Dynamic optical information storage or retrieval – Optical storage medium structure – Disk hub
Reexamination Certificate
2005-11-02
2009-02-10
Blouin, Mark (Department: 2627)
Dynamic optical information storage or retrieval
Optical storage medium structure
Disk hub
Reexamination Certificate
active
07490339
ABSTRACT:
A cleaning device for the main shaft CD carrying tray of a CD player includes a sheet body and an attachment layer. The sheet body made of a preset material is to be placed on the tray of a CD player and conveyed into the CD player, having a center-positioning hole to be fitted on the center projecting portion of the CD carrying tray of the CD player. The surface of the attachment layer has proper viscosity or suction property, and the attachment layer has its underside fixed on the circumferential portion of the positioning hole of the sheet body, having its surface range covering at least the circumferential portion of the CD carrying tray, which supports the CD. Impurities attached on the circumference of the CD carrying tray can be adhered and cleared away by the attachment layer of the cleaning device.
REFERENCES:
patent: 4545047 (1985-10-01), Rickert
patent: 6058088 (2000-05-01), Cheng
patent: 6157605 (2000-12-01), Mori
patent: 6826145 (2004-11-01), Oishi et al.
patent: 2002/0172124 (2002-11-01), Weng
patent: 2007/0036057 (2007-02-01), Lee
Bacon & Thomas PLLC
Blouin Mark
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