Filter device for drinking container

Details Filter device for drinking container Filter device for drinking container

1997-07-21

1999-07-06

Reifsnyder, David A.

Liquid purification or separation

Filter

With flow controller for material being treated

210429, 210432, 210446, 210473, 220666, 220703, 220714, 220907, 222167, 22218906, 22218909, B01D 2900

Patent

active

059193654

ABSTRACT:
A drinking container includes a flexible, hollow body having a neck. There is closure member removably connected to the neck. There is a spout on the closure member. A filter device is operatively connected to the spout within the body. The filter device includes a filter, a passageway bypassing the filter and a movable valve member in the passageway which opens the passageway when the container is in upright position when the spout is on top. The valve member blocks the passageway when the container is inverted from the upright position or pressurized.

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patent: 5609759 (1997-03-01), Nohren, Jr. et al.
patent: 5635079 (1997-06-01), Becking, II

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