Developer residue waste eliminator for diazo machines

Details Developer residue waste eliminator for diazo machines Developer residue waste eliminator for diazo machines

1976-06-28

1978-10-24

Nix, L. T.

354300, 55 70, 96 49, 34 73, G03D 700

Patent

active

041224736

ABSTRACT:
The present invention provides a device for eliminating the residue waste of aqueous ammonia solution, comprising a first portion of ammonia gas and a second portion of steam, of a developer system in an ammonia type diazo machine. The device provides for separating the first and second portions, recirculating the first portion to the developer system, condensing the second portion to form water and conveying the water via an inlet duct to an evaporator tank. A heater is provided for heating the evaporator tank to vaporize the water therein and an outlet duct is provided for expelling the water vaporized in the tank to an exhaust system of the machine. The heater is controlled by a first thermostat for maintaining the temperature in the evaporator tank within a working range to vaporize the water, and a second thermostat is provided for sensing a temperature below the working range indicating a heater failure and, in response thereto, initiating stoppage of residue waste flow from the developer system to prevent overflow of water in the evaporator tank.

REFERENCES:
patent: 2761364 (1956-09-01), Cross
patent: 3147687 (1964-09-01), Halden
patent: 3836987 (1974-09-01), Gibbons et al.
patent: 3969741 (1976-07-01), Frank et al.
patent: 3982258 (1976-09-01), Czebiniak
patent: 4003069 (1977-01-01), Hilgers

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