0647170-A1 cites 3 patents.

A method and apparatus for removal of particulate waste materials or debris (10) from the floptical medium (1) after laser etching. A low temperature gas containing ice crystals (4) is applied at a predetermined angle while the floptical medium (1) is being rotated to improve the cleaning effect. The temperature of the disk (1) is maintained above freezing to maintain the cleaning effect.

Title
A method of and apparatus for removing debris from the floptical medium.
Application Number
EP19930925178 19930610
Publication Number
0647170 (A1)
Application Date
June 10, 1993
Publication Date
April 12, 1995
Inventor
Thomas Fred C Iii
US
Hales Ronald F
US
Kieger George T
US
Candia Anthony M
US
Carter Jeff G
US
Bero James
US
Johnson Paul R
US
Assignee
Minnesota Mining & Mfg
US
IPC
B24C 01/00
G11B 13/00
G11B 05/84
B24C 03/00
B24C 01/00
B08B 15/00
B08B 07/00
G11B 13/04
G11B 05/84
B24C 03/22
B24C 03/02
B24C 01/00
B08B 15/02
B08B 07/00
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