Michael Lyn Sell, 631346 Wolf Pack Cv, Piperton, TN 38017

6502316, Jan 7, 2003

May 25, 2001

09/864500

David C. Campbell - Bel Air MD
Gale A. Heslop - Carney MD
Lynn E. Lentino - Westminster MD
Michael R. Sell - Bel Air MD

Black Decker, Inc. - Newark DE

B23D 4500

30390, 83478, 74609

A viewing window for covering an aperture in a hand-held circular saw includes an optically transmissive member adapted to be coupled with the guard. The member is movable between a closed position, wherein the member substantially covers the aperture, and the open position, wherein the member at least partially uncovers the aperture, to allow the cleaning of the member. A structure is provided for biasing the member to the closed position.

6946758, Sep 20, 2005

Jul 10, 2003

10/616573

Hung T. Du - Reisterstown MD, US
Brandon L. Verbrugge - Towson MD, US
Joshua F. West - Towson MD, US
Michael R. Sell - Bel Air MD, US
Richard T. Walter - Baldwin MD, US
Earl M. Ortt - Bel Air MD, US
John C. Stone - Dallastown PA, US

Black & Decker Inc. - Newark DE

H02K001/04

310 43, 310235

Magnet wires wound in slots in a lamination stack of a dynamoelectric machine are encapsulated, in whole or in part, with thermally conductive plastic. Pre-formed features having a thermal conductivity higher than the thermally conductive plastic are insert molded when the plastic is molded. The pre-formed features may include a finned end cap and a fan. Alternatively, end domes of the plastic over end coils of the wound magnet wires have a metallic layer on them, such as by being metallized. The end domes can be formed with features which are also metallized. The thermally conductive plastic can have a phase change additive in it. The magnet wires can have a layer of heat activated adhesive that is activated when the plastic is molded. Slots in the lamination stack can include slot liners formed of thermally conductive plastic. A fan can be formed when the thermally conductive plastic is molded to encapsulate the magnet wires.

7096566, Aug 29, 2006

Jul 10, 2003

10/616871

Hung T. Du - Reisterstown MD, US
Brandon L. Verbrugge - Towson MD, US
Joshua F. West - Towson MD, US
Michael R. Sell - Bel Air MD, US
Richard T. Walter - Baldwin MD, US
David J. Smith - Glen Burnie MD, US
Earl M. Ortt - Bel Air MD, US
John C. Stone - Dallastown PA, US
Howard T. White - Wittman MD, US

Black & Decker Inc. - Newark DE

H02K 15/00
H02K 15/14
H02K 15/16

29596, 29592, 29597, 29598, 29605, 29606, 29733, 1563071, 2642722, 310 43, 310215, 310235

Magnet wires wound in slots in a lamination stack of a dynamoelectric machine are encapsulated, in whole or in part, with plastic. The plastic may be thermally conductive and have features molded therein that enhance heat transfer. The plastic may stiffen the armature and increase its critical speed. Characteristics of the plastic, its geometry and its distribution may be varied to adjust spinning inertia and resonant frequency of the armature. The magnet wires may be compressed into the slots, by application of iso-static pressure or by the pressure of the plastic being molded around them. Larger magnet wire can then be used which increases the power of the electric motor using the armature having the larger magnet wire. A two or three plate mold may be used to mold the plastic around the armature. Balancing features can be molded in place.

7215048, May 8, 2007

Aug 10, 2005

11/201083

Hung T. Du - Reisterstown MD, US
Richard T. Walter - Baldwin MD, US
Michael R. Sell - Bel Air MD, US
Joshua F. West - Towson MD, US

Black & Decker Inc. - Newark DE

H02K 1/04

310 43, 310 90

An electric motor has an armature and a stators. The armature has a lamination stack having slots therein. An internal shaft extends coaxially through the lamination stack. A plurality of magnet wires are wound in the slots of the lamination stack. A commutator is disposed on the armature shaft to which ends of the magnet wires are electrically coupled. The internal is shaft coupled to an external pinion and bearing journal by an insulated coupling. The magnet wires are at least partially encased in thermally conductive plastic. The magnet wires can have a layer of heat activated adhesive that is activated when the plastic is molded. Slots in the lamination stack can include slot liners formed of thermally conductive plastic. A fan can be formed when the thermally conductive plastic is molded to encapsulate the magnet wires. A power tool has the electric motor.

7464455, Dec 16, 2008

Aug 10, 2005

11/201073

Hung T. Du - Reisterstown MD, US
Richard T. Walter - Baldwin MD, US
Michael R. Sell - Bel Air MD, US
Joshua F. West - Towson MD, US

Black & Decker Inc. - Newark DE

H02R 15/00
H02R 1/04

29596, 29597, 29598, 29605, 29607, 29609, 310 43

A method for forming an armature for an electric motor includes securing a lamination stack having slots therein on an armature shaft. A commutator is secured on one end of the armature shaft. Magnet wires are wound in the slots in the lamination stack and ends of the magnet wires are secured to the commutator. Plastic is molded around the lamination stack, commutator and magnet wires. Excess plastic is machined off. The magnet wires can have a layer of heat activated adhesive that is activated when the plastic is molded. Slots in the lamination stack can include slot liners formed of thermally conductive plastic. A fan can be formed when the thermally conductive plastic is molded to encapsulate the magnet wires.

2006025, Nov 16, 2006

Jul 7, 2006

11/483322

Hung Du - Reisterstown MD, US
Brandon Verbrugge - Towson MD, US
Joshua West - Towson MD, US
Michael Sell - Bel Air MD, US
Richard Walter - Baldwin MD, US
David Smith - Glen Burnie MD, US
Earl Ortt - Bel Air MD, US
John Stone - Dallastown PA, US
Howard White - Wittman MD, US

H01R 43/10
H01F 7/06

029597000, 029606000, 264272200

An armature for an electric motor has a lamination stack on a shaft with a commutator mounted on one end of the shaft. Magnet wires wound in slots in the lamination stack, the commutator and armature shaft are at least partially encapsulated in a first plastic, such as by insert molding. The commutator has a commutator ring divided into a plurality of segments with slots between the segments that are filled with a second plastic when the commutator is made by molding a core of the second plastic, such as phenolic, in the commutator ring before the commutator ring is mounted on the armature shaft. Where the commutator is a tang type commutator, the commutator ring has notches at axial ends of the slots which is filled with the second plastic when the second plastic is molded. The mold used to mold the first plastic includes projections that extend between the tangs of the commutator and against the notches at axial ends of the slots of the commuter. The notches filled with the second plastic and the projections of the mold prevent plastic flash from getting into the slots of the commutator ring. In a stuffer type commutator, the commutator has inserts of insulative material extending part way into the slots of the commutator from an inner end of the commutator. The mold used to mold the first plastic has a portion that seals around the inner end of the commutator ring above the inserts to prevent plastic flash from getting into the slots between the segments of the commutator ring.

2006026, Nov 23, 2006

Jul 21, 2006

11/491454

Hung Du - Reistertown MD, US
Joshua West - Towson MD, US
Michael Sell - Bel Air MD, US

H02K 1/04

310234000, 310043000, 310261000

An armature for an electric motor has a lamination stack having slots in which magnet wires are wound. An armature shaft extends coaxially through the lamination stack and a commutator is disposed on the armature shaft to which ends of the magnet wires are electrically coupled. Plastic is molded around the magnet wires and the armature shaft to increase the stiffness of the armature shaft, which increases the critical frequency of the armature shaft. In an aspect, an electric motor has such an armature. In an aspect, a power tool has an electric motor having such an armature.

5217395, Jun 8, 1993

Nov 4, 1991

7/787543

R. Roby Bailey - Forest Hill MD
Frederick R. Bean - Hampstead MD
Martin P. Gierke - Baltimore MD
Dale C. Grieb - Fallston MD
Richard Nickels - Hampstead MD
Michael L. O'Banion - Westminster MD
Michael R. Sell - Bel Air MD
Alfred Schiazza - Easton MD
Richard T. Walter - Baldwin MD

Black & Decker, Co., Inc. - Towson MD

H01R 1718

439668

The cylindrical plug of a low-voltage, high current capacity connector assembly has an axially positioned sleeve wiping contact and a transversely positioned U-shaped channel member to provide two pairs of planar wiping contact surfaces parallel to the plug axis and substantially perpendicular to the plug housing surface. The socket component, which will accept standard low-voltage, low current car appliance plugs, includes an internally mounted, closed face pin contact and a barrel contact having depending ears positioned to engage the protruding sides of the plug U-shaped channel member. The socket also has an internal boss and housing lip to prevent electrical activation of a standard automotive cigarette lighter plug, and the plug component of the connector assembly has the sleeve contact recessed to prevent contact following insertion into a conventional cigarette lighter socket. The mobile power tool and appliance operating system includes a portable lead-acid battery pack having a high current capacity socket compatible with existing low current plugs used with appliances intended to operate from automotive cigarette lighter sockets. Matable high current capacity plugs are attached to power tools and appliances through retractable cords.