Method and apparatus for continuous liquefaction of gelled photo

Details Method and apparatus for continuous liquefaction of gelled photo Method and apparatus for continuous liquefaction of gelled photo

1990-11-14

1993-03-09

Chambers, A. Michael

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

137341, 137565, 165120, F16K 4900

Patent

active

051919109

ABSTRACT:
A method and apparatus for continuously liquefying a gelled photographic material for coating on a substrate is disclosed. The material is advanced throughout the liquefaction apparatus and on to the substrate coating system as a substantially undisrupted mass. The technique is particularly useful for liquefying small amounts of material at a time, because system hold-up volume and waste is minimized.

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patent: 3779518 (1973-12-01), Koepke et al.
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patent: 3847616 (1974-11-01), Kaneko et al.
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patent: 4673782 (1987-06-01), Koepke et al.
patent: 4844766 (1989-07-01), Held
Derwent Abstract D0009A/15-Appts. for Melting Photographic Emulsion Oct. 1977.
Derwent Abstract 67181 C/38-Photographic Emulsion Melter and Spreader Jan. 1980.
Derwent Abstract 12399X/07-Melting Gelated Gelatin Emulsion Jan., 1976.

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