Master optical disk heat-drying apparatus

Details Master optical disk heat-drying apparatus Master optical disk heat-drying apparatus

1989-03-14

1990-02-06

Bennett, Henry A.

Drying and gas or vapor contact with solids

Apparatus

With apparatus using centrifugal force

34 90, 34184, 34236, F26B 1900

Patent

active

048979325

ABSTRACT:
An apparatus for drying optical disks heats a disk from the underside, and optionally blows clean air between the heater and the disk being dried in order to prevent contaminants from landing on the disk. Heat control is provided such that a surface temperature of the disk during drying is maintained uniform, preventing brittleness. The apparatus preheats the heater, placing the disk in a standby position during warm-up. The apparatus then moves the disk over the heater, and monitors the temperature of the disk, removing the disk back to the standby position when the disk reaches a predetermined temperature. In order to provide uniform heating, a radiant heat controlling plate having a suitably-shaped opening portion may be provided. Additionally, temperature distribution throughout the disk may be achieved as desired, in accordance with the heat control performed, and/or in accordance with the shape of the opening portion of the radiant heat controlling plate.

REFERENCES:
patent: 2256825 (1941-09-01), Christman
patent: 4724619 (1988-02-01), Poli et al.

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