发明名称 |
Drain sealing device |
摘要 |
A drain seal for rapidly sealing the apertures in a drain grate, the drain seal composed of a mat of polymeric material and having a pair of opposing sealing surfaces and internally disposed reinforcement members to increase structural integrity.
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申请公布号 |
US6530722(B1) |
申请公布日期 |
2003.03.11 |
申请号 |
US20010952737 |
申请日期 |
2001.09.14 |
申请人 |
SHAW MARK D.;HEYMAN J. TAD;BIERCE LAURENCE M. |
发明人 |
SHAW MARK D.;HEYMAN J. TAD;BIERCE LAURENCE M. |
分类号 |
E03F1/00;(IPC1-7):A47K1/14;E02B1/00 |
主分类号 |
E03F1/00 |
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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