发明名称 |
Integral ductwork diffuser |
摘要 |
Apparatus and a corresponding method for forming from a strip of sheet metal stock material a length of spiral duct that includes an integral diffuser. A perforator forms perforations in the strip at at least selected intervals. A machine forms the strip, after perforation, into spiral seamed duct. |
申请公布号 |
AU3059702(A) |
申请公布日期 |
2002.06.18 |
申请号 |
AU20020030597 |
申请日期 |
2001.12.07 |
申请人 |
OVALFORMER LLC |
发明人 |
MILLER S. PRICE;MARK A. FRONING;GREGORY C. MOYERS |
分类号 |
B21C37/12;F16L9/16;F24F13/02;F24F13/06 |
主分类号 |
B21C37/12 |
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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