Integral film unit with intermediate sheet forming a fluid reser

Details Integral film unit with intermediate sheet forming a fluid reser Integral film unit with intermediate sheet forming a fluid reser

1975-04-28

1977-08-16

Klein, David

Gas separation: apparatus

Electric field separation apparatus

Plural diverse electric fields

354304, G03C 148, G03D 902

Patent

active

040423956

ABSTRACT:
A photographic film unit with lateral and transverse edges having a pair of sheets connected in superposition with a photosensitive layer located between the sheets. A container carrying a quantity of fluent processing composition is arranged to provide for the discharge of the composition to between the sheets. The improvement comprises an integral intermediate sheet disposed between the pair of sheets and coupled to both of them at the lateral marginal portions thereof and separating such lateral marginal portions of the sheets by a predetermined amount. A portion of the intermediate sheet extends from between the pair of sheets at one end thereof and is secured transversely to one of the sheets at that end and is folded away from that sheet over itself within the compass of that sheet to define a compartment for fluent processing composition. The intermediate sheet has a centrally disposed exposure aperture and lateral edges which are in register with the lateral edges of the other sheets. The outer portions of the lateral edges of the intermediate sheet have a greater thickness than does the boundary of the aperture. The differing thicknesses of the intermediate sheet may be formed by machining a portion of the sheet which is originally of the thickness of the lateral edges, or by the utilization of separate spacer rails at the lateral edges.

REFERENCES:
patent: 2500422 (1950-03-01), Land
patent: 3689269 (1972-09-01), Schieven
patent: 3764332 (1973-10-01), Harvey
patent: 3775127 (1973-11-01), Nerwin

Affiliated with

Also associated with

Rating

Integral film unit with intermediate sheet forming a fluid reser does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integral film unit with intermediate sheet forming a fluid reser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integral film unit with intermediate sheet forming a fluid reser will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-358909