Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1990-07-31
1992-04-21
Jillions, John M.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
354275, G03B 1726
Patent
active
051060302
ABSTRACT:
A film cassette comprises a film spool supported inside a lighttight cassette shell for rotation to thrust a filmstrip coiled about the spool to the exterior of the shell whether the filmstrip is unexposed or is only partly exposed, and a film exposure status indicator supported for movement relative to the shell from an unexposed position to respective partly exposed and fully exposed positions for providing visible indications that the filmstrip is only partly exposed or is substantially exposed. According to the invention, the shell includes respective indicia indicating that the filmstrip is only partly exposed and is substantially exposed and respective windows located proximate the indicia, and the status indicator is configured in relation to the windows to be visible at the window proximate the indicia indicating that the filmstrip is only partly exposed when the indicator is in its partly exposed position and to be visible at the window proximate the indicia indicating that the filmstrip is substantially exposed when the indicator is in its fully exposed position.
REFERENCES:
patent: 2282044 (1942-05-01), Fairbanks
patent: 2924158 (1960-02-01), Kopp et al.
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patent: 3768894 (1973-10-01), Cook
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patent: 4894673 (1990-01-01), Beach
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patent: 4978985 (1990-12-01), Smart et al.
patent: 4987437 (1991-01-01), Pagano et al.
patent: 5048770 (1991-09-01), Baxter et al.
Jensen Thomas D.
Miller Stephen H.
Pagano Daniel M.
Eastman Kodak Company
Fields Roger A.
Jillions John M.
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