Filtering device

Details Filtering device Filtering device

2007-12-04

2007-12-04

Upton, Christopher (Department: 1724)

Liquid purification or separation

With gas-liquid surface contact means

C210S503000, C261S094000, C261SDIG072, C428S131000, C428S402000

Reexamination Certificate

active

11306228

ABSTRACT:
A filtering device includes a hollow casing and a plurality of tubes. The casing includes an interior defined by a surrounding wall. The casing further includes a plurality of through-holes defined in the surrounding wall and in communication with the interior of the casing. Each tube extends through an associated one of the through-holes of the casing into the interior of the casing. In another embodiment, a filtering device includes a first hollow casing and a second hollow casing received in the first hollow casing. Each of the first hollow casing and the second hollow casing includes an interior delimited by a surrounding wall. A plurality of through-holes are defined in each of the surrounding walls of the first hollow casing and the second hollow casing.

REFERENCES:
patent: 3429654 (1969-02-01), Friedrichsen et al.
patent: 3543937 (1970-12-01), Choun
patent: 3758087 (1973-09-01), Hoon, Jr.
patent: 3823924 (1974-07-01), Hoon, Jr.
patent: 4113810 (1978-09-01), Ikawa
patent: 4200532 (1980-04-01), Iwatani et al.
patent: 4208284 (1980-06-01), Pretorius et al.
patent: 4581299 (1986-04-01), Jager
patent: 5223129 (1993-06-01), Hsieh
patent: 5690819 (1997-11-01), Chianh
patent: 55-145589 (1980-11-01), None
Translation of Japanese patent 55-145589, Nov. 1980.

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