Dennis J Grzybowski

US Patent:

D501823, Feb 15, 2005

Filed:

Nov 22, 2002

Appl. No.:

29/171438

Inventors:

Todd W. Johnson - Wauwatosa WI, US
Dennis J. Grzybowski - New Berlin WI, US
Mark A. Kubale - West Bend WI, US

Assignee:

Milwaukee Electric Tool Corporation - Brookfield WI

International Classification:

1302

US Classification:

D13107

US Patent:

7157882, Jan 2, 2007

Filed:

Nov 20, 2003

Appl. No.:

10/720027

Inventors:

Todd W. Johnson - Wauwatosa WI, US
Dennis J. Grzybowski - New Berlin WI, US
Mark A. Kubale - West Bend WI, US
Jay J. Rosenbecker - Menomonee Falls WI, US
Karl F. Scheucher - Waite Hill OH, US
Gary D. Meyer - Waukesha WI, US
Jeffrey M. Zeiler - Delafield WI, US
Kevin L. Glasgow - Lomira WI, US

Assignee:

Milwaukee Electric Tool Corporation - Brookfield WI

International Classification:

H01M 10/44
H01M 10/46

US Classification:

320134

Abstract:

A system and method for battery protection. In some aspects, a method of conducting an operation including a battery pack, includes the acts of monitoring a first battery pack condition at a first monitoring rate, determining when a second battery pack condition reaches a threshold, after the second battery pack condition reaches the threshold, monitoring the first battery pack condition at a second monitoring rate, the second monitoring rate being different than the first monitoring rate. In some aspects, a method of conducting an operation including a battery, the battery including a cell having a voltage, power being transferable between the cell and the electrical device, a controller operable to control a function of the battery pack, the controller being operable with a voltage at least one of equal to and greater than an operating voltage threshold, the cell being operable to selectively supply voltage to the controller, includes the act of enabling the controller to operate when the voltage supplied by the cell is below the operating voltage threshold.

US Patent:

7157883, Jan 2, 2007

Filed:

Dec 30, 2005

Appl. No.:

11/322738

Inventors:

Todd W. Johnson - Wauwatosa WI, US
Dennis J. Grzybowski - New Berlin WI, US
Mark A. Kubale - West Bend WI, US
Jay J. Rosenbecker - Menomonee Falls WI, US
Karl F. Scheucher - Waite Hill OH, US
Gary D. Meyer - Waukesha WI, US
Jeffrey M. Zeiler - Delafield WI, US
Kevin L. Glasgow - Lomira WI, US

Assignee:

Milwaukee Electric Tool Corporation - Brookfield WI

International Classification:

H01M 10/44

US Classification:

320150

Abstract:

A system and method for battery protection. In some aspects, a method of a method for operating a battery pack. The battery pack having a battery pack condition, and the battery pack condition having a range. The method including the acts of conducting an operation including the battery pack, measuring a first measurement of the battery pack condition, measuring a second measurement of the battery pack condition, averaging the first measurement and the second measurement to provide an average measurement and if the average measurement is within the range, continuing the operation including the battery pack. At least one of the first measurement and the second measurement being outside of the range.

US Patent:

7164257, Jan 16, 2007

Filed:

Dec 30, 2005

Appl. No.:

11/322862

Inventors:

Todd W. Johnson - Wauwatosa WI, US
Dennis J. Grzybowski - New Berlin WI, US
Mark A. Kubale - West Bend WI, US
Jay J. Rosenbecker - Menomonee Falls WI, US
Karl F. Scheucher - Waite Hill OH, US
Gary D. Meyer - Waukesha WI, US
Jeffrey M. Zeiler - Delafield WI, US
Kevin L. Glasgow - Lomira WI, US

Assignee:

Milwaukee Electric Tool Corporation - Brookfield WI

International Classification:

H01M 10/46

US Classification:

320134

Abstract:

A system and method for battery protection. In some aspects, a battery pack including a housing, a cell supported by the housing and power being transferable between the cell and an electrical device, a circuit supported by the housing and operable to control a function of the battery pack, and a heat sink in heat transfer relationship with the circuit and operable to dissipate heat from the circuit.

US Patent:

D538618, Mar 20, 2007

Filed:

Nov 1, 2004

Appl. No.:

29/216278

Inventors:

David P. Serdynski - Waukesha WI, US
Boyd J. Miller - Mequon WI, US
Scott D. Bublitz - Hartland WI, US
Troy C. Thorson - Waukesha WI, US
Thomas R. Bednar - Pewaukee WI, US
David B. Griep - Rubicon WI, US
Nancy Uehlein-Proctor - Nashotah WI, US
Dennis J. Grzybowski - New Berlin WI, US
Jeffery S. Holly - Menomonee Falls WI, US
Jeffrey C. Hessenberger - Neosho WI, US
Mark A. Kubale - West Bend WI, US
Todd W. Johnson - Wauwatosa WI, US
Jonathan P. Lobert - Sussex WI, US
Scott H. Micoley - Cedarburg WI, US

Assignee:

Milwaukee Electric Tool Corporation - Brookfield WI

International Classification:

0805

US Classification:

D 8 68, D8 70

US Patent:

7253585, Aug 7, 2007

Filed:

Nov 24, 2003

Appl. No.:

10/721800

Inventors:

Todd W. Johnson - Wauwatosa WI, US
Dennis J. Grzybowski - New Berlin WI, US
Mark A. Kubale - West Bend WI, US
Jay J. Rosenbecker - Menomonee Falls WI, US
Karl F. Scheucher - Waite Hill OH, US
Gary D. Meyer - Waukesha WI, US
Jeffrey M. Zeiler - Pewaukee WI, US
Kevin L. Glasgow - Lomira WI, US

Assignee:

Milwaukee Electric Tool Corporation - Brookfield WI

International Classification:

H01M 10/46

US Classification:

320112

Abstract:

A method for conducting an operation including a power tool battery pack. The battery pack can include a housing, a first cell supported by the housing and having a voltage, and a second cell supported by the housing and having a voltage. The battery pack also can be connectable to a power tool and be operable to supply power to operate the power tool. The method can include discharging one of the first cell and the second cell until the voltage of the one of the first cell and the second cell is substantially equal to the voltage of the other of the first cell and the second cell.

US Patent:

7342381, Mar 11, 2008

Filed:

Dec 28, 2006

Appl. No.:

11/617329

Inventors:

Todd W. Johnson - Wauwatosa WI, US
Dennis J. Grzybowski - New Berlin WI, US
Mark A. Kubale - West Bend WI, US
Jay J. Rosenbecker - Menomonee Falls WI, US
Karl F. Scheucher - Waite Hill OH, US
Gary D. Meyer - Waukesha WI, US
Jeffrey M. Zeiler - Delafield WI, US
Kevin L. Glasgow - Lomira WI, US

Assignee:

Milwaukee Electric Tool Corporation - Brookfield WI

International Classification:

H02J 7/00

US Classification:

320136, 320114

Abstract:

A system and method for battery protection. In some aspects, a power tool battery pack operable to supply power to a power tool includes a controller. The controller is operable to sample a battery pack condition in at least a first sampling mode and a second sampling mode to produce a plurality of measurements. The controller is further operable to average the plurality of measurements to produce an averaged measurement, and operable to modify operation of the battery pack when the averaged measurement is outside a specified range.

US Patent:

7492124, Feb 17, 2009

Filed:

Dec 28, 2006

Appl. No.:

11/617393

Inventors:

Todd W. Johnson - Wauwatosa WI, US
Dennis J. Grzybowski - New Berlin WI, US
Mark A. Kubale - West Bend WI, US
Jay J. Rosenbecker - Menomonee Falls WI, US
Karl F. Scheucher - Waite Hill OH, US
Gary D. Meyer - Waukesha WI, US
Jeffrey M. Zeiler - Delafield WI, US
Kevin L. Glasgow - Lomira WI, US

Assignee:

Milwaukee Electric Tool Corporation - Brookfield WI

International Classification:

H01M 10/46

US Classification:

320107

Abstract:

A method and system for battery protection. In some aspects, a battery pack configured to be interfaced with a power tool includes a housing, a cell, a controller, and a circuit. The circuit is operable to enable the controller to operate when the voltage supplied by the cell to the controller is below an operating voltage threshold off the controller.