Photography – Fluid-treating apparatus – Having fluid filter
Patent
1997-06-04
2000-10-03
Popovics, Robert J.
Photography
Fluid-treating apparatus
Having fluid filter
396626, 396631, 210 85, 210 97, 210121, 210122, 210167, 210177, 210179, 210127, 210248, 210255, 210196, 210197, 210387, 210400, G03D 304
Patent
active
061263362
ABSTRACT:
An etching device for preparing flexible blocks which can be used for printing in flexography, typography or dry offset generally includes an etching tank containing a bath (22) and brushes (3), a stirring and heating device, and an overfill system (20) for discharging the solution from the etching tank through an outlet duct (21) to a separation device. The separation device includes a reception vat (14) having an upper part which is equipped with a device (10) for separating the water and the polymer, and at least one filtering membrane (7).
REFERENCES:
patent: 4370406 (1983-01-01), Jones
patent: 4752283 (1988-06-01), Copeland et al.
patent: 4796042 (1989-01-01), Mappin et al.
patent: 5124736 (1992-06-01), Yamamoto et al.
patent: 5474877 (1995-12-01), Suzuki
Cohen Gary M.
Photomeca/Egg
Popovics Robert J.
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