Petroleo Brasileiro S.a. - Petrobras

Marcelino Guedes Ferreira Mosqueira Gomes

Antonio Carlos Ferreira Lino

Fernando Borja Pereira

The present invention relates to a device,for scraping the inner walls of a pipeline. The device has (i) a flexible shaft,of elastomeric material, (ii) a plurality of groups of flexible radial scraping bars,which are spaced apart and offset angularly so that the bars are able to scrape substantially the entire inner surface of the pipeline, and (iii) a flexible covering,which coats the entire assembly formed by the said flexible shaft and by the bars, with the exception of the outer ends of the bars.

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Rio de Janeiro, Brazil

Marcelino Guedes Ferreira Mosqueira Gomes