发明名称 FRICTION ROCK STABILIZERS
摘要 This invention relates to a friction rock stabilizer which is made from a resilient metal tube which is of constant circular cross-sectional shape over a substantial portion of its length with the tube including a portion of its length which is outwardly flared to a larger cross-sectional dimension towards one end of the tube, a circumferential stop which projects radially outwardly from the flared end of the tube and a slot which extends through the stop and the tube over the entire length of the tube to enable the stop and the tube to be reduced in cross-section over the entire lengtll of the stabilizer by a reduction in the width of the slot.
申请公布号 CA2128990(A1) 申请公布日期 1995.01.31
申请号 CA19942128990 申请日期 1994.07.27
申请人 HUGOTEK (PROPRIETARY) LIMITED 发明人 SWEMMER, THEODORE D.
分类号 E21D;E21D21/00;(IPC1-7):E21D21/00 主分类号 E21D
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