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公开(公告)号：US5993305A
公开(公告)日：1999-11-30
申请号：US184139
申请日：1998-10-31
申请人： Eric Chu
发明人： Eric Chu
摘要： A dust remover for power sander includes a dust collecting hood secured on the sander and fluidically communicated with a vacuum system formed in or attached to the sander, having a resilient bellows portion formed on a lower portion of the hood for covering a sanding pad as driven by a motor of the sander and a bottom flange having a plurality of apertures or perforations circumferentially formed in the flange, with the bellows portion resiliently expanding to retain the bottom flange on a working surface; whereby upon vacuum suction in the sander to form at least an air stream as drafted from the outside into the inside of the hood, the dusts, as produced when operating the sander, will be sucked inwardly into the hood as laden in the air stream to be finally collected and disposed for preventing air pollution and for enhancing occupational health.
摘要翻译： 用于动力磨光机的除尘器包括固定在砂光机上并与形成在砂光机上或附着在砂光机上的真空系统流体连通的集尘罩，其具有形成在罩的下部上的弹性波纹部分，用于将打磨垫覆盖为被驱动 通过砂光机的马达和底部凸缘，该底部凸缘具有周向形成在凸缘中的多个孔或穿孔，波纹部分弹性膨胀以将底部凸缘保持在工作表面上; 由此在砂光机中进行真空抽吸以形成至少从外部进入罩的内部的空气流，当操作砂光机时产生的灰尘将被吸入到气流中的空气流中， 最终收集处理，防止空气污染和提高职业健康。
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2.发明授权
公开(公告)号：US5533579A
公开(公告)日：1996-07-09
申请号：US331707
申请日：1994-10-31
申请人： Eric Chu
发明人： Eric Chu
CPC分类号： B25D9/08 , B25D17/245
摘要： A pneumatic tool includes: a main cylinder having an operating lever for on-off control for the supply of compressed air into the pneumatic tool, a barrel member resiliently coupled to the main cylinder and having a tool unit secured at its front end portion, and an automatically closed throttle valve held in the main cylinder, whereby upon touching on a working object when starting the pounding job, the barrel member will be retracted to open the throttle valve for performing the pneumatic operation by the pneumatic tool; and when subjected to no load condition, the throttle valve will be restored and closed automatically to temporarily stop the pounding of the pneumatic tool to minimize vibration hazard, and an air cushion is inherently formed between the barrel member and the main cylinder for dampening or absorbing the vibration shock of the pneumatic tool.
摘要翻译： 气动工具包括：主缸，其具有用于对压缩空气供应到气动工具中的用于开关控制的操作杆;弹性地联接到主缸并具有固定在其前端部分上的工具单元的筒构件，以及 保持在主缸中的自动关闭的节流阀，由此当开始冲击作业时接触工作物体时，筒构件将被缩回以打开节流阀，以通过气动工具执行气动操作; 并且当经受无负载状态时，节气门将被自动恢复和闭合，以暂时停止气动工具的冲击以最小化振动危害，并且在筒构件和主气缸之间固有地形成气垫用于阻尼或吸收 气动工具的振动冲击。
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