发明名称 |
DUCT FASTSEAM |
摘要 |
A seam for ductwork has a male end portion integrally formed at a distal end of a duct wall and a female end portion integrally formed at another distal end of the duct wall. The female end portion includes a first fold and a second fold, which define a female groove for accommodating the male portion. A distal end of the second fold is bent transverse to the female groove prior to the male portion being inserted into the female groove.
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申请公布号 |
US2010135720(A1) |
申请公布日期 |
2010.06.03 |
申请号 |
US20100698492 |
申请日期 |
2010.02.02 |
申请人 |
MET-COIL SYSTEMS CORPORATION |
发明人 |
TOBEN JOHN J.;SHAH ASHOK M.;BLUM RICHARD F.;BORWIG MICHAEL C. |
分类号 |
F16L21/00;F16L9/00;F16L25/00;F24F13/02 |
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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