Process and apparatus for converging developing vapors in diazoc

Details Process and apparatus for converging developing vapors in diazoc Process and apparatus for converging developing vapors in diazoc

1979-06-22

1981-09-15

Hix, L. T.

Photocopying

Contact printing

Light boxes

354300, 34155, 355 27, 430150, G03D 700

Patent

active

042893941

ABSTRACT:
The invention relates to an improvement in diazocopy development machines. A development chamber is used in which ammonia vapors are generated. A converging system made up of converging walls which accelerate the hot ammonia vapors, without additional means, channels the vapors toward the copy support. Thus, a striking is made of the support with the vapors and the development speed can be significantly increased.

REFERENCES:
patent: 3440944 (1969-04-01), Endermann et al.
patent: 3534673 (1970-10-01), Muller
patent: 3589810 (1978-12-01), Umahashi et al.
patent: 4068249 (1978-01-01), Degenhardt et al.

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