HIGH-POWER CORDLESS, HAND-HELD POWER TOOL INCLUDING A BRUSHLESS DIRECT CURRENT MOTOR
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United States of America Patent
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Issued Date -
Nov 2, 2023
app pub date -
Jun 9, 2023
filing date -
Nov 13, 2012
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Abstract
A cordless, hand-held power tool, such as a hammer drill/driver, a 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 a 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).
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