发明名称 Flange turning process/machine
摘要 A spiral pipe has an integrated radial flange. A machine for forming such a flange comprises a rotor which rotates and a flange roller mechanism connected to the rotor via slides. As the rotor rotates, the flange roller mechanism moves radially via the slides to form an integrated flange on an end portion of the spiral pipe.
申请公布号 US7257975(B1) 申请公布日期 2007.08.21
申请号 US20040925386 申请日期 2004.08.25
申请人 SHEET METAL CONNECTORS, INC. 发明人 STAUFFACHER GLENN;MYERS JEROME J.
分类号 B21D3/02 主分类号 B21D3/02
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