Disposable vacuum filtration apparatus capable of detecting...

Details Disposable vacuum filtration apparatus capable of detecting... Disposable vacuum filtration apparatus capable of detecting...

2005-06-30

2009-06-16

Cecil, Terry K (Department: 1797)

Liquid purification or separation

Filter

Vacuumized filtrate receiver

C210S474000, C210S489000, C422S105000, C422S105000

Reexamination Certificate

active

07546925

ABSTRACT:
A vacuum filtration apparatus (900) for detecting microorganisms and particulates in liquid samples. The apparatus includes a base (901), an absorbent pad (991), a filter (990), a funnel (930), and a lid (960). The funnel is releasably attached to the base, and may contain an integral flexible seal for releasably sealing the filter to the base. The outer wall of the lid may be segmented to make it flexible, this flexibility allows it to be releasably attached to the funnel or the base. The apparatus is designed so that any funnel will fit any base, and any lid will fit any base or any funnel when all parts are manufactured to normal tolerances. The apparatus may be configured to keep the filter wrinkle free in both the dry and wet states.

REFERENCES:
patent: 3010583 (1961-11-01), Kenyon
patent: 5234585 (1993-08-01), Zuk, Jr.
patent: 5308483 (1994-05-01), Sklar et al.
patent: 6358730 (2002-03-01), Kane
patent: 6443314 (2002-09-01), Shiraiwa et al.

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