Photography – Fluid-treating apparatus – Having testing – calibration – or indicating
Patent
1997-01-21
1998-05-05
Rutledge, D.
Photography
Fluid-treating apparatus
Having testing, calibration, or indicating
396626, 73304R, G03D 302
Patent
active
057490180
ABSTRACT:
A method and apparatus for processing a photosensitive material. The apparatus includes at least one processing section and a replenishment system for delivering replenishment solution contained within a container to the processing section. The replenishment system including a single device for withdrawing replenishment solution from the container and for monitoring the level of the replenishment solution contained in the container. The container is made of a material that is electrically non-conductive. A pair of spaced electrically conductive members are provided within the container. One of the members has a passageway for allowing flow processing solution therethrough and one has a terminal end which extends below the other member within the container. An AC current is applied to the pair of spaced members and the AC current is monitored with a level sensing circuit. When the replenishment solution falls below the end of the shorter member, a low level indicating signal is produced by the level sensing circuit.
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Piccinino, Jr. Ralph L.
Rosenburgh John H.
Wess Raymond E.
Eastman Kodak Company
Novais David A.
Pincelli Frank
Rutledge D.
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