Gregory Steven Marczak

US Patent:

7384570, Jun 10, 2008

Filed:

Dec 5, 2005

Appl. No.:

11/294016

Inventors:

Gregory S. Marczak - Fruitport MI, US
Rick A. Minner - Muskegon MI, US

Assignee:

Lorin Industries, Inc. - Muskegon MI

International Classification:

B44C 1/22
C03C 15/00
C03C 25/68
C23F 1/00
C25F 3/00

US Classification:

216102, 216103

Abstract:

A process for selectively etching a surface of an anodized aluminum article. A preferred process includes: providing an aluminum sheet or web including first and second sides having anodized finishes; etching the first side to improve the adhesion capabilities of that side but not etching the second side so that the second side retains its anodized finish. The anodized aluminum may be colored before etching, thus the second side retains its color after etching. In a more preferred embodiment, sodium hydroxide or phosphoric acid is used to etch the anodized aluminum. Optionally, the etching of the second side is prevented by administering gas or liquid over the second side, masking the second side with a protective film, or shielding the second side with a shield. Further, the gas or liquid administered over the second side may be controlled to increase or decrease the rate of etching on the first side.

US Patent:

20020040888, Apr 11, 2002

Filed:

Jul 5, 2001

Appl. No.:

09/899591

Inventors:

Gregory Marczak - Fruitport MI, US
Rick Minner - Muskegon MI, US

International Classification:

C23F001/02
C23F001/00

US Classification:

216/103000, 156/345000, 216/090000, 216/091000

Abstract:

A process for selectively etching a surface of an anodized aluminum article. A preferred process includes: providing an aluminum sheet or web including first and second sides having anodized finishes; etching the first side to improve the adhesion capabilities of that side but not etching the second side so that the second side retains its anodized finish. The anodized aluminum may be colored before etching, thus the second side retains its color after etching. In a more preferred embodiment, sodium hydroxide or phosphoric acid is used to etch the anodized aluminum. Optionally, the etching of the second side is prevented by administering gas or liquid over the second side, masking the second side with a protective film, or shielding the second side with a shield. Further, the gas or liquid administered over the second side may be controlled to increase or decrease the rate of etching on the first side.

US Patent:

20020096434, Jul 25, 2002

Filed:

Jan 19, 2001

Appl. No.:

09/766356

Inventors:

Gregory Marczak - Fruitport MI, US
Rick Minner - Muskegon MI, US

International Classification:

C25D005/00
C25D005/44
C25D011/16
C25D011/04
C25D007/06

US Classification:

205/105000, 205/150000, 205/096000, 205/324000, 205/213000, 205/139000, 205/102000, 204/206000

Abstract:

A process and apparatus for conducting an electrically independent current through an anodized web to electro-deposit a coloring agent on the web. A preferred process includes the step of providing a continuous web of anodized aluminum; transferring with a charging plate a coloring current to the web with a charging plate in a first treatment cell over an area of the web sufficient to allow the current to pass through an anodic layer of the aluminum and flow through the web; and electro-depositing coloring agents on the web with the coloring current in a second treatment cell. Optionally, the web may be serially passed through additional treatment cells to apply a variety of different coloring currents to the web whereby the web may be colored with multiple coloring agents and consequently exhibit multiple colors and/or refractive properties.