Bottle top filter

Details Bottle top filter Bottle top filter

1985-11-19

1987-06-16

Sever, Frank

Liquid purification or separation

Filter

Vacuumized filtrate receiver

210469, 210474, 422101, B01D 3500

Patent

active

046735011

ABSTRACT:
A disposable vacuum assisted filter funnel for filtering fluids into bottles. The bottle top filter forms a vacuum dependent seal with the mouth of the bottle. When fluid is introduced into the bottle top filter, the evacuated bottle draws the fluid through the filter into the bottle. The bottle top filter lacks a vacuum plenum between the vacuum source and the bottle. The bottle top filter may be manufactured from one molded piece.

REFERENCES:
patent: 2465623 (1949-03-01), Zika
patent: 2874843 (1959-02-01), Townsend
patent: 3010583 (1961-11-01), Kenyon
patent: 3437211 (1969-04-01), Lindsey
patent: 3782175 (1974-01-01), Roman
patent: 4251366 (1981-02-01), Simon et al.
patent: 4301010 (1981-11-01), Eddleman et al.
patent: 4357240 (1982-11-01), Mehra et al.
"Bottle Top Filter", Falcon Plastics (.TM.), Cat. No. 7104; Date ukn.

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