发明授权
- 专利标题： Pneumatic waste line clean-out tool
- 专利标题（中）： 气动废线清理工具
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申请号： US886769申请日： 1992-05-21
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公开(公告)号： US5239708A公开(公告)日： 1993-08-31
- 发明人: Lawrence F. Irwin
- 申请人： Lawrence F. Irwin
- 专利权人： Lawrence Irwin F
- 当前专利权人： Lawrence Irwin F
- 主分类号： E03C1/308
- IPC分类号： E03C1/308
摘要：
A mechanically operated pneumatic cleanout tool for clearing blockages in waste lines. The tool, which is readily adaptable for use in wash basins, bath tubs, toilets, bidets and the like embodies a novel safety pressure relief valve which prevents hazardous failure of the device in the event that excessive pressure is inadvertently builtup within the air chamber of the device.