发明名称 Device for cutting circular openings in pipe, vessels, and flat material
摘要 A circle cutting device that is particularly useful for cutting openings through pipe and round vessels and may also be utilized for cutting circular openings through flat material. The device utilizes a conventional oxygen acetylene cutting torch or plasma cutter and also may be angled to provide a means for bevel cutting circular openings at a desired angle. The device is portable and easily used in field operations by a craftsman.
申请公布号 US6022506(A) 申请公布日期 2000.02.08
申请号 US19990275828 申请日期 1999.03.25
申请人 SIMMONS, CHARLES W. 发明人 SIMMONS, CHARLES W.
分类号 B23K7/10;(IPC1-7):B23K7/00 主分类号 B23K7/10
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