Black Decker Inc.

Seth M Robinson

Joshua M Lewis

Mark R Poetzl

Sean R Templeton

John E Buck

Daniele C Brotto

Andrew E Seman, Jr

Joseph Patrick Kelleher

David A Carrier

Paul S White

William F Gallagher

Madhur M Purohit

Marcell E Coates

Timothy J Seeley

Nathan J Cruise

Andrew E Seman

Mehdi T Abolhassani

James J Kenney

Daniel L Krout

Rouse Roby Bailey, Jr

Shailesh P Waikar

Erik A Ekstrom

William D Spencer

John K Horky

Ren H Wang

Pradeep M Pant

Randall Puzzitiello

Neal Hassel

Troy A Cayon

Alvero Haesbaert

Samantha Cunningham

Rouse Roby Bailey

Jr Andrew E Seman

Jr Rouse Roby Bailey

William M Spencer

A power tool is provided including a gear case having a spindle, a motor case connected to a rear end of the gear case along a longitudinal axis; a handle portion extending from a rear end of the motor case along the longitudinal axis; a motor housed inside the motor case; a fan in rotational connection with the motor; at least one air intake arranged at least one of the motor case or the handle portion near the rear end of the motor case; and a power module including power switches for driving the motor and a heat sink. The power module is housed in at least one of the motor case or the handle portion near the rear end of the motor case such that rotation of the fan causes air flow to enter through the air intake and flow near the heat sink and through the motor.

Brushless motor system for power tools

Impact tool

Electric connector

A power tool is provided including a gear case having a spindle, a motor case connected to a rear end of the gear case, a handle portion attached to a rear end of the motor case, and a motor housed inside the motor case. The motor includes a stator, a rotor rotationally arranged inside the stator, and a fan in rotational connection with the rotor. At least one air intake is arranged at least one of the motor case or the handle portion near the rear end of the motor case. A power module including power switches and a heat sink is housed in at least one of the motor case or the handle portion near the rear end of the motor case such that rotation of the fan causes air flow to enter through the air intake and flow near the heat sink and through the motor.

Power tool

A portable power supply includes a housing, and power circuitry providing an output AC waveform having a first positive voltage step level, a second higher positive voltage step level, a third lower positive voltage step level, a fourth negative voltage step level, a fifth higher negative voltage step level, and a sixth lower negative voltage step level.

Battery based portable power supply

Growing community of inventors

Henryville, MD, United States of America

Seth M Robinson