Apparatus and method for uniformly coating an irregular web

Details Apparatus and method for uniformly coating an irregular web Apparatus and method for uniformly coating an irregular web

1984-08-03

1986-07-22

Kimlin, Edward

Coating apparatus

Solid member or material acting on coating after application

Running length work

118248, 118415, 156500, 156538, 100265, B05C 108, B05C 1104, B05C 318, B29B 100

Patent

active

046012567

ABSTRACT:
An apparatus and method for applying a smooth uniform coating to a web (W) having variations in thickness and density and surface irregularities is disclosed. The invention includes a vertical floating pressure table (B) which supports the traveling web (W) against a transfer roll (20) and a scrape blade (46). Coating material (C) metered by a doctor blade (34) is applied to the transfer roll (20) at (40) and then applied to the web in a uniform layer (78). The pressure table (B) is supported against the web by a counter-balancing linkage arrangement (D) which maintains a constant uniform pressure on the table (B) and web (W) regardless of the vertical movements of a table platform (60) in response to web variations an irregularities. A smooth uniform coating (80) is provided.

REFERENCES:
patent: 2614522 (1952-10-01), Snyder
patent: 2842092 (1958-07-01), Pomper
patent: 3580771 (1971-05-01), Maffitt
patent: 4253896 (1981-03-01), Appleyard et al.

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