Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1990-06-13
1991-11-12
Stodola, Daniel P.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
354275, G03B 1726, G03B 100
Patent
active
050641344
ABSTRACT:
A film cassette comprises a film spool supported inside a lighttight cassette shell for rotation to thrust a filmstrip coiled about the spool automatically to the exterior of the shell, and a film exposure status indicator supported for movement with respect to the shell from an unexposed position for providing a visible indication that the filmstrip is unexposed to an exposed position for providing a visible indication that the filmstrip is exposed. According to the invention, the shell and the status indicator include mutually engagable pin and hole for locking the indicator in its unexposed position to prevent the indicator from being manually moved to its exposed position but which can be disengaged by a suitable device in a camera, for example, to unlock the indicator to permit the indicator to be mechanically moved to the exposed position.
REFERENCES:
patent: 1017313 (1977-09-01), Ito et al.
patent: 1469485 (1923-10-01), Rivetta
patent: 1583707 (1926-05-01), Tessier
patent: 2051206 (1936-08-01), Fairbanks
patent: 2161341 (1939-06-01), Fairbanks
patent: 2188377 (1940-01-01), Small
patent: 3037719 (1962-06-01), Bemmann
patent: 3066880 (1962-12-01), Bauer
patent: 3141628 (1964-07-01), Evans et al.
patent: 3542306 (1970-11-01), Bundschuh
patent: 3691921 (1972-09-01), Isbell
patent: 3805277 (1974-04-01), Domnick
patent: 3831881 (1974-08-01), Tucker
patent: 3894700 (1975-07-01), Ito et al.
patent: 4111137 (1978-09-01), Luscher
patent: 4221479 (1980-09-01), Harvey
patent: 4310233 (1982-01-01), Okuyana et al.
patent: 4338015 (1982-07-01), Holmes
patent: 4401379 (1983-08-01), Tamamura et al.
patent: 4802633 (1989-02-01), Berry
patent: 4875638 (1989-10-01), Harvey
patent: 4887110 (1989-12-01), Harvey
patent: 4894673 (1990-01-01), Beach
patent: 4897437 (1991-01-01), Pagano et al.
patent: 4947197 (1990-08-01), Smart et al.
patent: 4965600 (1990-10-01), Smart et al.
patent: 4978985 (1990-12-01), Smart et al.
Miller Stephen H.
Pagano Daniel M.
Darling John P.
Eastman Kodak Company
Fields Roger A.
Stodola Daniel P.
LandOfFree
Film cassette with film exposure status indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Film cassette with film exposure status indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film cassette with film exposure status indicator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1008489