Pipeline pig
Patent
·
OSTI ID:6816460
A pipeline pig includes a cupshaped 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 number of grooves in its outer surface that provide a number of scraping edges to scrape rust, scale, and other substances from the inner wall of the pipeline. (2 claims)
- Assignee:
- Williamson (T.D.) Inc.
- Patent Number(s):
- US 3704478
- OSTI ID:
- 6816460
- Country of Publication:
- United States
- Language:
- English
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