Xin Wang

6485171, Nov 26, 2002

Dec 13, 1999

09/459665

Xin Xin Wang - Naperville IL
Thaddeus A. Niemiro - Lisle IL
Joseph Vucko - Lemont IL
James K. Henzl - Worth IL

Goss Graphic Systems, Inc - Westmont IL

B01F 1500

3661531, 73290 R, 340618

A sensor for detecting the level of circulating fluid in a tank comprises a paddle blade disposed at a particular height and oriented generally radially from a rotating shaft in the tank. A sensing device, such as a strain gauge, is attached to the paddle blade to detect when the paddle blade is in at least one of a normal and a displaced position, thereby indicating that fluid is absent or present at a particular level. Additional sensors may be used in the same tank to provide fluid level feedback at more than one height.

6659006, Dec 9, 2003

Aug 24, 2001

09/939355

Kenneth R. Brennan - Westmont IL
Theodore Costopolous - Lisle IL
Frederick J. Whiting - Burr Ridge IL
Thaddeus A. Niemiro - Lisle IL
Xin Xin Wang - Naperville IL

Goss Graphic Systems Inc. - Westmont IL

B41F 1356

101225, 101485, 226 3, 226 20, 226 29, 226 38, 226 45, 250548

A tension control device for a printing press having an adjustment roller, with a web of the press passing from a supply roll of the web to the adjustment roller. Means are provided for measuring the tension on opposed sides of the web passing downstream from the adjustment roller, and means are provided responsive to the measuring means for automatically approximately equalizing the tension of the web by adjustment of the adjustment roller on one end only of the adjustment roller.

6698353, Mar 2, 2004

Nov 20, 2001

09/989310

Xin Xin Wang - Naperville IL, 60563
Thomas W. Orzechowski - Orland Park IL, 60462
Joseph Vucko - Lemont IL, 60439

B41F 3100

1013491, 1013501, 347 89

A control system for regulating the composition of an emulsion ink made from an oil-based ink and a water-based fountain solution using a mixing and dispersing apparatus includes a liquid level sensor, means responsive to the liquid level sensor for maintaining a proper liquid level in the mixing and dispersing apparatus, and means for producing an emulsion ink with a water content value which is within a predetermined range from a desired water content value. The producing means includes a feedforward controller and a feedback controller for regulating water-based fountain solution input rate to the mixing and dispersing apparatus.

58750282, Feb 23, 1999

Sep 12, 1997

8/928253

Richard D. Lasken - Naperville IL
Xin Xin Wang - Woodridge IL
Robert Nemeth - Darien IL

Goss Graphic Systems, Inc. - Westmont IL

G01N 2101
B41F 2700

356244

A control system (60) for a printing press having a printed copy, a device (68 and 70) for manually using the copy to control operation of the press based on information on the copy, and device (80 and 82) for automatically reading the copy while excluding any control by target information on the copy, and controlling operation of the press based upon information on the copy.

58161511, Oct 6, 1998

Aug 14, 1997

8/911214

Xin Xin Wang - Woodridge IL
Robert Nemeth - Darien IL

Goss Graphic Systems, Inc. - Westmont IL

B41F 1312
B41F 3316

101171

A device for alignment of images for a control system of a printing press having a device for creating targets, a device for aligning a camera, a device for finding actual dot positions on at least one of the targets, a device for calculating the desired dot positions, a device for generating transfer functions, and a device for aligning the images.

58052801, Sep 8, 1998

Sep 28, 1995

8/536234

Richard D. Lasken - Naperville IL
Xin Xin Wang - Woodridge IL
Robert Nemeth - Darien IL

Goss Graphic Systems, Inc. - Westmont IL

G01N 2101

356244

A control system (60) for a printing press having a printed copy, a device (68 and 70) for manually using the copy to control operation of the press based on information on the copy, and device (80 and 82) for automatically reading the copy while excluding any control by target information on the copy, and controlling operation of the press based upon information on the copy.

59037121, May 11, 1999

Oct 5, 1995

8/539649

Xin Xin Wang - Woodridge IL
Robert Nemeth - Darien IL

Goss Graphic Systems, Inc. - Westmont IL

G06K15/00

395109

An ink separation device for a printing press ink feed control having a device for printing a color chart having randomly distributed color patches, and recording the cyan, magenta, yellow and black ink dot sizes (CMYK) for each color patch, a device for measuring the red, green, blue and infrared reflection value (RGBI) from each color patch, and recording the RGBI value for each of the color patches, a device for defining a transfer function which maps a four-dimensional RGBI vector into a four-dimensional CMYK vector, a device for forming RGBI measurements over a reference copy, and transferring each of the RGBI measurements into the corresponding CMYK ink dot size value, a device for forming RGBI measurements over a production copy, and transferring each of the RGBI measurements into the corresponding CMYK ink dot Size value, a device for forming the dot size ratio between the production copy and the reference copy to form the ink volume ratio between the reference and production copies and a device for adjusting and ink feed rate of the press.

58419551, Nov 24, 1998

Aug 16, 1995

8/515550

Xin xin Wang - Woodridge IL

Goss Graphic Systems, Inc. - Westmont IL

G06K 1500
B41F 3300

395109

A control system (10) for a four-color printing press (11) having a device (21) for detecting the energy reflected from a paper surface in both the visible region and the infrared region of the electromagnetic spectrum, a device (23) for converting the output of the detecting device (21) to a set of variables which represent the amount of ink presented on the paper for any of the cyan, magenta, yellow, and black inks, and a device (25) responsive to the converting device (23) for adjusting the four-color printing press (11) to maintain the color consistency with or without an additional color control target.