发明名称 |
Aquarium heater and cooler |
摘要 |
A combination aquarium heater and cooler apparatus is provided which utilizes a feedback circuit to automatically maintain the fluid in an ecosystem at an operator set desired temperature. The feedback system scheme takes advantage of a thermo-electric heat pump component in combination with a high gain amplifier in order to achieve the desired result of maintaining the ecosystem at a temperature which is nearly constant regardless of other undesirable spurious heat inputs or losses to the ecosystem.
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申请公布号 |
US5299424(A) |
申请公布日期 |
1994.04.05 |
申请号 |
US19920993435 |
申请日期 |
1992.12.21 |
申请人 |
WOODSON, DENNIS W.;MILLER, RICHARD L. |
发明人 |
WOODSON, DENNIS W.;MILLER, RICHARD L. |
分类号 |
A01K63/06;F25B21/04;(IPC1-7):F25B21/02 |
主分类号 |
A01K63/06 |
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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