Aquarium filter

Details Aquarium filter Aquarium filter

1994-12-13

1996-03-26

Hruskoci, Peter A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Material level or thickness responsive

210 95, 210109, 210151, 210169, 210202, 210203, 2104162, C02F 302, A01K 6304

Patent

active

055017908

ABSTRACT:
A filtration unit for an aquarium tank comprises a biological filter chamber which is cyclically exposed to air and water without the use of conventional syphon means. Alongside the chamber is a U-tube arrangement one branch of which communicates at its upper end with the upper region of the chamber. Compressed air is continuously admitted to the chamber, e.g. by bubbling up beneath its open bottom end. When the water in chamber drops to the level of the bend of the U-tube air in the chamber expells remaining water from the U-tube and is able to evacuate chamber, enabling it to refill with water.

REFERENCES:
patent: 3151069 (1964-09-01), Halpert
patent: 3294239 (1966-12-01), Dayes
patent: 3485373 (1969-12-01), Powers
patent: 3771544 (1973-11-01), Horvath
patent: 4220530 (1980-09-01), Gabriele
patent: 5011600 (1991-04-01), Mowka, Jr. et al.
patent: 5160622 (1992-11-01), Gunderson et al.
patent: 5176824 (1993-01-01), Willinger et al.
patent: 5336401 (1994-09-01), Tu

Affiliated with

Also associated with

Rating

Aquarium filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aquarium filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aquarium filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-913656