Cleaning and liquid contact with solids – Processes – Hollow work – internal surface treatment
Patent
1989-11-20
1991-05-07
Schwadron, Martin P.
Cleaning and liquid contact with solids
Processes
Hollow work, internal surface treatment
165 94, 165 95, 1510405, 138 38, B08B 902
Patent
active
050133683
ABSTRACT:
The invention relates to a method for the continuous cleaning of the inside of a tube in which a fluid circulates, in which method there is continuously driven in rotation within the tube by the fluid a movable element, one end of which is fastened to one end of the tube through a mechanical linkage permitting it to rotate freely on itself about the axis of the tube. In accordance with the invention, the movable element comprises at least one sharp edge designed to scrape the inner surface of the tube, this edge being disposed so that during the rotation of the movable element it is, along every cross section of the tube, the portion of the movable element farthest removed from the axis of the tube.
REFERENCES:
patent: 2117175 (1938-05-01), Kaster
patent: 2943845 (1960-07-01), Jaklitsch
patent: 4174750 (1979-11-01), Nichols
patent: 4781245 (1988-11-01), Freychet et al.
patent: 4848446 (1989-07-01), Freychet et al.
patent: 4858682 (1989-08-01), Odelstam
Freychet David
Loutaty Roben
Maroy Pierre
Patureaux Thierry
Compagnie de Raffinage et de Distribution Total France
Flanigan Allen J.
Safford A. Thomas
Schwadron Martin P.
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