发明授权
US4494584A Device for filling a pipe with fluids, for emptying fluids from a pipe
and for drying a pipe
失效
用于向流体填充管道的装置，用于从管道排出流体并干燥管道
- 专利标题： Device for filling a pipe with fluids, for emptying fluids from a pipe and for drying a pipe
- 专利标题（中）： 用于向流体填充管道的装置，用于从管道排出流体并干燥管道
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申请号： US445741申请日： 1982-11-30
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公开(公告)号： US4494584A公开(公告)日： 1985-01-22
- 发明人: Antonio Rognoni
- 申请人： Antonio Rognoni
- 专利权人： Antonio Rognoni
- 当前专利权人： Antonio Rognoni
- 优先权： ITX44017A/81 19811202
- 主分类号： B08B9/057
- IPC分类号： B08B9/057 ; F16L55/128 ; F16L55/40 ; B65B3/04
摘要：
A device for emptying fluid from a pipe and for filling the pipe with another fluid while preventing the fluids from mixing comprising a sealing gasket attached to the head end of a tubular support member which presses against the inner wall of the pipe to maintain the separation of the fluids while also drying the inner wall, and a breaking unit attached to the support member for slowing the movement of the device within the pipe thereby slowing the velocity of the fluid filling the pipe.