Film clamp for flattening image frames in a scanning gate

Details Film clamp for flattening image frames in a scanning gate Film clamp for flattening image frames in a scanning gate

1993-12-14

1995-03-21

Gellner, Michael L.

Photocopying

Projection printing and copying cameras

Detailed holder for original

348 96, G03B 2762

Patent

active

054001170

ABSTRACT:
A film flattening apparatus and method of operation for flattening a filmstrip image frame against an aperture in a base operable by applying normal compressing force through longitudinally extending clamping elements to compress the longitudinal edges of said filmstrip image frame against said base surface, applying transversely directed tensioning force through the longitudinally extending clamping elements away from the image frame to press the longitudinal edges of said filmstrip image frame apart, and applying normal compressing force through laterally extending clamping elements to compress the lateral edges of said filmstrip image frame against the base surface, whereby the filmstrip image frame is flattened by pressing contact along with the longitudinal and transverse edges of the filmstrip image frame and tensioned flat by the laterally applied force as the clamping elements are advanced fully into their respective contact positions. The flattening apparatus is formed of longitudinally and laterally extending clamping members supported on a movable carrier apart from the base in a retracted position during filmstrip advance moved toward the base to a contact position pressing against the longitudinal and transverse edges of the filmstrip image frame. The longitudinally extending clamping elements are pivotally supported on the carrier and biased toward the base for vertical and lateral movement on contact with the filmstrip. The laterally extending clamping elements are biased toward the base for vertical movement on contact with the filmstrip.

REFERENCES:
patent: 2199305 (1940-04-01), Dewey
patent: 2251184 (1941-07-01), Bohannon
patent: 3288027 (1966-11-01), Ruzika
patent: 3488120 (1970-01-01), Nagel
patent: 3542471 (1970-11-01), Dubay
patent: 3779643 (1973-12-01), Nosco et al.
patent: 4181428 (1980-01-01), Proulx
patent: 4241993 (1980-12-01), Guillaume
patent: 4353645 (1982-10-01), Kogane et al.
patent: 4835555 (1989-05-01), Maxwell
patent: 4924258 (1990-05-01), Tsutsui
patent: 4965632 (1990-10-01), Jadrich et al.
patent: 5028956 (1991-07-01), VanScooter
patent: 5055874 (1991-10-01), Kralles et al.
patent: 5111241 (1992-05-01), Kralles
patent: 5258807 (1993-11-01), Reinke

Affiliated with

Also associated with

Rating

Film clamp for flattening image frames in a scanning gate 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 clamp for flattening image frames in a scanning gate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film clamp for flattening image frames in a scanning gate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1153103