Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1989-03-10
1990-10-09
Brown, Brian W.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 711, G03B 1726
Patent
active
049624016
ABSTRACT:
This invention relates to a photographic film cartridge including a cartridge case having a longitudinal axis and opposite end walls, a spool extending substantially coaxially with respect to the cartridge case and carried at the opposite end portions by the opposite end walls of the cartridge case for rotation about a longitudinal axis of the spool, the cartridge case including a flexible wall portion having an axially extending substantially straight edge portion, the cartridge case further including a rigid edge portion for cooperation with the straight edge portion, the flexible wall portion being deflectable between a closed position wherein the straight edge portion is engaged with the rigid edge portion to provide a substantially light-tight seal and an open position wherein the straight edge position is apart from the rigid edge portion to provide an axially extending film outlet slit opening between the edge portions. The photographic film cartridge is not required to be provided with light shielding materials and can be made compacter than conventional cartridges.
REFERENCES:
patent: 4221479 (1980-09-01), Harvey
patent: 4335948 (1982-06-01), Cocco
patent: 4407579 (1983-10-01), Huff
Brown Brian W.
Fuji Photo Film Co. , Ltd.
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