发明名称 |
Unitary reduction duct |
摘要 |
A unitary annular reduction duct suitable for joining pipes comprising an annular entrance collar of a given diameter, a corrugated and gradually inwardly tapered reduction portion that is contiguous with the collar section and a corrugated and substantially vertical annular exit portion contiguous with the reduction portion whereby the reduction portion has a diameter less than the collar section. The reduction duct may also be used to join pipes of different shapes.
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申请公布号 |
US6543489(B1) |
申请公布日期 |
2003.04.08 |
申请号 |
US20020136945 |
申请日期 |
2002.05.01 |
申请人 |
BUILDING MATERIALS INVESTMENT CORPORATION |
发明人 |
LUCE CLAIR A.;SHUCK RONALD D. |
分类号 |
F16L21/00;(IPC1-7):F16L9/00 |
主分类号 |
F16L21/00 |
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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