发明名称 METHOD FOR PRODUCING A SCREW FOUNDATION
摘要 A method for producing a screw foundation (1) for anchoring building parts or structures in the ground, comprising the following steps: providing a tubular starting material (10) with a required length, laying a free end (12) of the tubular starting material (10) between at least two shaped elements (20), securing the tubular starting material (10) in its longitudinal direction, compressing the free end (12) of the tubular starting material (10) by moving together the at least two shaped elements (20), with the result that an at least partially tapering region (14) is formed on the free end (12) of the tubular starting material (10), and forming a screw-like or helical thread (16) on the at least partially tapering region (14).
申请公布号 US2011250977(A1) 申请公布日期 2011.10.13
申请号 US200913129381 申请日期 2009.10.09
申请人 TERRAFIX GMBH 发明人 REISCH STEPHAN
分类号 B21H3/02 主分类号 B21H3/02
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