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
PCT/US1993/005543
Publication Number
1994/000274
Application Date
June 10, 1993
Publication Date
January 6, 1994
Inventor
Thomas Fred C Iii
Hales Ronald F
Kieger George T
Candia Anthony M
Carter Jeff G
Bero James
Johnson Paul R
Agent
KURTZ Richard E
Assignee
Minnesota Mining And Manufacturing Company
IPC
B24C 03/22
B24C 03/02
B24C 01/00
B08B 07/00
B08B 15/02
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