Michael Charles Chen

US Patent:

6902126, Jun 7, 2005

Filed:

Nov 4, 2002

Appl. No.:

10/287107

Inventors:

Michael M. Chen - Naperville IL, US
Jianrong Chen - Naperville IL, US

Assignee:

ALSTOM Technology Ltd - Baden

International Classification:

B02C023/12

US Classification:

241 791, 241 80

Abstract:

A hybrid turbine classifier for a coal pulverizer includes a cone disposed within the separator body of the pulverizer. The cone extends downwardly from a base to a frustum which forms an opening for depositing coal particles on the grinding table of the pulverizer. The outer surface of the cone and the separator body define an outer passage for coal/air flow, containing a mixture of smaller and larger coal particles, from the grinding table. A circular, first classifier cage disposed proximate to the base of the cone defines a circumferential passage between the outer passage and the cavity of the cone. The first classifier cage includes static, circumferentially-spaced vanes which direct the coal/air flow in a spiraling, circular flow path within the cavity. The flow path defines a first flow direction. A circular, second classifier cage is coaxially disposed within the first classifier cage.

US Patent:

7028847, Apr 18, 2006

Filed:

May 29, 2003

Appl. No.:

10/449407

Inventors:

Michael M. Chen - Naperville IL, US
Jianrong Chen - Naperville IL, US

Assignee:

ALSTOM Technology Ltd - Baden

International Classification:

B07B 9/00
B07D 4/00

US Classification:

209713, 209132, 209133, 209142, 209710

Abstract:

A two-stage dynamic classifier (′) for classifying a pulverized feed material () entrained in an air flow () includes a vertically extending housing having a lower feed material inlet (18), an upper feed material outlet (), a processing section (′) disposed between the feed material inlet and the feed material outlet, and a lower tailings discharge (). A classifier conditioner () is disposed in a lower portion of the processing section and a turbine classifier () is disposed in an upper portion of the processing section.

US Patent:

D553734, Oct 23, 2007

Filed:

Sep 22, 2006

Appl. No.:

29/266527

Inventors:

Michael H. Chen - Fullerton CA, US
Gregory E. Painter - Buena Park CA, US

Assignee:

Access Business Group International LLC - Ada MI

International Classification:

2802

US Classification:

D24102, D1106

US Patent:

D555783, Nov 20, 2007

Filed:

Sep 22, 2006

Appl. No.:

29/266526

Inventors:

Michael H. Chen - Fullerton CA, US
Gregory E. Painter - Buena Park CA, US

Assignee:

Access Business Group International LLC - Ada MI

International Classification:

2802

US Classification:

D24102, D1106

US Patent:

D556319, Nov 27, 2007

Filed:

Sep 15, 2006

Appl. No.:

29/266155

Inventors:

Michael H. Chen - Fullerton CA, US
Gregory E. Painter - Buena Park CA, US

Assignee:

Access Business Group International LLC - Ada MI

International Classification:

2802

US Classification:

D24102, D1106

US Patent:

7325761, Feb 5, 2008

Filed:

May 18, 2004

Appl. No.:

10/847958

Inventors:

Michael Ming-Ming Chen - Naperville IL, US
Jianrong Chen - Naperville IL, US
David Michael Podmokly - Downers Grove IL, US

Assignee:

ALSTOM Technology Ltd

International Classification:

B02C 13/00

US Classification:

241194, 241195

Abstract:

A hammer is provided for a material size-reducing machine of the type including a rotor on which the hammer is individually pivotally mounted. The hammer includes a mounting end having a throughbore for receiving a pivot pin therethrough in connection with the pivot mounting of the hammer on the rotor, an extending portion with the center of mass CGM located therein. The extending portion has a non-linear body portion and a linear body portion with the linear body portion being inclined in a direction opposite to the rotation direction at an angle between 5 to 45 degrees as measured relative to a line RFL extending through the center of the pivot pin and the center of mass CGM of the hammer.

US Patent:

D562492, Feb 19, 2008

Filed:

Aug 16, 2006

Appl. No.:

29/264701

Inventors:

Michael Chen - Whittier CA, US

Assignee:

Ritelight, Inc. - Hacienda Heights CA

International Classification:

2603

US Classification:

D26 85, D26 89

US Patent:

7665681, Feb 23, 2010

Filed:

Nov 14, 2007

Appl. No.:

11/939621

Inventors:

Michael M. Chen - Naperville IL, US

Assignee:

ALSTOM Technology Ltd - Baden

International Classification:

B02C 23/32

US Classification:

241 52, 241 57, 241 791, 241 80, 241119, 241129

Abstract:

A roller mill for pulverizing material and separating the pulverized material has a mill for crushing the material and a classifier disposed on the mill for separating the crushed material. The mill includes a grinding mechanism that has a plurality of grinding rolls and a grinding ring that coact to pulverize material within a mill housing, which defines a grinding chamber. The classifier is a centrifugal-type classifier having a motor-driven rotor disposed within a classifier housing, which define a classifying chamber. The rotor has a plurality of blades that extend outwardly from the rotor. As the rotor rotates within the classifying chamber, the blades separate fine sized particles from oversized particles by passing the finer sized particles through the blades, and contacting and propelling the oversized particles against the classifier housing. The oversize particles fall downward through an outer annular passage defined by a baffle and the mill housing back to the grinding mechanism. The baffle is disposed along the inner periphery of the mill housing spaced at a distance from the mill housing to provide an inner passage and an outer annular passage.