发明授权
US06893150B2 System for preventing the accumulation of concrete from a flight in a concrete mixing drum
失效
用于防止混凝土从混凝土搅拌滚筒中飞行的积聚的系统
- 专利标题： System for preventing the accumulation of concrete from a flight in a concrete mixing drum
- 专利标题（中）： 用于防止混凝土从混凝土搅拌滚筒中飞行的积聚的系统
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申请号： US10266879申请日： 2002-10-08
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公开(公告)号： US06893150B2公开(公告)日： 2005-05-17
- 发明人: Leon A. Burch
- 申请人： Leon A. Burch
- 代理机构： Edwards & Angell LLP
- 主分类号： B01F15/00
- IPC分类号： B01F15/00 ; B08B7/02 ; B08B9/08 ; B08B9/093 ; B28C5/08 ; B28C5/18 ; B28C5/42 ; B28C5/20
摘要：
A system for removing concrete from a helical flight extending along the interior surface of a concrete mixing drum that includes an expandable conduit configured to move between an unexpanded position and an expanded position to dislodge concrete accumulated thereon during rotation of the drum.
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