Composite air-knife

Details Composite air-knife Composite air-knife

1975-07-29

1976-08-31

Kaplan, Morris

Coating apparatus

With heat exchange, drying, or non-coating gas or vapor...

To remove or spread applied coating by gas blast

15307, 15418, B05C 1106

Patent

active

039773590

ABSTRACT:
In a coating apparatus, doctor means for effecting a uniform coating of a molten metal includes an air-knife means having a sliding shutter disposed within the nozzle at each end of the slot thereof. Each shutter is configurated and operatively associated with a nozzle wall to form a chamber having an opening at the nozzle slot. Means feed a gaseous fluid through each said chamber at a relatively high pressure to therby effect a composite air-knife having higher pressures at the ends thereof.

REFERENCES:
patent: 3314163 (1967-04-01), Kohler
patent: 3499418 (1970-03-01), Mayhew
patent: 3526204 (1970-09-01), Schnedler et al.
patent: 3687103 (1972-08-01), La Camera et al.

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