Eastman-kodak Company

Robert B Call

Donna M Timmons

Jay E Mathewson

Richard R Horn

Gary P Wainwright

Peter J Kelch

Stephen N Lowery

James J Carey

Lloyd A Lobo

Jeffrey L Hall

A cartridge that supplies fresh photographic processing solution or chemistry to a photoprocessing machine and recovers silver from spent processing solution. The cartridge is designed to integrate a solution supply system and a silver recovery system to facilitate the collection of silver from spent processing solution, form a less-regulated spent solution and reduce chemical exposures to operators of photoprocessing systems.

Photofinishing processing system and a processing solution supply cartridge for the processing system

A method of providing photoprocessing services utilizes a packaging system in which photoprocessing solutions are distributed from a source of manufacture to a photofinishing site. The packaging system includes a rigid or semi-rigid outer container and at least one internal container. The internal container includes the processing solution, and can be made of a rigid or flexible material. The internal container may be separable from the outer container or may be in the form of an internal compartment that is integral with the outer container. As an option, the outer container can house a further container that is designed to collect waste or spent solution from the photoprocessing site. With the system of the present invention, a designated supplier entity can follow the packaging system through an entire usage cycle of the system.

Method of providing photoprocessing services

A high performance method for recovery of metal from aqueous solutions is carried out using an electrochemical cell having a cathode assembly that includes a nonporous support member, a primary cathode, and a nonconductive or conductive porous material covering the primary cathode. An anode is spaced apart from the cathode assembly. Fluid is caused to flow through the porous material to the primary cathode, through openings or fluid collection channels in the nonporous support member, and uniformly out of the cell. Uniform and efficient deposition of metal is accomplished over the entire cathode assembly because of modulation of fluid flow and increased mass transfer.

Method of metal recovery using electrochemical cell

A high performance electrochemical cell is useful for recovery of metal from aqueous solutions. The electrochemical cell has a cathode assembly that includes a nonporous support member, a primary cathode, and a nonconductive or conductive porous material covering the primary cathode. An anode is spaced apart from the cathode assembly. Fluid is caused to flow through the porous material to the primary cathode, through openings or fluid collection channels in the nonporous support member, and uniformly out of the cell. Uniform and efficient deposition of metal is accomplished over the entire primary cathode because of modulation of fluid flow and increased mass transfer.

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Rochester, NY, United States of America

Robert B Call