Screen apparatus

Details Screen apparatus Screen apparatus

2006-04-18

2006-04-18

Lithgow, Thomas M. (Department: 1724)

Liquid purification or separation

Filter

With residue removing means or agitation of liquid

C210S409000, C210S162000, C210S797000, C210S209000, C210S220000

Reexamination Certificate

active

07028849

ABSTRACT:
Screen apparatus comprising a screen (10) which allows fluid to pass through it whilst providing a barrier to non-fluid matter in the fluid. A jet outlet (22) is arranged to direct a jet of fluid across that side of the screen (10) on which such matter would otherwise tend to collect when the apparatus is in use.

REFERENCES:
patent: 3357567 (1967-12-01), Wake
patent: 3620371 (1971-11-01), Valdespino
patent: 3739912 (1973-06-01), Miller, Jr.
patent: 3982499 (1976-09-01), Frankl
patent: 4412920 (1983-11-01), Bolton et al.
patent: 4468325 (1984-08-01), Yock et al.
patent: 5462673 (1995-10-01), Piers
patent: 6270684 (2001-08-01), Schloss
patent: 6354442 (2002-03-01), Obst
patent: 2235393 (1991-03-01), None
patent: 2297769 (1996-08-01), None
patent: 54-009065 (1979-01-01), None

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