专利名称：Apparatus for driving pipes through the
ground
发明人：Paul Schmidt申请号：US06/751082申请日：19850702公开号：US04650374A公开日：19870317
摘要：In an apparatus for driving open-ended pipes through the ground, a hollowintermediate piece having a truncated conical transition portion with outlet openings forthe removal of soil, which is forced into the pipe during driving, is disposed between therearward end of the pipe and a pneumatic rammer for driving the pipe.
申请人：SCHMIDT; PAUL
代理机构：Toren, McGeady and Goldberg
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容