Invention Grant
- Patent Title: High-power cordless, hand-held power tool including a brushless direct current motor
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Application No.: US17499065Application Date: 2021-10-12
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Publication No.: US11370099B2Publication Date: 2022-06-28
- Inventor: Brandon L. Verbrugge , Matthew J. Mergener , Matthew P. Wycklendt , Jeffrey C. Hessenberger , Dennis J. Grzybowski
- Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
- Applicant Address: US WI Brookfield
- Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
- Current Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
- Current Assignee Address: US WI Brookfield
- Agency: Michael Best & Friedrich LLP
- Main IPC: B25F5/00
- IPC: B25F5/00 ; B25F5/02

Abstract:
A cordless, hand-held power tool, such as a hammer drill/driver, an impact driver, an impact wrench, etc., that includes a brushless direct current (“BLDC”) motor. Each of the hand-held power tool includes a removable and rechargeable battery pack, electronics, and a BLDC motor that have been designed and balanced to produce high-performance-capable (e.g., high-power, high-current, high-torque) hand-held power tool. The hand-held power tool is capable of delivering high instantaneous (i.e., short duration) current to the BLDC motor for short-duration high power operation and high continuous (i.e., long duration) current to the BLDC motor for long duration high power operation. Additionally, the short and long duration power is capable of being provided in a smaller (in size) and lighter (in weight) package than any hand-held power tool before it.
Public/Granted literature
- US20220029506A1 HIGH-POWER CORDLESS, HAND-HELD POWER TOOL INCLUDING A BRUSHLESS DIRECT CURRENT MOTOR Public/Granted day:2022-01-27
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