发明名称 Method and apparatus suitable for grasping an annular workpiece
摘要 An annular workpiece is grasped by inserting a wedging member having two ends into the annular portion of the workpiece wherein the wedging member is longer than the diameter of the annular portion of the workpiece and positioning the ends of the wedging member against the inside surface of the annular workpiece.
申请公布号 US4083593(A) 申请公布日期 1978.04.11
申请号 US19760681359 申请日期 1976.04.29
申请人 PHILLIPS FIBERS CORPORATION 发明人 LYNN, JAMES R.
分类号 B66C1/54;(IPC1-7):B66C1/42 主分类号 B66C1/54
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