发明名称 Reciprocating striker type pneumatic hammer - has striker tail end space connected via chamber to atmosphere
摘要 <p>The pneumatic hammer has a housing in which a striker reciprocates this having a relieved middle portion and a space at the tail end open towards the rear. Gas under pressure is delivered alternately to the tail end space and that round the relieved portion. The tail end space (7) opens into a chamber in the housing (14) extending in the axial direction, and which at the other end is freely connected to atmosphere.</p>
申请公布号 DE2106681(B2) 申请公布日期 1977.05.05
申请号 DE19712106681 申请日期 1971.02.12
申请人 发明人
分类号 B25D9/14;B25D17/24;(IPC1-7):E21B7/00;E21C3/24;E21B1/06;E21B11/02 主分类号 B25D9/14
代理机构 代理人
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