Flow distributor for a liquid film discharging device
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United States of America Patent
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-
Jul 20, 1982
Grant Date -
N/A
app pub date -
Dec 9, 1980
filing date -
Dec 17, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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