Bi-directional clutchless film transport device

Details Bi-directional clutchless film transport device Bi-directional clutchless film transport device

1982-03-04

1983-12-20

Christian, Leonard D.

Advancing material of indeterminate length

By intermittent material-mover

With means to effect feed and retrograde movement

226181, B65H 1726, B65H 1722

Patent

active

044212631

ABSTRACT:
A bi-directional film transport device includes an upper and lower plate member having a separation gap between a first and second pair of drive rollers, the bytes of which are positioned adjacent the gap. A single drive motor is rigidly rotationally coupled to drive the first and second pair of drive rollers and the plate members function to eliminate the tendency of the film to buckle, which in turn maintains the film in the proper plane of focus. As a result of this simple arrangement, complex clutch mechanisms which are otherwise employed to maintain tension during bi-directional operation have been eliminated. Side walls coupled between the plates parallel to the path of film travel prevent skewing of the film driven by the short low inertia high speed drive rollers.

REFERENCES:
patent: 3191834 (1965-06-01), Nakauchi
patent: 3292444 (1966-12-01), Bentley
patent: 3415435 (1968-12-01), Bevis
patent: 3762619 (1973-10-01), Leavitt et al.
patent: 3968917 (1976-07-01), Lanahan
patent: 4046372 (1977-09-01), Ebner
patent: 4089254 (1978-05-01), Kindig

Affiliated with

Also associated with

Rating

Bi-directional clutchless film transport device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bi-directional clutchless film transport device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bi-directional clutchless film transport device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-103732