Liquid purification or separation – Flow – fluid pressure or material level – responsive – Check valve
Patent
1991-08-09
1993-08-31
Hruskoci, Peter A.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Check valve
210137, 210169, 2104162, 119232, 15 17, A01K 6304
Patent
active
052405966
ABSTRACT:
An aquarium cleaning apparatus is described that preferably incorporates a number of features including: (1) a swivel head connected to the siphon hose which rotates as the apparatus is maneuvered around an aquarium; (2) extension tubes to lengthen the cleaning tube assembly so that the apparatus can be used, for example, in aquariums having a greater height; (3) a self-starting feature that has a novel two-piece check ball assembly which permits "self-starting" of the siphon action; (4) an angled spout on the swivel head which connects to the siphon hose to facilitate self-starting; (5) an angled corner on the cleaning tube assembly which permits the apparatus to access and effectively clean the gravel adjacent to the walls and corners of the aquarium; (6) an aesthetically attractive contoured gripping tube; (7) a screen which prevents aquarium gravel from jamming the check valve assembly; and (8) a scraper assembly and scrubber assembly which may be attached to the apparatus for removing deposits to accumulate upon the interior surface of an aquarium.
REFERENCES:
patent: D282016 (1985-12-01), Chestnut
patent: 2899063 (1959-08-01), Ellis, Jr.
patent: 2956507 (1960-10-01), Hutchinson
patent: 4571766 (1986-02-01), Goldman et al.
patent: 4610784 (1986-09-01), Reyniers
Chesco, Inc.
Hruskoci Peter A.
Popovics Robert James
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