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    • 8. 发明授权
    • Twist drill
    • 麻花钻
    • US07837418B2
    • 2010-11-23
    • US11532232
    • 2006-09-15
    • Wolfgang LangGünter Schreiner
    • Wolfgang LangGünter Schreiner
    • B23B51/02
    • B23B51/02B23B2251/04B23B2251/043B23B2251/14B23B2251/244B23B2251/402Y10T408/909Y10T408/9097
    • Twist drill with a drill shaft and a cutting part that extends to a drill tip, with spiral chip flutes along the cutting part that form a drill core, wherein the drill diameter and/or core thickness diminish or taper from the drill tip toward the shaft. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.
    • 具有钻杆轴和切割部分的扭转钻头,其延伸到钻头末端,沿着切割部分的螺旋切屑槽形成钻芯,其中钻头直径和/或芯部厚度从钻头尖端朝向轴线减小或渐缩 。 披露摘要根据37 C.F.R.的要求提交。 §1.72(b)。 如37 C.F.R. §1.72(b):说明书中的技术性披露的简要摘要必须在单独的表格上开始,最好是在权利要求之后,在“披露摘要”标题下。摘要的目的是使专利和商标 办公室和公众一般从粗略检查中快速确定技术披露的性质和要点。 摘要不得用于解释权利要求的范围。 因此,与摘要有关的任何陈述不旨在以任何方式限制权利要求,也不应被解释为以任何方式限制权利要求。