Coating apparatus – Immersion or work-confined pool type – Work-confined pool
Patent
1980-12-09
1982-07-20
Kendall, Ralph S.
Coating apparatus
Immersion or work-confined pool type
Work-confined pool
118413, B05C 318
Patent
active
043400116
ABSTRACT:
In a device for producing from an outlet slot of constant width along its length, a flowing film of liquid with a velocity substantially constant over the length of the slot, a row of passageways, arranged in parallel with each other, connect a supply duct with the outlet slot. In order to reduce the demand for high precision and thus the associated cost of manufacture, the passageways are made of an elongate configuration and with a constant bore diameter along a length which is several times greater than the bore diameter. The restrictions preferably consist of tubes of varying length along the length of the outlet slot and a formula for determining the length of the tubes is given. The use of the device in a fountain applicator for coating webs is also described.
REFERENCES:
patent: 3285225 (1966-11-01), Recor
patent: 3418970 (1968-12-01), Phelps et al.
patent: 3502494 (1970-03-01), Ishiwata et al.
patent: 3521602 (1970-07-01), Coghill
patent: 4023526 (1977-05-01), Ashmus
Pages 1-11, and 50-96 of the Book "Non-Newtonian Fluids", W. L. Wilkinson, Pergamon Press, Ltd., London, 1960.
Akesson Rolf A. L.
Wahren Douglas
Aktiebolaget Karlstads Mekaniska Werkstad
Kendall Ralph S.
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