Brooklyn Union

Mario J Carbone

Samples of contaminants are obtained from the interior surface of a pipe main by inserting, through an opening in the pipe main, an inflatable pillow bag or balloon-like element in deflated and collapsed condition, and having a swab affixed to its outer surface. The balloon-like element is inflated inside the pipe main to extend the swab to a generally planar configuration and to press it against the inner surface of the pipe main so that it absorbs contaminants from the surface. The balloon-like element, with the swab attached, is then deflated and recollapsed; and together with the swab, is withdrawn from the pipe main.

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Bayside, NY, United States of America

Mario J Carbone