发明名称 |
Audible fill level alarms for liquid storage vessels |
摘要 |
An audible fill level alarm is provided. The alarm includes a whistle body having a lower whistle hole, a whistle-tube depending from said whistle body, and a whistle disk having an upper whistle hole. The whistle disk and the whistle body define a whistle chamber that is conical in shape.
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申请公布号 |
US7497185(B2) |
申请公布日期 |
2009.03.03 |
申请号 |
US20060552594 |
申请日期 |
2006.10.25 |
申请人 |
OIL EQUIPMENT MANUFACTURING, LLC |
发明人 |
GUDJOHNSEN EINAR P.;SHUKIS PETER J. |
分类号 |
G01F23/00 |
主分类号 |
G01F23/00 |
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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