Method and apparatus for coating interior surfaces of objects with abrasive materials
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United States of America Patent
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Aug 20, 1991
Issued Date -
N/A
app pub date -
Feb 7, 1990
filing date -
Jun 15, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus and method for coating interior surfaces of objects employs an electrostatic fluidized bed unit in which the fluidization chamber is relatively shallow, and is circumscribed by a marginal portion that conforms closely to the dimensions and configuration of the cavity of the object. The apparatus employs, as a feature of its recovery and recirculation system, a fluidized bed for agitating and facilitating feeding of the particulate material, thus making the system especially well suited for depositing coatings of abrasive materials, such as vitreous frit.
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Cited Art Landscape
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