Scraper blade assembly
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United States of America Patent
Stats
-
Feb 2, 1999
Grant Date -
N/A
app pub date -
Apr 16, 1997
filing date -
Apr 17, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A scraper blade assembly utilizes an over-center spring to bias the scraper blade assembly both into engagement and out of engagement with a conveyor, such as a moving belt, on a device for separating solids from liquids. The over-center spring extends between a fixed attachment point on the device and a pivoting attachment point on a handle secured to the scraper blade assembly. The invention is particularly applicable to belt filter presses and gravity belt sludge thickeners. An over-center spring may be secured to both ends of the scraper blade assembly to minimize torsional deformation of the scraper blade by the material being separated from the moving belt.
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