Tandem pump/filter for aquarium

Details Tandem pump/filter for aquarium Tandem pump/filter for aquarium

1993-09-27

1994-06-07

Hruskoci, Peter A.

Liquid purification or separation

Structural installation

Closed circulating system

210220, 2104162, 210418, 210420, 4151212, 119261, A01K 6304

Patent

active

053187016

ABSTRACT:
A tandem pump equipped with a pair of pump units that are assembled together each having a water inlet and a water outlet. Each water outlet duct is associated with a control chamber which is equipped with a volume control disc which can be operated with click sound. Each water outlet duct is provided an air intake tube with which flexible pipe can be engaged so that air or different kinds of gas can be introduced into water of a fish globe along with the projected water. The pump umits of the tandem pump are in communication with each other so that water can be controllably dispensed via a single water outlet or both water outlets at variable speed or volume. Different kinds of accessories for fish raising can be selectively mounted to both or either of the pump units so as to make the tandem pump to be more effectively employed.

REFERENCES:
patent: 5006238 (1991-04-01), Tominaga
patent: 5131821 (1992-07-01), Marioni et al.

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