US 6,565,271 B1Granted

Self-developing film assemblages

AssigneePolaroid Corporation

InventorJohn E. Meschter

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Abstract

Disclosed is a film assemblage of the self-developing type comprising a first and a second sheet in juxtaposed relationship to one another. Each of the sheets contains a plurality of exposure cut-outs at spaced apart intervals. Portions of the first and second rectangular sheets which separate individual exposure cut-outs contain a frangible line running in a direction perpendicular to the major axis of the rectangular sheet. The film assemblage further comprises a plurality of positive receiving sheets, a plurality of negative or photosensitive sheets, an elastic carrier sheet, a plurality of photographic processing fluid supply pods and a plurality of photographic processing fluid collection traps. The relationship between these elements in the film assemblage of the present invention is fully disclosed.

Claims6

Dependent claims

A self-developing film unit comprising:

a) a first rectangular sheet having a plurality of exposure cut-outs at spaced-apart intervals, portions of the first rectangular sheet which separate individual exposure cutouts containing a frangible line running in a direction substantially perpendicular to the major axis of the first rectangular sheet;
b) a second rectangular sheet having a plurality of exposure cut-outs at spaced-apart intervals, portions of the second rectangular sheet which separate individual exposure cutouts containing a frangible line running in a direction substantially perpendicular to the major axis of the second rectangular sheet;
c) a plurality of positive receiving sheets;
d) a plurality of negative or photosensitive sheets;
e) an elastic carrier sheet;
f) a plurality of photographic processing fluid supply pods;
and
g) a plurality of photographic processing fluid collection traps;
the components being assembled such that the first and second rectangular sheets are aligned with exposure cut-outs and frangible lines in-register thereby forming a series of exposure frames separable along frangible lines, each of the plurality of in register exposure cut-outs, or exposure frames, having a leading edge and a trailing edge defined with respect to the order in which the edges pass a set of spread rollers in a camera in which the film unit is loaded, the leading edge of each exposure frame containing a channel in communication with a photographic processing fluid supply pod positioned between the first and second rectangular sheets, and the trailing edge of each exposure frame containing a channel in communication with a photographic processing fluid collection trap positioned between the first and second rectangular sheets, each exposure frame being backed on one side by a positive receiving sheet, and on the other side by a negative or photosensitive sheet, the elastic carrier sheet being adhered to each negative or photosensitive sheet, and to inter-exposure frame portions of the rectangular sheet to which the negative or photosensitive sheet is attached, frangible lines falling between each point of adherence to a negative or photosensitive sheet, and adjacent points of adherence to inter-exposure frame portions of the rectangular sheets.

6 more elements

Dependencies are inferred from the claim text.

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Abstract

A self-developing film unit comprising:

a) a first rectangular sheet having a plurality of exposure cut-outs at spaced-apart intervals, portions of the first rectangular sheet which separate individual exposure cutouts containing a frangible line running in a direction substantially perpendicular to the major axis of the first rectangular sheet;
b) a second rectangular sheet having a plurality of exposure cut-outs at spaced-apart intervals, portions of the second rectangular sheet which separate individual exposure cutouts containing a frangible line running in a direction substantially perpendicular to the major axis of the second rectangular sheet;
c) a plurality of positive receiving sheets;
d) a plurality of negative or photosensitive sheets;
e) an elastic carrier sheet;
f) a plurality of photographic processing fluid supply pods;
and
g) a plurality of photographic processing fluid collection traps;
the components being assembled such that the first and second rectangular sheets are aligned with exposure cut-outs and frangible lines in-register thereby forming a series of exposure frames separable along frangible lines, each of the plurality of in register exposure cut-outs, or exposure frames, having a leading edge and a trailing edge defined with respect to the order in which the edges pass a set of spread rollers in a camera in which the film unit is loaded, the leading edge of each exposure frame containing a channel in communication with a photographic processing fluid supply pod positioned between the first and second rectangular sheets, and the trailing edge of each exposure frame containing a channel in communication with a photographic processing fluid collection trap positioned between the first and second rectangular sheets, each exposure frame being backed on one side by a positive receiving sheet, and on the other side by a negative or photosensitive sheet, the elastic carrier sheet being adhered to each negative or photosensitive sheet, and to inter-exposure frame portions of the rectangular sheet to which the negative or photosensitive sheet is attached, frangible lines falling between each point of adherence to a negative or photosensitive sheet, and adjacent points of adherence to inter-exposure frame portions of the rectangular sheets.

6 more elements