Dennis H Sigl

US Patent:

6611189, Aug 26, 2003

Filed:

May 22, 2001

Appl. No.:

09/862743

Inventors:

Dennis Sigl - Greenville WI

Assignee:

Illinois Tool Works Inc. - Glenview IL

International Classification:

H01F 2730

US Classification:

336198, 336192, 336208

Abstract:

A welding-type power supply transformer including a bobbin, a first coil and a second coil is disclosed. The first coil is wound around the bobbin. The second coil is magnetically coupled to the first coil.

US Patent:

6633485, Oct 14, 2003

Filed:

Nov 20, 2002

Appl. No.:

10/065794

Inventors:

Dennis R. Sigl - Greenville WI
Richard Mark Achtner - Neenah WI

Assignee:

Illinois Tool Works Inc. - Glenview IL

International Classification:

H05K 720

US Classification:

361718, 2989003, 257727, 361704

Abstract:

A snap-in heat sink assembly that has an injection molded one piece frame having a plurality of spring members extending outwardly with protrusions at the free ends thereof. The assembly has a spring located against the frame and an electronic component is located atop of the spring. A heat sink has lateral surfaces with elongated grooves formed along those lateral surfaces. The sink is affixed to the frame by a simple step of inserting the heat sink into the space between the spring members such that the protrusions of the spring members snap into the grooves when the heat sink is in the desired location. By sandwiching the spring between the frame and the electronic component, the spring creates a bias to force the electronic component against the heat sink to assure good conductivity of heat from the electronic component through the heat sink.

US Patent:

6794976, Sep 21, 2004

Filed:

Dec 24, 2002

Appl. No.:

10/248181

Inventors:

Dennis R. Sigl - Greenville WI

Assignee:

Illinois Tool Works Inc. - Glenview IL

International Classification:

H01F 2728

US Classification:

336170, 336198, 336192, 336150, 219670

Abstract:

A high frequency transformer for a welding-type device is provided. The transformer includes a pair of ferrite cores and a bobbin configured to receive and support the pair of ferrite cores. A primary winding assembly, as well as, a secondary winding assembly is provided. The secondary winding assembly is in parallel with a center topped tertiary winding assembly. The tertiary winding assembly includes a number of coil sections such that each coil section is wrapped around an outer leg of a ferrite core.

US Patent:

6864777, Mar 8, 2005

Filed:

Jun 13, 2003

Appl. No.:

10/461526

Inventors:

Dennis Sigl - Greenville WI, US

Assignee:

Illinois Tool Works Inc. - Glenview IL

International Classification:

H01F027/30

US Classification:

336208, 336198, 336192

Abstract:

A welding-type power supply transformer including a bobbin, a first coil and a second coil is disclosed. The first coil is wound around the bobbin. The second coil is magnetically coupled to the first coil.

US Patent:

7046111, May 16, 2006

Filed:

Nov 18, 2002

Appl. No.:

10/065773

Inventors:

Dennis R. Sigl - Greenville WI, US

Assignee:

Illinoise Tool Works Inc. - Glenview IL

International Classification:

H01F 27/30

US Classification:

336198, 336178

Abstract:

The present invention is directed to a bobbin for an inductor assembly that is preferably molded of a plastic material incorporating a flange to maintain a uniform and constant gap or separation between a pair of ferrite E-cores. Preferably, the bobbin includes a number of hollow bosses designed to receive self-tapping screws so as to directly mount the bobbin to a mounting plate. Additionally, a pair of tempered brass spring clips is used to secure the cores to the bobbin. To reduce breakage of the bobbin, each clip engages the bobbin perpendicular to the width of the ferrite core.

US Patent:

8188708, May 29, 2012

Filed:

Sep 11, 2007

Appl. No.:

11/853094

Inventors:

Kenneth Altekruse - Appleton WI, US
James D. Kimball - Appleton WI, US
Dennis Sigl - Greenville WI, US
Bernard J. Vogel - Troy OH, US
Jeffrey Lonigro - Appleton WI, US

Assignee:

Illinois Tool Works Inc. - Glenview IL

International Classification:

H02J 7/00

US Classification:

320108, 320104, 320107

Abstract:

A battery-charging system includes a power supply having a high-frequency transformer and is configured to deliver a battery charging power to charge at least one battery. The high-frequency transformer has a bobbin including an elongated top and bottom surfaces and first and second substantially semi-circular end surfaces connecting the top surface with the bottom surface to form an elongated first coil winding surface having a central axis. A first coil is wound around the first coil winding surface, and a second coil is magnetically coupled to the first coil and wound thereto.

US Patent:

20040201964, Oct 14, 2004

Filed:

Jul 6, 2003

Appl. No.:

10/604252

Inventors:

Dennis Sigl - Greenville WI, US
Richard Achtner - Neenah WI, US

International Classification:

H05K007/20

US Classification:

361/704000

Abstract:

A snap-in heat sink assembly that has an injection molded one piece frame having a plurality of spring members extending outwardly with protrusions at the free ends thereof. The assembly has a spring located against the frame and an electronic component is located atop of the spring. A heat sink has lateral surfaces with elongated grooves formed along those lateral surfaces. The sink is affixed to the frame by a simple step of inserting the heat sink into the space between the spring members such that the protrusions of the spring members snap into the grooves when the heat sink is in the desired location. By sandwiching the spring between the frame and the electronic component, the spring creates a bias to force the electronic component against the heat sink to assure good conductivity of heat from the electronic component through the heat sink.

US Patent:

59021500, May 11, 1999

Filed:

Jan 9, 1997

Appl. No.:

8/780992

Inventors:

Dennis R. Sigl - Appleton WI
Richard W. Beeson - Appleton WI
Michael A. Sammons - Appleton WI
Leonid B. Soroka - Whitefish Bay WI

Assignee:

Illinois Tool Works Inc - Glenview IL

International Classification:

H01R13/40

US Classification:

439587

Abstract:

A power supply connector includes a cable receptacle, a front bulkhead insulator and a rear bulkhead insulator. The bulkhead insulators are mounted on the cable receptacle and the power supply chassis. At least one O ring is disposed between the front and rear bulkhead insulators, to seal out water. The front bulkhead insulator includes a stepped portion that mates with a stepped portion on the rear bulkhead insulator. The front bulkhead insulator provides an elongated path from the chassis to the cable receptacle. Also, an O ring is disposed between the cable receptacle and the front bulkhead insulator, to seal out water.