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US 2003/0192835 A1Published application
Water main recirculating/filtering/flushing system and method
AssigneeNone recorded
InventorChris E. Wilkinson
Life of this patent
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AssigneeNone recorded
InventorChris E. Wilkinson
Estimating the term…
A truck houses a closed recirculation system having a series of hoses, filters and pumps interconnecting a first point and second point, preferably hydrants, of a water supply system. A flow of water pumped outside of the water supply system through the filters causes an increased water flow within the section of the water supply system between the second and the first point to clean the section of deposits, sediment, particulates and other undesirable matter. All of the filtered water is returned to the water supply system. The water may be inspected and chlorinated.
A re-circulating/filtering/flushing system for cleaning water supply systems in an environmentally responsible and efficient manner, the system comprising:
A method of re-circulating/filtering/flushing for cleaning water supply systems in an environmentally responsible and efficient manner, the method comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Using pressurised, pulsating or purging fluid: control mechanisms therefor
Fluid cleaning or flushing: liquid cleaning or flushing
Cleaning in general
Technical subjects covered by former us classification
Term end not estimated
1. Field of the Invention
The present invention relates to a method and equipment for flushing a water main and in particular to a pump and filter system and method of flushing a section of water main between hydrants filtering the sediment and particulates out of the water and recirculating it back into the water main without wasting the water.
2. Description of the Prior Art
These and other details of my invention will be described in connection with the accompanying drawing, which is furnished only by way of illustration and not in limitation of the invention, and in which drawing:
FIG. 1 is a diagrammatic view showing the components of the portable re-circulating/filtering/flushing system and indicating the flow utilized in the method of the invention.
In FIG. 1 a portable re-circulating/filtering/flushing system 20 for cleaning water supply systems in an environmentally responsible and efficient manner comprises at least one pump 21, at least one filter 22 and hoses 23 and 24 forming a closed conduit and filtering system mounted on a truck or other vehicle.
The closed conduit and filtering system conducts a flow of water (flow direction indicated by arrows) between a first point, preferably a hydrant 40A in a water supply system and a second point, preferably another hydrant 40B in a water supply system with water mains 30, 31, and 32 and valves 33 and trunk pipes 41A and 41B connected to the hydrants. The closed system conducts the flow of water out of the water supply system at the first point, the hydrant 40A, through a hose 23 and returns the flow of water, after filtering back into the water supply system at the second point, the hydrant 40B.
At least one pump 21 pumps the flow of water out of the water supply system from hydrant 40A through the filters 22 and back into the water supply system through hydrant 40B. The pump 21 causes an increased flow rate of the water flowing within the water supply system through water main 30 from the second point, hydrant 40B to the first point, hydrant 40A. The increased flow rate through the water main 30 cleans any undesirable matter, including deposits, sediment, and particulates in the water supply system between the two hydrants 40B and 40A.