发明名称 DISPOSITIF D'EVACUATION DES COPEAUX, POUSSIERES ET DECHETS ANALOGUES, PLUS PARTICULIEREMENT POUR PERCEUSES A MAIN, PENDANT L'OPERATION DE PERCAGE
摘要 A device is provided for use with a hand drilling apparatus having a drill bit for discharging the debris formed by drilling into an object, said device comprising a chamber means positioned with respect to said drilling apparatus such that said chamber means is located over the borehole made by said drilling apparatus wherein said drill bit is movable within said chamber; a vacuum means for reducing the pressure in said chamber means; and a duct means for connecting said vacuum means to said chamber means, whereby the debris formed by the drilling collects in said chamber means and is withdrawn therefrom by said vacuum means through said duct means.
申请公布号 FR2339460(A1) 申请公布日期 1977.08.26
申请号 FR19770001700 申请日期 1977.01.21
申请人 LOEVENICH NORBERT 发明人
分类号 B23Q11/00;(IPC1-7):23B45/00;21C19/00;21C7/02;25D17/18 主分类号 B23Q11/00
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