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Compact aquarium filter

  • US 5,002,660 A
  • Filed: 06/07/1988
  • Issued: 03/26/1991
  • Est. Priority Date: 06/07/1988
  • Status: Expired due to Term
First Claim
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1. A filter for treating aquarium water, comprising a filter box having a front wall with an overflow lip and an overflow window, a rear wall, a first side wall, and a second side wall;

  • a filter cartridge extending from the first side wall to the second side wall to divide the filter box into an intake water reservoir and a discharge reservoir;

    an inlet tube for discharging aquarium water into the intake water reservoir of the filter box;

    an overflow ramp extending from the intake water reservoir, over the filter cartridge and forward to the overflow window so that untreated water flows over the ramp when the filter cartridge becomes clogged to indicate that the filter has become clogged and the ramp further defining a passage for the inlet tube.

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