Doctor holder for a coating device

Details Doctor holder for a coating device Doctor holder for a coating device

1991-06-20

1993-11-23

Jones, W. Gary

Coating apparatus

Solid member or material acting on coating after application

Running length work

118261, 118413, 1525653, B05C 1104

Patent

active

052640353

ABSTRACT:
A doctor holder for a surface coating device or a web coating device has a guide body with a guide path channel through it. A leaf spring like doctor strip is advanced along the length of the channel and across the width of the web being coated. The doctor strip has a row of cutouts in it for enabling it to be advanced through the guide body. One of various forms of guide elements advance the doctor strip. The guide elements may be projections from an endless chain, or may be teeth of a sprocket wheel, or may be individual separate guide elements like balls and the guide elements extend into the cutouts and then into a guide groove in the guide body. The doctor strip is wound onto a reel after leaving the guide body. The guide element balls, or the like, are installed at the beginning of the guide path and are removed e.g. by an air blast, at the end of that path.

REFERENCES:
patent: 2466734 (1949-04-01), Piazze
patent: 3085275 (1963-04-01), Allison
patent: 3781107 (1973-12-01), Ruhland
patent: 4165965 (1979-08-01), Bernardelli et al.
patent: 4877122 (1989-10-01), Morin
patent: 4961406 (1989-09-01), Goodrow et al.
patent: 5007132 (1991-04-01), Reid
patent: 5066364 (1991-11-01), Goodrow et al.
patent: 5138740 (1992-08-01), Goodrow et al.
Kneiser, "Cleaning Blade Belt", Xerox Disclosure Bulletin, vol. 1, Nos. 9/10, Sep./Oct. 1976, p. 71.

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