Portable water purification device

Details Portable water purification device Portable water purification device

2007-11-19

2009-08-18

Lithgow, Thomas M (Department: 1797)

Liquid purification or separation

With repair or assembling means

C210S238000, C210S244000, C210S266000, C210S282000, C210S321840, C210S347000

Reexamination Certificate

active

07575678

ABSTRACT:
A portable water purification device includes a base, a fixed sleeve, a tube, a filtering unit, and a movable sleeve. The base includes a channel for providing filtered liquid. The fixed sleeve is fixed on the base and includes a first peripheral wall and a first axial hole. The tube on where the filtering unit is mounted is secured on the base and held in the first axial hole to define a penetrated hole communicating with the channel. The movable sleeve is mounted on an external surface of the fixed sleeve, and slid between a first position away from the base and a second position adjacent to the base. The movable sleeve includes a second peripheral wall and a second axial hole whereby the first axial hole communicates with the second axial hole to define a containing room when the movable sleeve is located on the first position.

REFERENCES:
patent: 1120229 (1914-12-01), Nieman
patent: 1483498 (1924-02-01), Zolnerevich
patent: 3823824 (1974-07-01), Close
patent: 4529511 (1985-07-01), Breeden et al.
patent: 6129841 (2000-10-01), Dann

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