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PIG AND METHOD FOR CLEANING TUBES

  • US 20010047811A1
  • Filed: 09/24/1998
  • Published: 12/06/2001
  • Est. Priority Date: 09/24/1998
  • Status: Active Grant
First Claim
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1. A pig for cleaning tubes, comprising:

  • a hollow body having a circular cross-section in at least one plane perpendicular to an axis of the body, the body having an outer periphery; and

    scraping edges forming the outer periphery of the body, wherein the scraping edges are longitudinal edges of a wire.

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