Hydraulically dynamic mono-pig scraper
First Claim
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1. A pig scraper for cleaning a coating agent conduit of a coating unit comprising:
- a body having a length and a longitudinal axis; and
at least one sealing lip extending from said body substantially parallel to a longitudinal axis of said body.
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Abstract
The invention concerns a pig scraper for cleaning the inside wall of a coating agent conduit. The pig scraper includes a body insertable in the conduit and at least one sealing lip that seals against the inside wall of the conduit and extends parallel to a longitudinal axis of the body. A space is defined between the sealing lip and the body to form a pocket for enhancing the sealing of the sealing lip with respect to the conduit. The length of the sealing lip substantially prevents the lip from folding over on itself in response to a change in the direction of movement of the pig scraper in the conduit.
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Citations
15 Claims
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1. A pig scraper for cleaning a coating agent conduit of a coating unit comprising:
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a body having a length and a longitudinal axis; and
at least one sealing lip extending from said body substantially parallel to a longitudinal axis of said body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification