Film extraction system

Details Film extraction system Film extraction system

1992-03-20

1993-06-08

Watts, Douglas D.

Solid material comminution or disintegration

Processes

Miscellaneous

2411012, 241242, 242 55, 242 58, B02C 2300

Patent

active

052171728

ABSTRACT:
A vacuum system is provided for extracting film, such as microfilm, from reusable film cassettes. Microfilm which is wound on reels that are housed within the cassette casings can be rapidly withdrawn for shredding or for other use or disposal. One or more cassettes is positioned on a support for the cassette cases such that the axis of the reel within the cassette is vertical. A reel support projects upwardly from the case support so that the reel is lifted very slightly within the cassette case and does not rest upon the case. The accessible end of the microfilm on the outside of the reel is led to a vacuum source which applies a vacuum to the film. The reel is freely rotatable atop the reel support within the cassette so that the vacuum is able to draw the entire length of film off of the reel and out of the case through the film access opening. The microfilm is then normally shredded using conventional means.

REFERENCES:
patent: 1426687 (1922-08-01), Vardell
patent: 4028779 (1977-06-01), Shah
patent: 4243186 (1981-01-01), Peter et al.
patent: 4485981 (1984-12-01), Krywiczamin et al.
patent: 4775905 (1988-10-01), Kosugi et al.

Affiliated with

Also associated with

Rating

Film extraction system 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 extraction system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Film extraction system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1928771