Method for cleaning pipe

Details Method for cleaning pipe Method for cleaning pipe

1991-01-02

1991-10-15

Smith, James G.

Abrasive tool making process, material, or composition

With carbohydrate or reaction product thereof

51429, B24C 306

Patent

active

050562711

ABSTRACT:
A self propelled carriage (28) has a housing (30) comprised of a center body section (51) and a pair of side sections (52) hinged (54) to the body section (51). Side sections (52) may be swung to an open "clamshell" like position for lowering of the carriage (28) onto the pipe (10) for travel along the pipe (10). Nozzle (72) for the discharge of abrasive particles, such as sand, are mounted for oscillating movement in a predetermined stroke to cover a predetermined outer surface area of the pipe (10) for cleaning the pipe and for providing a rough finish for the application of a coating.

REFERENCES:
patent: 1611920 (1926-12-01), Kinzbach
patent: 1815573 (1931-07-01), McManis
patent: 1910497 (1933-05-01), Peix
patent: 1926387 (1933-09-01), Jansen
patent: 2621446 (1952-12-01), Russell
patent: 3362109 (1968-01-01), Wallace
patent: 4205694 (1980-06-01), Thompson et al.
patent: 4603516 (1986-08-01), Hoffman
patent: 4677936 (1987-07-01), Dehlm
patent: 4953496 (1990-09-01), Taylor et al.
European Publication No. 0343878 published Nov. 29, 1989.

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