Method and apparatus for RF drying of coated articles
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United States of America Patent
Stats
-
Mar 26, 1985
Grant Date -
N/A
app pub date -
Nov 1, 1982
filing date -
Nov 1, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for R.F. drying of coated articles, such as gummed envelope flaps wherein the wet gummed flaps are moved through a curvilinear array of electrodes comprising a plate and a grid. The envelopes are carried between two belts around a drum having the plate and grid disposed adjacent to the periphery of the drum. The R.F. current travels diagonally between offset electrodes mounted on the plate and grid. The plate and grid are mounted in a housing which includes an air circulating system to remove heat and moisture from the housing. A screen forms a portion of one wall of the housing through which heat and moisture are exhausted from the housing. The drum is provided with fan blades to remove heat and moisture from within the confines of the drum.
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