Spool drive for film cartridge in single-use camera

Details Spool drive for film cartridge in single-use camera Spool drive for film cartridge in single-use camera

1994-03-16

1995-11-28

Hayes, Monroe H.

354275, G03B 100

Patent

active

054712700

ABSTRACT:
A single-use camera comprises a film cartridge including a cartridge shell and a film spool rotatably supported inside the shell with a cylindrical drive hub end axially protruding from the shell, and a manually rotatable film advance thumbwheel with an axially depending drive spindle engaging the drive hub end to rotate the spool. The cylindrical drive hub end has a pair of adjoining semi-cylindrical wall portions, one of which protrudes farther from the shell than the other. The drive spindle has a single semi-cylindrical wall portion matingly shaped to engage the cylindrical drive hub end at its pair of adjoining semi-cylindrical wall portions.

REFERENCES:
patent: 4647170 (1987-03-01), Stoneham
patent: 5408288 (1995-04-01), Ogura et al.

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