Ribbed funnel

Details Ribbed funnel Ribbed funnel

1998-07-09

2000-07-04

Walker, W. L.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

210477, 210481, 2104973, 210499, 210455, B01D 29085

Patent

active

060833920

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.

REFERENCES:
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patent: 4159954 (1979-07-01), Gangemi
patent: 4229306 (1980-10-01), Hein et al.
patent: 4642190 (1987-02-01), Zimmerman
patent: 4765896 (1988-08-01), Hartley et al.
patent: 5290444 (1994-03-01), Campbell
patent: 5503740 (1996-04-01), Callaghan et al.

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