Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Patent
1999-02-01
2000-09-26
Till, Terrence R.
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
B08B 902
Patent
active
061227919
ABSTRACT:
A pig for pumping thru pipelines for the cleaning of the pipelines which provides for fishing neck type profiles for remote attachment and removal in case of pipeline blockages, provides for the fishing neck type profiles to include valving which will allow communication between the ends of the pig to prevent hydraulic locking in the high pressure ambient condition of subsea pipelines, and provides for interconnection and operation of valving on each end of the pig.
REFERENCES:
patent: 3052302 (1962-09-01), Lagucki
patent: 3857132 (1974-12-01), Knapp et al.
patent: 5950271 (1999-09-01), Boyer
"Volume of the Composite Catalog of Oilfield Equipment and Services", p. 3352, 1992.
"Pipeline & Gas magazine", 1999.
Baugh Benton F.
Crawford Jim Bob
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