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US 4,225,362 AGranted
Method for cleaning the interior of tubes
AssigneeRichard R. Paseman
InventorJohn S. Sentell
Life of this patent
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Abstract
A spray head with nozzles is carried on a lance to spray high pressure fluid, such as water, to clean the interior of tubes, such as those in heat exchangers. The fluid, in addition to cleaning the interior of the tube, is used to both rotate the lance and move the lance into and out of the tube.
Claims7
A method of cleaning the interior of pipes, tubes and like elongate tubular objects with pressurized fluid, comprising:
- (a) directing the fluid from a spray head at an end of a lance against the interior of the object for cleaning same;
- (b) transporting the spray head through the object being cleaned;
- (c) supplying the fluid to the spray head through the lance;
- (d) causing, with the pressurized fluid, reciprocating longitudinal movement of the spray head through the object being cleaned;
- and
- (e) causing, with the pressurized fluid, rotational movement of the spray head during longitudinal movement thereof to assist in cleaning the object.
3 more elements
Dependencies are inferred from the claim text.