发明名称 HOLE CUTTER WITH AXIALLY-ELONGATED APERTURE DEFINING MULTIPLE FULCRUMS
摘要 <p>A hole cutter has a cylindrical blade body including a cutting edge and one or more axially-elongated apertures formed within a side wall of the blade body. The axially-elongated aperture is configured to receive a lever, such as a screwdriver, therethrough. Each axially- elongated aperture includes a first fulcrum axially spaced adjacent to the cutting edge, a second fulcrum axially spaced further away from the cutting edge than the first fulcrum, and optionally a third fulcrum axially spaced between the first and second fulcrums. A lever, such as a screwdriver, can be inserted into the aperture and placed against each of the fulcrums to lever slugs out of the interior of the blade body.</p>
申请公布号 CA2787240(A1) 申请公布日期 2011.07.21
申请号 CA20112787240 申请日期 2011.01.13
申请人 IRWIN INDUSTRIAL TOOL COMPANY 发明人 NOVAK, JOSEPH THOMAS;GREEN, MATTHEW CHRISTOPHER
分类号 B23B51/05 主分类号 B23B51/05
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