Cleaning plug assembly

Details Cleaning plug assembly Cleaning plug assembly

1989-11-03

1990-07-03

Hornsby, Harvey C.

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

166170, 166176, B08B 904

Patent

active

049379070

ABSTRACT:
A cleaning plug assembly for cleaning condenser and heat exchanger tubes and the like is disclosed. The plug is adapted to be propelled through a tube by fluid pressure injected into the tube, and includes an elongated body supporting annular rings extending radially outwardly for contacting the inner surface of a tube. The rings are selectively removable from the body of the plug and are formed to circumferentially contract and expand within the tube to be cleaned. The rings are secured against free rotation on the plug body by projections formed in circumferential grooves formed on the body for receiving the rings. The projections are sized to allow contraction of the rings.

REFERENCES:
patent: 1424336 (1922-08-01), Bowman
patent: 3283123 (1964-03-01), Atkinson et al.
patent: 3827492 (1974-08-01), Hammon et al.
patent: 3939519 (1976-02-01), Muirhead

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