Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1991-03-18
1992-04-07
Stodola, Daniel P.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
354275, G03B 100
Patent
active
051020629
ABSTRACT:
In a film cassette, a spool is supported for rotation in an unwinding direction inside a cassette shell, a convoluted film roll whose outermost convolution is a film leader is coiled in the unwinding direction about the spool, and a film stripper is located substantially adjacent a passageway to the exterior of the shell to be received between a leading end of the film leader and a next-inward convolution of the film roll responsive to rotation of the spool in the unwinding direction to divert the leading end into the passageway. According to the invention, the stripper is positioned to lie against the next-inward convolution of the film roll to generally ensure the stripper will be received between the leading end of the film leader and the next-inward convolution when the spool is rotated in the unwinding direction.
REFERENCES:
patent: 2484248 (1949-10-01), Roehrl
patent: 4395107 (1983-07-01), Luhrig et al.
patent: 4445768 (1984-05-01), Gold
patent: 4616914 (1986-10-01), Buelens et al.
patent: 4883235 (1989-11-01), Niedespial, Jr.
patent: 4883236 (1989-11-01), Niedespial, Jr. et al.
patent: 4938429 (1990-07-01), Robertson et al.
Darling John P.
Eastman Kodak Company
Fields Roger A.
Stodola Daniel P.
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