Black Decker Inc.

Robert J Marcinkowski

Earl M Ortt

Daniel Joseph White

Steven J Phillips

Geoffrey Stephen Howard

Nathan J Osborne

Michelle Lynn Bowers

Brandon L Verbrugge

Nathan J Cruise

Alexis W Johnson

Michael Kenneth Forster

Michael W Roberts

Matthew J Velderman

Michael Jeffrey Agnes

Robert B Williams

Bradley Jon Mealy

Mark D Williams

Michael W Roberts, Jr

Brent Austin Kuehne

Hung T Du

Michael Varipatis

Rouse Roby Bailey, Jr

Michael C Doyle

Michael P Kunz

Michael C Bowers

Christopher R Held

Adam M Casalena

Ralphy A Louis

R Roby Bailey, Jr

Bhanu V Gorti

Tony J Agro

Rouse Roby Bailey

It is common for a power tool system from a manufacturer to include a battery pack that is designed and configured to mate and operate with at least one power tool and a battery charger. However, as systems have evolved it has become desirable to provide a battery pack that is designed and configured to mate and operate with at least one power tool and a first battery charger but not a second battery charger. The present disclosure provides a battery pack including a housing, a terminal block, a plurality of terminals, and a mechanical lockout for allowing engagement with a power tool and a first battery charger while preventing engagement with a second battery charger.

Battery pack for cordless devices

A power tool/battery pack combination includes an electric motor, one or more electrochemical cells, and a capacitive element. The electric motor is connected in series to a first switch. The series combination of the electric motor and the first switch is connected to a first terminal and a second terminal. The one or more electrochemical cells are connected across a third terminal and a fourth terminal. The third terminal and the fourth terminal are coupled respectively to the first terminal and the second terminal. The one or more electrochemical cells supply power to the electric motor via the first switch. The capacitive element includes one or more capacitors. The capacitive element is connected across the third terminal and the fourth terminal. The capacitive element is capable of storing inductive energy generated by the one or more electrochemical cells.

System and method to divert inductive energy from cells

An electronic power apparatus includes a housing, a pair of input power pins and a pair of output power pins, and power components mounted on a power circuit board and electrically connected to the input power pins and the output power pins to modulate a supply of power from the input power pins to the output power pins. A control unit of the electronic power apparatus is disposed at a distance from the power circuit board and substantially parallel to the power circuit board, both the control circuit board and the power circuit board arranged inside the housing. A user-actuated input unit is provided including a variable-speed actuator a first portion of which is at least partially arranged outside the housing to be engageable by a user and a second portion of which is slidably sandwiched between the power circuit board and the control circuit board along an axis substantially parallel to the power circuit board and the control circuit board.

Electronic switching module for a power tool

A battery pack including a housing, a terminal block, a printed circuit board electrically connected to the terminal block, at least one battery cell, and a spark gap device on the printed circuit board to provide electrostatic discharge protection and disposed between the printed circuit board and the terminal block.

An electronic power apparatus includes a housing, a pair of input power pins and a pair of output power pins, and power components mounted on a power circuit board and electrically connected to the input power pins and the output power pins to modulate a supply of power from the input power pins to the output power pins. A control unit of the electronic power apparatus is arranged on a control circuit board disposed at a distance from the power circuit board inside the housing. A user-actuated input unit of the electronic power apparatus includes a variable-speed actuator having a first portion at least partially arranged outside the housing to be engageable by a user and a second portion movably arranged between the power circuit board and the control circuit board.

A battery pack comprising a housing having an first housing portion and a second housing portion and an electrostatic discharge protection device to prevent electrostatic discharge from entering the housing.

An internal component arrangement within a battery pack housing having multiple cells and adapted for cordless power tools may provide desired mechanical support to constrain the cells. The housing with internal component arrangement is configured to route sensing wires from the cells to an electronics module of the pack.

Battery pack and internal component arrangement within the battery pack for cordless power tool system

An electrically conductive brush box is located against the upper surface of a base and has crimping tabs located against an oppositely disposed crimping surface. The base is formed of high temperature resistant plastic. A field case housing has a seat with a retention member adapted to retain the base against the seat. A screw is threaded into the field case housing such that the head presses against a surface of the base member to retain the base member in the seat. The screw member is located in non-contacting relationship with the electrically conductive brush box. A spacer member is adapted to space the portion of the crimping tab against the crimping surface away from the field case housing. The brush box includes a biasing member holder and the crimping tabs are located adjacent the holder.

Electric motor brush assembly

A field case housing has a substantially cylindrical wall segment, an end segment and a flange all having a substantially constant wall thickness. The flange has reinforcing ribs connected to the wall segment and aperture reinforcing bosses. The end segment, the wall segment and the flange are formed as a single, integral part adapted to reduce warping of the housing during molding. A cylindrical guide member is located in the field case housing and a conical guide member is located in the fan baffle. The cylindrical guide member is adapted to insure a screw passing through the cylindrical guide member is guided to a point within the conical guide member. The fan baffle has a transverse wall with an aperture and guide walls extending adjacent the aperture. The guide walls are adapted to guide an armature past the magnets without contacting and damaging them.

Electric motor assembly

A power tool includes a motor with a flux ring. The flux ring includes a ring member with a first and second end. The ends are positioned with respect to one another such that the ends move towards and away from one another during compressing and expanding of the ring. At least one anchor is unitarily formed with the ring. A pair of magnets are coupled with unitarily formed anchors to couple the pair of magnets with the ring. The magnets are coupled with the ring such that the ring may be compressed and expanded with the magnets secured in the ring.

Permanent magnet motor flux rings

A motor end cap and output device housing is provided that includes a motor end plate having an output device attachment area and a output device housing having a motor end plate attachment area. The output device attachment area includes a locking tab that mates with a slot portion in the output device housing to interlock the two together. As a result, the motor end plate can be conveniently attached to the output device housing without requiring extra fasteners.

Growing community of inventors

Cockeysville, MD, United States of America

Robert J Marcinkowski