Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1989-02-02
1990-08-07
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
354298, 355 75, G01N 2186, G01V 904
Patent
active
049470493
ABSTRACT:
A photographic printer is provided with a film strip receiving means including an elongated film strip receiving slot. A transport means is activated by a film strip detection means when the leading end of a film strip is inserted into the slot to move the film strip into the slot. The detection means also detects the presence of the trailing end of the film strip if the film strip is not totally contained by the slot. If a trailing end is not detected, a door is closed to light seal the entrance to the slot. If a trailing end is detected, the door is not closed to prevent damage to the film strip.
REFERENCES:
patent: 3554107 (1971-01-01), McCarthy et al.
patent: 3696981 (1972-10-01), Levy
patent: 4200383 (1980-04-01), Bendoni et al.
Beck George C.
Eastman Kodak Company
Nelms David C.
Smith James A.
LandOfFree
Film handling means for a photographic printer 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 handling means for a photographic printer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film handling means for a photographic printer will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-962171