Cooling device for overhead type slide projectors

Details Cooling device for overhead type slide projectors Cooling device for overhead type slide projectors

1983-07-19

1986-01-07

Haroian, Harry N.

Optics: image projectors

Temperature control

Blower

G03B 2116

Patent

active

045630674

ABSTRACT:
The disclosed cooling device, which is for overhead projectors adapted to project pictures of transparencies carried by a filing sheet without removing them from the filing sheet, comprises a blowing fan and an air-blowing nozzle adapted to discharge at least a part of the air from the blowing fan toward a space between a transparency in position for projection and bottom wall of the filing sheet, so as to cool the transparency and the filing sheet.

REFERENCES:
patent: 2837965 (1958-06-01), Goldsmith
patent: 3338132 (1967-08-01), Ruhle et al.
patent: 3632198 (1972-01-01), Puffer
patent: 3748033 (1973-07-01), Harvey

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