Liquid purification or separation – Structural installation – Closed circulating system
Patent
1994-04-25
1995-05-09
Dawson, Robert A.
Liquid purification or separation
Structural installation
Closed circulating system
119259, A01K 6304
Patent
active
054137071
ABSTRACT:
An aquarium prefilter or surface skimmer which utilizes an open collection chamber having a plurality of vents providing communication between the surface water in the aquarium and the interior of the collection chamber. The collection chamber is adjustable vertically to compensate for varying water levels and preferably is so adjusted as to submerge such vents approximately one-quarter of an inch below the water surface. This effectively creates a drain on the surface which will suck in surface dirt, particles, leaves, etc. into the collection chamber when the device is connected to a suction pump as described herein. The collection unit is frictionally engaged to permit such vertical adjustment with a vertical suction tube having a mesh-protected opening at the upper end thereof to trap any large particles of debris. The suction tube has a coupling at its other end adapted to engage with the collar of an intake tube from a conventional aquarium filter unit e.g. a "Second Nature Whisper" power filter. The coupling is constructed with a pair of flexible spring detents which engage with the collar on the intake tube to provide a positive lock therewith.
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Dawson Robert A.
Popovics Robert James
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