Pressure filter for aquariology

Liquid purification or separation – Structural installation – Closed circulating system

Reexamination Certificate

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Details

C210S413000, C210S415000

Reexamination Certificate

active

07399407

ABSTRACT:
Pressure filter for aquariology for retaining impurities of the water intended for ponds, aquaria and the like, of the type comprising a glass-like container (12) closed by a cover (14), a liquid path (15) extended in the container between an inlet opening (16) and an outlet opening (17), a filtering body (18) placed along the path and having an exposed surface (19) whereon the impurities are retained, and at least a brushing element (31) mounted in the container in a guided way with to-and-from movement along the exposed surface (19) for removing the impurities, characterized in that the brushing element (31) is mobile against the exposed surface (19) for maintaining a pressing contact between the brushing element (31) and the exposed surface (19).

REFERENCES:
patent: 1548160 (1925-08-01), Newman
patent: 4883587 (1989-11-01), LeVeen et al.
patent: 394 124 (1965-06-01), None
patent: 394124 (1965-11-01), None
patent: 43 07 472 (1994-11-01), None
patent: 4307472 (1994-11-01), None
patent: 196 30 652 (1998-02-01), None
patent: 19630652 (1998-02-01), None
patent: 2 234 913 (1975-01-01), None
patent: 2234913 (1975-01-01), None
patent: 2 007 104 (1979-05-01), None

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