Filtering Screen
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United States of America Patent
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app pub date -
Oct 6, 2016
filing date -
Oct 6, 2016
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A filtering screen has a plate. The plate has a top surface, a bottom surface, and at least one screening area. The at least one screening area is defined in the plate and has multiple screening holes defined through the top surface and the bottom surface. Each screening hole has an upper segment and a lower segment connected and communicating with the upper segment. The upper segment of each screening hole has a unique diameter. The lower segment of each screening hole is conical and has a diameter gradually decreasing from a top end of the lower segment to a bottom end of the lower segment.
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