Apparatus for coating a substrate

Details Apparatus for coating a substrate Apparatus for coating a substrate

1975-06-19

1976-11-23

McIntosh, John P.

Coating apparatus

With vacuum or fluid pressure chamber

118411, B05C 502

Patent

active

039930190

ABSTRACT:
An improved coating apparatus of the kind wherein a coating hopper having a vertically inclined slide surface is provided, upon which one or more layers of a liquid coating composition(s) may be made to flow in a downwardly-inclined direction into a coating bead or bridge of coating solution which bridge spans a generally horizontal gap between an edge of the hopper and an upwardly moving substrate to be coated. In the apparatus of the invention, a coating composition(s) is made to flow over an upturned surface and toward the substrate, so that the coating composition(s) flows into the bridge of coating solution at an angle of lesser inclination to the horizontal than that of the slide surface. The apparatus of the invention improves upon coating apparatus of the prior art by providing, when coating, increased bead stability and minimizatin of the deleterious effects of particles that lodge at an edge of a coating apparatus.

REFERENCES:
patent: 2761419 (1956-09-01), Mercier et al.
patent: 2975754 (1961-03-01), Wright
patent: 3627564 (1971-12-01), Mercier
patent: 3749053 (1973-07-01), Timson
patent: 3916043 (1975-10-01), Fowble

Affiliated with

Also associated with

Rating

Apparatus for coating a substrate does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-226084