Coating apparatus – Immersion or work-confined pool type – Work-confined pool
Patent
1995-02-22
1997-12-30
Alexander, Lyle A.
Coating apparatus
Immersion or work-confined pool type
Work-confined pool
118300, B05D 104
Patent
active
057025274
ABSTRACT:
A coating device has a first half and a second half located adjacent the first half to form a slot between the first and second halves. A porous material, having a thickness greater than the height of the slot, is disposed in the slot to compress uniformly along its width. The porous material has a porosity and a height selected in combination with each other to create a predetermined pressure drop through the slot and to maintain the pressure drop to create the desired flow rate along the slot width. The size of the pores in the porous material can be less than 25 .mu.m and the exit pressure drop through the slot can be at least one thousand times greater than could be obtained without the porous material.
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Danielson Daniel R.
Erickson Luther E.
Scheel Lyle N.
Seaver Albert E.
Alexander Lyle A.
Griswold Gary L.
Kirn Walter N.
Levine Charles D.
Minnesota Mining and Manufacturing Company
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