Guang G Yu

US Patent:

6623551, Sep 23, 2003

Filed:

Jan 7, 2002

Appl. No.:

10/040737

Inventors:

Joseph M. Klobucar - Detroit MI
James L. Pakkala - Livonia MI
Guang Yu - Northville MI
Gregory M. Still - Plymouth MI

Assignee:

Durr Industries, Inc. - Plymouth MI

International Classification:

B01D 4508

US Classification:

96356, 96358, 96360, 55443, 55465, 55DIG 46

Abstract:

A baffle system for separating entrained liquid from a gas stream including columns of U-shaped baffles extending into a liquid trough and including flashing at the top of the baffles on opposed sides, wherein the wet side flashing is longer than the dry side flashing, and a trough baffle directing the air stream upwardly reducing re-entrainment of liquid. The flange portions of the columns of baffles are spaced to provide for cleaning.

US Patent:

6716272, Apr 6, 2004

Filed:

Mar 7, 2002

Appl. No.:

10/093334

Inventors:

Joseph M. Klobucar - Detroit MI
Guang Yu - Novi MI
James L. Pakkala - Livonia MI
Hugh F. Hussey - Novi MI

Assignee:

Durr Industries, Inc. - Plymouth MI

International Classification:

B01D 4710

US Classification:

95216, 96275, 96323, 118326, 55DIG 46

Abstract:

A scrubber assembly for removing particulate paint from a flow of air through a paint application booth is disclosed. A sheet of water received from a water source flows over flood pan collecting paint particles suspended in the flow of air. A separation chamber receives air and particulate paint from the booth and water from the flood pan through first and second scrubbers. The first and second scrubbers extend downwardly from the flood pan. Each scrubber includes an inlet receiving air and particulate paint from the paint application booth and water from said flood pan. The first scrubber includes a first outlet discharging a first stream of air, particulate paint, and water received from the first inlet. The second scrubber includes a second outlet discharging a second stream of air, particulate paint and water received from the second inlet. The first and second streams intersect within the separation chamber.

US Patent:

7905723, Mar 15, 2011

Filed:

Feb 1, 2007

Appl. No.:

11/701254

Inventors:

Joseph M. Klobucar - Ann Arbor MI, US
James L. Pakkala - Livonia MI, US
Guang Yu - Novi MI, US

Assignee:

Durr Systems, Inc. - Plymouth MI

International Classification:

F27B 9/00

US Classification:

432147, 432148, 34270

Abstract:

An oven assembly for baking coatings applied to an object includes a housing with a header receiving pressurized air from a ventilator disposed outside the oven. A heater provides heat to the pressurized air received from the ventilator raising the temperature of the pressurized air to between about two and four times curing temperature in Fahrenheit degrees of the coatings applied to the object. The header extends from the heater into the housing. The header has nozzles disposed at spaced locations directing pressurized air at the temperature being between about two and four times the curing temperature in Fahrenheit degrees of the coating applied to the object toward predetermined locations on the object.

US Patent:

8065122, Nov 22, 2011

Filed:

Jun 26, 2008

Appl. No.:

12/147084

Inventors:

Guang Yu - Novi MI, US
Joseph M. Klobucar - Ann Arbor MI, US

Assignee:

Durr Systems, Inc. - Plymouth MI

International Classification:

G06G 7/48
G06G 7/56

US Classification:

703 5, 703 6

Abstract:

A method of designing or evaluating the design of a bake oven for curing paint on an article to achieve the cure criteria for predetermined areas of the article, including creating a three-dimensional model of the article and the bake oven, dividing the three-dimensional model into discreet elements, using a computer to set each discreet element to initial conditions and at an initial time, repeating this step to achieve substantial convergence, comparing the cure criteria with the calculated temperature as a function of time and finally modifying the computational model of the bake oven to achieve the cure criteria based upon a computer simulation.

US Patent:

8535054, Sep 17, 2013

Filed:

Jan 13, 2011

Appl. No.:

13/005600

Inventors:

Joseph M. Klobucar - Ann Arbor MI, US
James L. Pakkala - Livonia MI, US
Guang Yu - Novi MI, US

Assignee:

Durr Systems, Inc. - Plymouth MI

International Classification:

F27D 17/00

US Classification:

432 64, 432114, 432145, 34270

Abstract:

An oven assembly for baking coatings applied to an object includes a housing with a header receiving pressurized air from a ventilator disposed outside the oven. A heater provides heat to the pressurized air received from the ventilator raising the temperature of the pressurized air to between about two and four times curing temperature in Fahrenheit degrees of the coatings applied to the object. The header extends from the heater into the housing. The header has nozzles disposed at spaced locations directing pressurized air at the temperature being between about two and four times the curing temperature in Fahrenheit degrees of the coating applied to the object toward predetermined locations on the object.

US Patent:

20090017408, Jan 15, 2009

Filed:

Sep 25, 2008

Appl. No.:

12/237572

Inventors:

James L. Pakkala - Livonia MI, US
Joseph M. Klobucar - Ann Arbor MI, US
Guang Yu - Novi MI, US

Assignee:

Durr Systems, Inc. - Plymouth MI

International Classification:

F26B 3/04
F26B 3/30

US Classification:

432145, 432147, 432143, 432175, 34267

Abstract:

A radiant convection oven for baking a coating on an article which includes an oven enclosure receiving coating articles, a fan receiving fresh air and directing the fresh air to a burner or burners, a plurality of heat radiators each having an internal chamber receiving heated fresh air from the burner. The radiators are located within the oven opposite a coating article, radiating heat energy to the coated article, and a plurality of nozzles connected to the internal chamber of the radiators directing fresh heated onto the article, transferring convection heat energy to the coated article. In the disclosed embodiment, the radiators include radiating side and bottom walls having a relatively shallow depth, increasing the flow rate through the radiators, reducing the size and cost of the radiators and the fan.

US Patent:

62281542, May 8, 2001

Filed:

Dec 23, 1999

Appl. No.:

9/471562

Inventors:

James L. Pakkala - Livonia MI
Guang Yu - Northville MI
David J. Cole - Canton MI

Assignee:

Durr Industries, Inc. - Plymouth MI

International Classification:

B01D 4710

US Classification:

96323

Abstract:

A discrete pod gas scrubber system for removing contaminants from the air of a work area, such as a paint spray booth. Each scrubber pod includes an inlet section having opposed converging planar walls and side walls, an intermediate section having opposed diverging walls and side walls communicating with the inlet section through a reduced diameter venturi, and an outlet section having a bottom wall perpendicular to the longitudinal axis of the scrubber pod, a diverging top wall and an end wall. The end wall includes an orifice opening and orifice plates for adjusting the orifice opening and the combined lengths of the aligned scrubber pods are between fifty and ninety percent of the total length of the scrubber system, more preferably between sixty percent and eighty five percent of the total length. The scrubber system of this invention significantly reduces the noise generated in the work area normally located above the gas scrubber system.

US Patent:

62907425, Sep 18, 2001

Filed:

Dec 23, 1999

Appl. No.:

9/472327

Inventors:

James L. Pakkala - Livonia MI
Guang Yu - Northville MI
Gregory M. Still - Plymouth MI

Assignee:

Durr Industries, Inc. - Plymouth MI

International Classification:

B01D 4508

US Classification:

55443

Abstract:

A baffle system for removing liquid entrained in a gas stream which includes a plurality of generally coplanar columns of upright generally U-shaped baffle members each including a web portion and opposed flange portions on opposite sides of the web portion. The baffle members are conventionally arranged, such that the web portions of the first column of baffle members face the direction of flow of the gas and the second column opens toward the direction of flow with the web portions of each column overlapping. The width of the web portions of the baffle members is equal to at least three times the length of the flange portions and more preferably at least four times the width of the web portions. In one embodiment, the free ends of the flange portions include inwardly projecting lips or hook-shaped portions and the flange portions preferably do not overlap.