发明名称 |
AQUARIUM POWER HEAD WITH INTEGRAL MUFFLER |
摘要 |
A water pump assembly for an aquarium aeration system includes a housing surrounding an electric pump. Within the housing, a water conduit passes an impeller of the pump for the generation of a stream of moving water. An air-breather conduit conducts air from a location above the housing to an air-induction port in a sidewall of the water conduit wherein the moving water produces a venturi action for drawing in air and entraining the air as a series of bubbles in the stream of water. The process of mixing air with the water produces sound. A muffler disposed on top of the housing is connected serial with the air-breather conduit for attenuating the sound to permit a viewing of the aquarium without the distraction of the sound. A valve may be located on an air inlet port above the muffler for adjusting a rate of flow of the air. The muffler incorporates a serpentine corridor for conduction of the air, the corridor comprising a set of baffles or a set of arcuate passages of sufficiently small cross-sectional dimensions for attenuating the sound. The muffler is constructed in different embodiments, each of which may be opened manually for cleaning.
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申请公布号 |
US5137433(A) |
申请公布日期 |
1992.08.11 |
申请号 |
US19900531917 |
申请日期 |
1990.05.29 |
申请人 |
WILLINGER BROS., INC. |
发明人 |
WILLINGER, ALLAN H.;ELLIS, ROBERT |
分类号 |
A01K63/04;F01N7/00;F04D13/06;F04D15/00;F04D29/60;F04D29/66;F04D29/70 |
主分类号 |
A01K63/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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