G - Physics – 03 – C
Patent
G - Physics
03
C
G03C 3/00 (2006.01) G03B 17/34 (2006.01) G03B 42/04 (2006.01)
Patent
CA 2061350
FN: 46759CAN4A ABSTRACT An opening and closing mechanism 18 for photographic film cartridges 12 of the type having a film-receiving tray 20 with outwardly extending front and side lips 30 and a flexible cover 22 for the tray resealably engaged with the lips. The opening and closing mechanism 18 includes a cartridge-receiving base 16 with front and side lips 68 for supporting the front and side lips 30 of the tray 20. A carriage 90 is mounted for movement with respect to the base 16. An elongated roller 80 including cartridge cover-engaging fingers 88 is rotatably and movably mounted to the carriage 90. Springs 110 bias the roller toward engagement with the lips 68 of the base 16. A carriage drive assembly 92 includes a roller drive linkage 124, a track drive linkage 122, a motor 126 and a shuttle linkage 128. A rack 120 is mounted adjacent to the base 16 for engagement by the track drive linkage 122. During the cartridge opening stroke, the shuttle linkage 128 couples the motor 126 to the roller drive linkage 124 causing the roller 80 to rotate in a first direction and peel the cover 22 from the tray 20 and wind the cover onto the roller. During the cartridge closing stroke, the shuttle linkage 128 couples the motor 126 to the track drive linkage 122 to drive the carriage 90 with respect to the base 16 and rotate the roller 80 in a second direction to unwind and reseal the cover 22 onto the tray 20.
Joyce Terrence H.
Lemberger Richard R.
Schubert Paul C.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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