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专利名称：Pipeline scraper发明人：Hubert Skibowski申请号：US07/539584申请日：19900618公开号：US05127125A公开日：19920707
摘要：A pipeline scraper comprising an elongated scraper body of preferablyelastomeric solid material, having at least one annular sealing surface on both sides of asection having a smaller diameter, the distance between the sealing surfaces being equalto or smaller than the internal diameter of the pipeline, whereby on both sides of thesection having a smaller diameter, at least one annular ridge-like, radial lip is providedwhich has a height which is at most a fifth to a tenth of the radius of the scraper body inthe area of the sealing lip, with the distance of the scraper body from the pipeline in thearea of the sealing lip corresponding to the 0.5- to 0.75-fold of the height of the lip andthe sealing lip being formed and dimensioned such that upon getting into contact withthe pipeline wall it is deflected and bent-off, respectively, such that the associated edgeand the lateral face of the sealing lip get into contact with the pipeline wall, however, stillleave a space to the scraper body.
申请人：I.S.T. MOLCHTECHNIK GMBH
代理机构：Vidas & Arrett
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