Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Werner Schwager0
Herbert Martin0
Manfred Michelfelder0
Martin Stiegler0
Andreas Collmer0
Date of Patent
May 8, 2007
0Patent Application Number
114344110
Date Filed
May 15, 2006
0Patent Primary Examiner
Patent 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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