Apparatus for removing foreign matter from flexible support

Details Apparatus for removing foreign matter from flexible support Apparatus for removing foreign matter from flexible support

1984-02-17

1986-03-25

Moore, Chris K.

Brushing, scrubbing, and general cleaning

Attachments

Moving surface scraper, wiper, or brush

15308, 118123, B08B 102

Patent

active

045773629

ABSTRACT:
An apparatus for removing foreign matter from a flexible support such as a photographic film or magnetic tape. After applying a solvent to the surface of the support from which the foreign matter is to be removed, the support is passed over at least two parallel adjacent plates which extend widthwise perpendicular to the direction of movement of the support, with the plates being located relative to the support at a position before the solvent evaporates. The edge surface of the downstream one of the two plates is provided with a cutting edge at the upstream side thereof. The cutting edge forms a gap with the surface sufficiently small that the foreign matter to be removed cannot enter the gap. Further, the gap is large enough to leave solvent film in a thickness of at least 0.2 microns after passing the two plates.

REFERENCES:
patent: 399544 (1889-03-01), Manahan
patent: 2243844 (1941-06-01), Gift
patent: 2529699 (1950-11-01), Lach
patent: 4331993 (1982-05-01), Pfost et al.
patent: 4455706 (1984-06-01), Volkmann et al.

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