Patent ID: 8671495
Filing Date: 2014-03-18
Classification: B05B

Abstract:
1. A pig traversable through a conduit delivering a liquid, comprising: a pig body being integrally formed; a resilient flexible generally frustoconical sealing lip extending from said pig body and having a leading frustoconical wall extending rearward from a distal end of said sealing lip increasing in thickness toward an apex of said sealing lip, said distal end of the sealing lip forming an angle with the leading frustoconical wall, the sealing lip further having a following surface defining a following frustoconical wall extending rearward from said apex to an annular protuberance, said following surface defined by a substantially straight line in an axial direction along a surface of the pig body from said apex to a location at which said following wall mates to said annular protuberance, said sealing lip surrounding said pig body and having a major diameter greater than an internal diameter of the conduit; said annular protuberance extending from said body portion radially outwardly inboard of said sealing lip thereby protecting said sealing lip.