Liquid purification or separation – Structural installation – Closed circulating system
Patent
1988-10-12
1990-01-16
Fisher, Richard V.
Liquid purification or separation
Structural installation
Closed circulating system
2104162, 210282, 210449, 119 5, A01K 6304
Patent
active
048941514
ABSTRACT:
An undergravel filter of an aquarium tank served by a power head to suck water from a chamber located beneath the undergravel filter to circulate this water into the tank. A riser tube connects the filter with the power head and contains a carbon cartridge, fixed to the power head. The carbon cartridge is perforated and has a substantially conical configuration. The cartridge is filled with carbon which provides chemical filtration of the water before it is returned into the aquarium tank.
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Fisher Richard V.
Lee Coreen Y.
Willinger Brothers, Inc.
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