Unicast paraffin removing pipeline pig incorporating multiple di

Details Unicast paraffin removing pipeline pig incorporating multiple di Unicast paraffin removing pipeline pig incorporating multiple di

1996-03-29

2000-03-21

Cooley, Charles E.

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

166153, B08B 904

Patent

active

060387254

ABSTRACT:
A bendable, unicast pig formed of polyurethane is disclosed. It has symmetrical front and rear end discs, seal discs there between and can wipe paraffin from a pipe. The body is devoid of intermediate discs to bend about 15.degree. or more.

REFERENCES:
patent: 2276109 (1942-03-01), Smith
patent: 2544290 (1951-03-01), Bailey
patent: 2763017 (1956-09-01), Redin
patent: 4069535 (1978-01-01), Cato
patent: 4603449 (1986-08-01), Knapp
patent: 4663795 (1987-05-01), Neff
patent: 4726089 (1988-02-01), Knapp

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