发明授权
- 专利标题: Pipeline pig
- 专利标题(中): 管线皮
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申请号: US3704478D申请日: 1971-02-25
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公开(公告)号: US3704478A公开(公告)日: 1972-12-05
- 发明人: VERNOOY BURTON
- 申请人: WILLIAMSON INC T
- 专利权人: Williamson Inc T
- 当前专利权人: Williamson Inc T
- 优先权: US11863871 1971-02-25
- 主分类号: B08B9/04
- IPC分类号: B08B9/04 ; B08B9/055
摘要:
The pipeline pig disclosed includes a cup-shaped cleaning element having a spherically shaped outer surface with a diameter equal to or greater than the inside diameter of the pipeline for engaging a pipeline inner wall even as the pig passes through curved sections of the pipeline. The cleaning element has a plurality of grooves in its outer surface that provide a plurality of scraping edges to scrape rust, scale, and other substances from the inner wall of the pipeline.