacts upon a workpiece capable of developing at least 1,700 ft-lbs of fastening torque. The drive assembly includes an anvil rotatable about an axis and having a head adjacent a distal end of the anvil. The head has a minimum cross-sectional width of at least 1 inch in a plane oriented transverse to the axis. The drive assembly also includes a hammer that is both rotationally and axially movable relative to the anvil for imparting the consecutive rotational impacts upon the anvil, and a spring for biasing the hammer in an axial direction toward the anvil.

公开(公告)号：US10128723B2

公开(公告)日：2018-11-13

申请号：US15203895

申请日：2016-07-07

Applicant: Milwaukee Electric Tool Corporation

Inventor： Matthew J. Mergener ,  Daniel R. Ertl

IPC: H05K7/20 ,  H02K7/14 ,  H05K1/18 ,  H02K11/33 ,  H01L23/34 ,  H02K9/22

Abstract: A power tool and a printed circuit board assembly (“PCBA”) for the power tool. The PCBA includes, for example, a printed circuit board (“PCB”), a heat sink, a spacer between the PCB and the heat sink, and a gap pad. The PCB and the heat sink are fastened to one another via fasteners so the spacer absorbs excess forces torsional forces from torques applied to the fasteners. The gap pad is placed within an opening or recess of the spacer to contact one or more FETs on the PCB. In some embodiments, the PCBA includes a second heat sink or rigid member on the opposite side of the PCB than the spacer to further distribute excess torsional forces from torques applied to the fasteners.