发明名称 |
Compressed air drain opening device |
摘要 |
An air plunger is described. The air plunger comprises an upper barrel and a lower barrel slidably received by the upper barrel. An air seal is fixed to the lower barrel and slidably engages with the upper barrel. A nozzle is attached to the lower barrel opposite to the upper barrel. A stop mechanism prohibits the upper barrel from disassociating with the lower barrel.
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申请公布号 |
US6862753(B2) |
申请公布日期 |
2005.03.08 |
申请号 |
US20030436515 |
申请日期 |
2003.05.13 |
申请人 |
LEAPHART, JR. J. KIRK;LEAPHART C. MARK |
发明人 |
LEAPHART, JR. J. KIRK;LEAPHART C. MARK |
分类号 |
E03C1/308;(IPC1-7):E03D9/00 |
主分类号 |
E03C1/308 |
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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