Apparatus for ammonia feed in copying equipment

Details Apparatus for ammonia feed in copying equipment Apparatus for ammonia feed in copying equipment

1977-10-28

1979-09-25

Myhre, Charles J.

Heat exchange

Heating and cooling

Heating and cooling of the same material

62 95, 55269, 23294R, A23C 302, F25D 1706, B01D 5100, B01D 700

Patent

active

041687418

ABSTRACT:
This invention relates to an improvement in an apparatus for ammonia feed in copying equipment with a cold trap, for freezing out ammonia and water from air extracted from the immediate vicinity of a developing chamber, in particular from pre-chambers, together with a rectifying column for releasing ammonia from the frozen-out ammonia-water mixture and recycling the gaseous ammonia into the developing chamber, the improvement comprising heat exchanger means,

REFERENCES:
patent: 2281168 (1942-04-01), Paget
patent: 3096255 (1963-07-01), Redenbaugh
patent: 3492831 (1970-02-01), Maurer et al.
patent: 4002198 (1977-01-01), Wagner et al.

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