Scraper for a pipe pig

Details Scraper for a pipe pig Scraper for a pipe pig

1993-08-05

1995-01-10

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

B08B 902

Patent

active

053794753

ABSTRACT:
A scraper for a pipeline pig. The scraper is made from a single metal blank, having a plurality of fins disposed radially about a common central axial member. Each fin includes a scraping end and a connector end. The connector end is connected to the common central axial member, and the scraping end extends circumferentially outward from the connector end. Each scraping end preferably forms a quarter circle, and the fins are connected in plural pairs to the common central axial member with adjacent pairs rotationally offset in relation to each other about the common central axial member, preferably about 45.degree. apart. In use, the scraper is embedded in an elastic pig body.

REFERENCES:
patent: 1547440 (1925-07-01), Penn
patent: 1683429 (1928-09-01), Walker
patent: 1835238 (1931-12-01), Oberhuber
patent: 2170997 (1939-08-01), Griffin
patent: 2317542 (1943-04-01), Lincoln
patent: 3939519 (1976-02-01), Muirhead
patent: 4077079 (1978-03-01), Knapp
patent: 4081875 (1978-04-01), Nishino
patent: 4244073 (1981-01-01), Sagawa
patent: 4406031 (1983-09-01), Eimer et al.
patent: 4876761 (1989-10-01), Sagawa

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