Vacuum head for film

Photocopying – Contact printing – Machine

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

355132, G03B 2710, G03B 2702

Patent

active

041053311

ABSTRACT:
An apparatus and method to position a moving continuous strip master and a moving continuous strip duplicate for copying film images from the master to the duplicate. A vacuum is applied to a housing, the walls of which are partially formed by surfaces of longitudinally extending adjacent rollers. The master and duplicate are inserted through adjacent roller pairs and both sides exposed to a vacuum within the housing. The master and duplicate are removed from the housing with confronting surfaces in contact through a third adjacent roller pair. As a result of the vacuum created between the confronting strip surfaces and atmospheric pressure on opposite strip surfaces the relative position of the master to the duplicate is maintained until exposure to a light source is complete.

REFERENCES:
patent: 3468606 (1969-09-01), Wolf et al.
patent: 3595561 (1971-07-01), Leblant
patent: 3644040 (1972-02-01), Beispel
patent: 3661457 (1972-05-01), Frech

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Vacuum head for film does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vacuum head for film, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum head for film will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-916085

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.