Liquid purification or separation – With means to add treating material – Directly applied to separator
Reexamination Certificate
2006-04-04
2006-04-04
Lithgow, Thomas M. (Department: 1724)
Liquid purification or separation
With means to add treating material
Directly applied to separator
C210S167150, C210S416200, C210S184000, C210S748080, C210S198100, C210S205000, C210S181000, C119S263000, C119S264000
Reexamination Certificate
active
07022227
ABSTRACT:
A multifunctional filtering device for an aquarium mainly includes a filter box for being suspended at an aquarium. The filter box includes a pump motor for producing mixture of water and air and a vortex flow generator disposed at the center of the inner side of the bottom thereof and in communication with a water outlet disposed at the pump motor. A bubble collector is disposed at the top of the vortex flow generator. The filter box may be suspended inside or outside the aquarium. The filter box includes a water input pipe unit and a water output pipe unit which may be differently configured in accordance with the suspension position of the filter box. The water output pipe unit may be further disposed with a heating rod or ultraviolet sterilization lamp for heating or sterilizing breeding water in the aquarium.
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Lithgow Thomas M.
Vigil Thomas R.
Welsh & Katz Ltd.
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