Spheroid pig launcher

Details Spheroid pig launcher Spheroid pig launcher

1982-05-10

1984-03-13

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

166 70, B08B 904

Patent

active

044358725

ABSTRACT:
An improvement in a launcher for launching spheroid pigs one at a time into a pipeline, having a downward sloping barrel magazine for holding a multiplicity of spheroid pigs and having a closable fluid tight opening for loading the pigs on the breech end and a full bore opening valve on the muzzle end in fluid communication with a pipeline, is characterized by apparatus situated in the barrel magazine upstream of the full bore valve for releasing the pigs one at a time into the pipeline from the magazine. The releasing apparatus of the improvement comprises:

REFERENCES:
patent: 3148689 (1964-09-01), Bean et al.
patent: 3169263 (1965-02-01), Eagleton
patent: 3216500 (1965-11-01), Diehl
patent: 3224247 (1965-12-01), Barrett, Jr.
patent: 3266077 (1966-09-01), Elliott et al.
patent: 3444928 (1969-05-01), Pitts
patent: 4351079 (1982-09-01), Fitzpatrick

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