Black Decker Inc.

Michael A Zemlok

Weston J Van Wambeke

Earl M Ortt

Michael Jeffrey Agnes

Keith Moore

David J Smith

Brandon L Verbrugge

Hung T Du

Robert G Kusmierski

James B Watson

Mark D Williams

Sean W Flickinger

Christofer E Beam

Robert Bradus

Horst Grossmann

Kevin S Agan

A modular power tool incorporates a modular drive system and modular handle set that is reversible for use with both a left hand and right hand configuration. The modular drive system and handle set of the modular power tool of this invention reduces the need for derivative circular saw designs by introducing common components.

Modular power tool

An electric motor has a field assembly, such as a stator, for a dynamoelectric machine has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated with insulating sleeves or insulating slot liners. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed.

Electric motor having a field assembly with slot insulation

A modular power tool () incorporates a modular drive system () and modular handle set () that is reversible or use with both a left and right hand configuration. The modular drive system () and handle set () of the modular power tool () of this invention reduces the need for derivative circular saw designs by introducing common components.

An electric motor has a field assembly, such as a stator, has field coils that are wound to a net shape. Lead wires are brought out from the ends of each field coil. The field coils are insulated. The field coils are assembled with stator core pieces, such as pole pieces and return path pieces, into the stator. The stator core pieces are formed prior to being assembled with the field coils. In an aspect of the invention, the pole pieces and return path pieces are separately formed and then assembled together with the field coils, which have also been separately formed. The pole pieces and return path pieces are formed with mating features that are mated to hold the pole pieces and return path pieces together.

Electric motor with field assemblies having core pieces with mating features

Method of making an electric motor

A power tool motor pack that includes common components adapted to couple to a first component customized for a first power tool application and to couple to a second component customized for a second power tool application. When the motor pack is used in the first power tool application, the common components are coupled to the first customized component. When the motor pack is used in the second power tool application, the common components are coupled to the second customized component.

Flexible power tool motor pack and method of making the same

A end cap and brush box assembly for a mechanically commutated electric motor including an end cap constructed from high temperature material which also has resilient mechanical properties. The end cap and brush box assembly includes a two piece brush box having a first lock tab and a second lock tab for securing the two piece brush box to the end cap. The two piece brush box has a brush hood secured to a base plate. The base plate has a shunt welding plate for welding to an electrical shunt of a brush and a connector for connecting to an electrical lead coupled to a power source.

End cap and brush box assembly

Circular saw

Circular saw handle

A battery pack includes a first cell having top and bottom terminals, a first support disposed on the top terminal, and a second support disposed on the bottom terminal. At least one of the first and second supports may include a rib for maintaining the first cell in place. The first and second supports may lock together. Accordingly, the first support may include a first protrusion, and the second support may include a second protrusion which engages the first protrusion. The battery pack may also include a pad disposed on at least one of the top and bottom terminals.

Growing community of inventors

Towson, MD, United States of America

Michael A Zemlok