A DISC FILTER APPARATUS
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United States of America Patent
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Issued Date -
May 5, 2016
app pub date -
May 27, 2014
filing date -
May 28, 2013
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Abstract
The disc filter apparatus comprises a drum that is rotatable around a shaft having a centre axis. The drum comprises filter discs positioned at an axial distance from each other. Each filter disc comprises a rim structure supported on the shaft and truncated, sector shaped filter plates mounted circumferentially in a radial plane to form an essentially continuous and planar disc surface. Each filter plate is attached with a fastening arrangement to the rim structure from a lower edge portion of the filter plate through at least three fastening points. The fastening arrangement between the filter plate and the rim structure comprises at each fastening point in the rim structure an adjustable sleeve construction. Prior art solutions require a radially planar fastening surface in the rim structure in order to have all the filter plates in one filter disc in the same radial plane. This is not necessary in the invention due to the use of an adjustable sleeve construction.
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