Glass etching

Details Glass etching Glass etching

2008-05-13

2008-05-13

Nguyen, Dung Van (Department: 3723)

Abrading

Abrading process

Utilizing fluent abradant

C451S039000

Reexamination Certificate

active

11457288

ABSTRACT:
An apparatus for etching a workpiece in which a first abrasive particulate material, for example aluminium oxide, and a second particulate material, for example glass dust, are entrained together in a stream of gas. The apparatus recycles exhaust particulate material by introducing it into said gas stream, the exhaust particulate material including particulate material removed from the workpiece by the action of the gas stream with entrained particulate material. The apparatus is particularly suited for etching toughened glass.

REFERENCES:
patent: 4375740 (1983-03-01), Brown
patent: 4563840 (1986-01-01), Urakami
patent: 5562531 (1996-10-01), Yamaharu
patent: 5591064 (1997-01-01), Spears, Jr.
patent: 5637030 (1997-06-01), Chopra et al.
patent: 2006/0264153 (2006-11-01), Jaubertie
patent: 20 2005 007 320 (2003-07-01), None
patent: 2 383 766 (2002-01-01), None
International Search Report , mailed Dec. 7, 2006, from corresponding Application No. PCT/EP2006/006449.

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