Liquid purification or separation – Filter – With residue removing means or agitation of liquid
Reexamination Certificate
2007-01-16
2007-01-16
Lithgow, Thomas M. (Department: 1724)
Liquid purification or separation
Filter
With residue removing means or agitation of liquid
C210S414000, C209S250000, C209S273000, C209S306000, C209S017000, C209S001000, C162S055000
Reexamination Certificate
active
10994234
ABSTRACT:
A strainer for fibrous suspensions, having a container, a filtering basket inside the container and a rotor inside the filtering basket coupled to motorization means suited to set it rotating. In the container there are a drain chamber of the rejected suspension, a delivery chamber of the filtered suspension, and a collector body arranged in the upper part of the container. The collector body has a lower collector and an upper collector, both with radial longitudinal profile in the shape of a truncated cone and connected to each other in correspondence with the long bases. The lower collector has its short base facing the filtering basket and the upper collector has its short base facing upwards.
REFERENCES:
patent: 4067800 (1978-01-01), Young
patent: 4202761 (1980-05-01), Holz
patent: 4222863 (1980-09-01), Young
patent: 4749474 (1988-06-01), Young
patent: 5172813 (1992-12-01), Ljokkoi
patent: 5899338 (1999-05-01), Fredrikkson et al.
patent: 2002/0069985 (2002-06-01), Rienecker
patent: 94/16141 (1994-07-01), None
Comer S.p.A.
Dykema Gossett PLLC
Lithgow Thomas M.
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