Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Reexamination Certificate
2005-04-05
2005-04-05
Warden, Sr., Robert J. (Department: 1744)
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
C015S104030, C015S104050
Reexamination Certificate
active
06874193
ABSTRACT:
A pipeline pig that is moved by pressurized gas flow and that provides for distribution of treating liquid subsisting in the lower portion of the pipeline, having a pig body with a nose cone at a foward end thereof, centralizers affixed to the pig body by which it is supported in the pipeline, a bypass passageway within the nose cone communicating with the pipeline interior, a siphon passageway within the nose cone communicating with a lower portion of the pipeline interior and therby with any liquid subsisting therein and having an outlet end, and a venturi in communication with the siphon passageway and the bypass passageway, gas flowing through the bypass passageway serving to draw liquid from the lower portion of the pipeline through the siphon passageway whereby the liquid is discharged form the siphon passageway outlet end onto ineterior surfaces of the pipeline.
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Balsis Shay L
Gable & Gotwals
Johnson Paul H.
TDW Delaware Inc.
Warden, Sr. Robert J.
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