Ribbed funnel
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United States of America Patent
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-
Jul 4, 2000
Grant Date -
N/A
app pub date -
Jul 9, 1998
filing date -
Jul 9, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A funnel having at least one channel or groove formed by projected ribs in the sidewalls of the funnel. The projections space the sides of a filter membrane placed inside the funnel, thereby preventing the sides of the filter insert from adhering to the sidewalls of the funnel and allowing the fluid to flow through the sides of the filter insert and into the grooves or channels that conduct the fluid to the discharge orifice of the funnel. The projected ribs are preferably a plurality of raised ribs arranged at approximately 45 degree intervals about the funnel interior surface.
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