发明名称 Digging tooth
摘要 A digging tooth including a body portion and a plurality of hard water resistant conical inserts. The body portion includes a generally planar distal portion, a medial portion, and a bifurcated proximal portion having at least two prongs separated from each other to form a slot. The conical inserts are secured to and spaced along said distal portion and have a generally cylindrical body portion and a top portion which tapers to a point to form a tip, wherein the ratio of the diameter of the cylindrical body portion to the spacing distance between the tips of the conical inserts is between 0.50 and 0.80 and, preferably, 0.72.
申请公布号 US5067262(A) 申请公布日期 1991.11.26
申请号 US19900562343 申请日期 1990.08.03
申请人 KENNAMETAL INC.;REEDRILL, INC. 发明人 STIFFLER, STEPHEN P.;BEACH, WAYNE H.;FROST, ROBERT L.
分类号 E02F9/28 主分类号 E02F9/28
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