John C Wojcik

US Patent:

6375781, Apr 23, 2002

Filed:

Oct 28, 1999

Appl. No.:

09/429147

Inventors:

John P. Wojcik - Long Grove IL
Deepak H. Mehta - Naperville IL
Donald L. Van Erden - Wildwood IL

Assignee:

Illinois Tool Works Inc. - Glenview IL

International Classification:

B32B 3100

US Classification:

156229, 156495, 156555, 428 98

Abstract:

An apparatus and high speed process for heating and stretching a film having a bridle mechanism comprising a first heated roll and a second heated roll. The film is stretched as the film is transferred from the first heated roll to the second heated roll which rotates at a speed greater than the speed at which the first heated roll rotates. The film is fed into the bridle mechanism at a rate of about 1,500 fpm to about 2,500 fpm wherein it is stretched to a length that is up to about 450% greater than its initial, pre-stretched length. The increased contact between the large diameter heated rolls and the film and the short draw gap between the two heated rolls result in a highly stretched film having minimal neck-in.

US Patent:

6592699, Jul 15, 2003

Filed:

Oct 28, 1999

Appl. No.:

09/429390

Inventors:

Deepak H. Mehta - Naperville IL
John P. Wojcik - Long Grove IL
Eldridge Presnell - Round Lake Beach IL
Donald L. Van Erden - Wildwood IL

Assignee:

Illinois Tool Works, Inc. - Glenview IL

International Classification:

B31F 100

US Classification:

156227, 88459, 884771, 88494, 88555, 428126, 493243, 493442

Abstract:

A highly stretched film has permanently heat-sealed edges that are nearly invisible. A folding apparatus folds the edge portions of a film to form folded edges. The folded film then is passed through a bridle mechanism having two heated rolls. A series of nips apply pressure to the folded film as it is heated by the heated rolls. The nip pressure, combined with the heat imparted by the heated rolls, causes thermal welding of the folded edges resulting in permanent heat-sealed edges. Because the film edges are folded prior to the hot-stretching, the hot stretch process performs dual functions of stretching the film and heat sealing the folded edges. The resulting stretched film has permanently heat-sealed edges that do no separate, and which prevent tearing of the film edges during subsequent processing and use.

US Patent:

7055299, Jun 6, 2006

Filed:

Apr 21, 2004

Appl. No.:

10/828229

Inventors:

Yrjö Suolahti - Mynämäki, FI
John Wojcik - South Barrington IL, US
Jan Toczycki - Chicago IL, US

Assignee:

Illinois Tool Works Inc. - Glenview IL

International Classification:

B65B 11/02

US Classification:

53588

Abstract:

In a wrapping machine for wrapping a plastic foil web (F) around an object, a gripping and cutting device () is connected to a lifting frame () supporting a circular guide track of a foil dispenser () so as to be vertically movable with the lifting frame.

US Patent:

7111439, Sep 26, 2006

Filed:

Jul 6, 2005

Appl. No.:

11/174499

Inventors:

Yrjo Suolahti - Mynämäki, FI
John Wojcik - South Barrington IL, US
Jan Toczycki - Chicago IL, US

Assignee:

Illinois Toll Works Inc. - Glenview IL

International Classification:

B65B 11/02

US Classification:

53399, 53588

Abstract:

A wrapping machine and a method for wrapping a plastic foil web (F) around an object. A gripping and cutting device () is connected to a lifting frame () supporting a circular guide track of a foil dispenser () so as to be vertically movable with the lifting frame. In the method, the wrapping action is started from a freely chosen point relative to the vertical direction of the object and ended correspondingly at a freely chosen point relative to the vertical direction of the object.

US Patent:

20080173236, Jul 24, 2008

Filed:

Apr 10, 2006

Appl. No.:

11/911258

Inventors:

John P. Wojcik - South Barrington IL, US
Ghaffar Kazkaz - Rolling Meadows IL, US

International Classification:

B05B 12/14
B05C 11/02
F16L 55/46
B08B 9/04

US Classification:

118302, 134 8, 134166 C

Abstract:

A shuttle push system () is provided with a displacing object () for insertion into a supply tube () and removal from the supply at spaced locations. A return tube moves () the displacing object between the position at which it is removed () from the supply tube and the position () at which it is inserted into the supply tube.

US Patent:

20080202413, Aug 28, 2008

Filed:

Apr 12, 2006

Appl. No.:

11/911269

Inventors:

David M. Seitz - Riga MI, US
John P. Wojcik - South Barrington IL, US
Ghaffar Kazkaz - Rolling Meadows IL, US
James P. Baltz - Waterville OH, US
Roger T. Cedoz - Curtice OH, US

Assignee:

ILLINOIS TOOL WORKS INC. - Glenview IL

International Classification:

B05B 7/24

US Classification:

118300

Abstract:

A canister () for a coating applicator system has a flexible barrier separating a coating-containing region in the canister () from a region containing a force applicator for moving the barrier to dispense the coating. While the volumes of each region change upon movement of the barrier, surfaces defining the regions remain in the same region through out all movement of the barrier.

US Patent:

20080314313, Dec 25, 2008

Filed:

Apr 12, 2006

Appl. No.:

11/911306

Inventors:

Ghaffar Kazkaz - Rolling Meadows IL, US
John P. Wojcik - South Barrington IL, US
James P. Baltz - Waterville OH, US
David M. Seitz - Riga MI, US
Roger T. Cedoz - Curtice OH, US

International Classification:

B05C 5/00

US Classification:

118300

Abstract:

A canister for a coating applicator system has a flexible barrier separating a coating-containing region in the canister from a region containing a force applicator for moving the barrier to dispense the coating. While the volumes of each region change upon movement of the barrier, surfaces defining the regions remain in that region.

US Patent:

20090202731, Aug 13, 2009

Filed:

Apr 10, 2006

Appl. No.:

11/911301

Inventors:

Ghaffar Kazkaz - Rolling Meadows IL, US
John P. Wojcik - South Barrington IL, US
James P. Baltz - Waterville OH, US
David M. Seitz - Riga MI, US
Roger T. Cedoz - Curtice OH, US
Lee A. Sheridan - Barrington IL, US

International Classification:

B05D 1/02
B05B 7/00

US Classification:

4274211, 118300

Abstract:

A spray applicator system is provided with a reservoir manifold assembly having a separate reservoir for each different coating to be applied. Reservoirs are filled from a coating supply system and isolated electrically from the supply system when coating is dispensed from a reservoir to the applicator. Multiple sets of reservoirs can be used, so that an empty reservoir in one set can be filled while coating is dispensed from a reservoir in the other set. The set of reservoirs in which a reservoir is being filled is isolated electrically from the applicator, and of the set of reservoirs in which a reservoir is dispensing coating to the applicator is isolated electrically from the supply system.