Glass manufacturing – Processes – With coating
Patent
1994-02-18
1996-12-17
Czaja, Donald E.
Glass manufacturing
Processes
With coating
65 604, 65 605, 65157, 65168, 118720, 427255, 4272551, C03C 1700, C23C 1604
Patent
active
055849032
ABSTRACT:
Apparatus and method for coating hot glass bottles are improved by providing a controlled non-turbulent air supply directed downward across the coating material stream. The apparatus has a relocated blower for delivering process fluid (e.g. air) into an end of a plenum upper chamber, passing the air first through an permeable attenuator, then into a lower plenum chamber and finally through a diffuser plate to provide a uniform stream of process air directed downward across the coating-material stream into the finish region of the bottle. In the method, process air is blown to a plenum, through an angled attenuator plate with small holes to distribute the process air evenly and to avoid standing waves and regions of high or low air velocity. Several attenuator plates can be juxtaposed to permit removal of particulates by movement of the plates relative to each other. An iris or throttle valve after the blower can be used as an additional method of controlling the force and velocity of process air. A clean out is provided in the plenum through which the attenuator plates can be removed or cleaned. The method is improved by passing the air through an attenuator plate mounted at an angle to the flow of process fluid to provide a controlled non-turbulent air supply.
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Barkalow Raymond W.
Guthrie Roger T.
Czaja Donald E.
DeBenedictis Nicholas J.
Elf Atochem North America Inc.
Griffin Steven P.
Marcus Stanley A.
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