Apparatus for silver recovery
AssigneeEastman Kodak Company
InventorGerhard Ueffinger
Life of this patent
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Abstract
The apparatus allows at least two film processor fixing solution tanks for black and white films with silver-based coating to be connected to a silver recovery unit. To that end, an intermediate storage tank is connected between the fixing solution tanks and the silver recovery unit. The intermediate storage tank is divided by an impervious internal partition into two chambers of equal size. The pipes connect the overflows of the fixing solution tanks to the inlets of the first chamber. Another pipe connects the outlet to the silver recovery unit. The return pipes connect the outlets of the second chamber to the inlets of the fixing solution tanks. A pipe connects the silver recovery unit to the inlet of the second chamber.
Claims10
Apparatus for connecting at least two film processor fixing solution tanks for films with a silver-based coating to a silver recovery unit, the fixing solution tanks each having an overflow and an inlet, characterized in that there is an intermediate storage tank connected between the fixing solution tanks and the silver recovery unit, in that the intermediate storage tank has an internal impervious vertical partition such that the intermediate storage tank is divided into a first and a second chamber of equal size, in that pipes connect the overflows of the fixing solution tanks with inlets in the first chamber, in that a pipe connects an outlet with the silver recovery unit, in that return pipes connect outlets of the second chamber with the inlets of the fixing solution tanks, and in that a pipe connects the silver recovery unit with an inlet in the second chamber of the intermediate storage tank.
Dependencies are inferred from the claim text.