发明名称 Spike roller for axial feeding or rotation of a log
摘要 A roller for grasping a log for axial movement or rotation of a log, the roller including spike bars fastened on the cylindrical surface of the roller. The spike bars are formed of alloy steel feature an improved type of spike having planar side surfaces that converge to a pointed end. The improved spikes grip and hold logs at lower average pressures over an extended period of use than conventional conical spikes.
申请公布号 US2002062879(A1) 申请公布日期 2002.05.30
申请号 US20020055830 申请日期 2002.01.22
申请人 JOHNSON YVON;JOHNSON DENIS 发明人 JOHNSON YVON;JOHNSON DENIS
分类号 B27B25/02;B27B31/00;(IPC1-7):B27C1/12;B27C5/02 主分类号 B27B25/02
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