发明名称 Powered pipe wrench
摘要 A pipe wrench is provided having a elongated housing, a motor disposed within the housing, and a pipe attachment structure connected to the housing. A rotatable shaft extends from within the housing, transverse to the axis of the housing, and is rotated by the motor. A pair of drive rollers are mounted on the shaft. The pipe wrench further includes a support structure on the housing, a curved retaining arm pivotally mounted on the support structure, and a plurality of free-spinning rollers mounted on the retaining arm. In use, a pipe is placed within the retaining arm in contact with the free-spinning rollers and the handle is moved to bring the drive rollers into contact with the pipe. The motor causes the shaft to rotate which then rotates the pipe.
申请公布号 US2001003253(A1) 申请公布日期 2001.06.14
申请号 US20000729864 申请日期 2000.12.06
申请人 MCDONNELL ROBERT L. 发明人 MCDONNELL ROBERT L.
分类号 B25B13/50;B25B21/00;(IPC1-7):B25B13/28 主分类号 B25B13/50
代理机构 代理人
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