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7.1.D. - Page 9 IIII1I11111111III11111IIIIIIIIIIIlii111111111111IIIIIliII1III1IIIliillll <br /> US00662708981 <br /> (12) United States Patent (10) Patent No.: US 6,627,089 B1 <br /> Wilkinson (45) Date of Patent: Sep.30,2003 <br /> (54) WAFER MAIN RECIRCULATING/ (56) References Cited <br /> FILTERING/FLUSHING SYSTEM AND <br /> METHOD U.S. PATENT DOCUMENTS <br /> 5,360,488 A 11/1994 Ifieatt et at. <br /> 5,915,395 A * 6/1999 Smith <br /> (76) Inventor: Chris E.Wilkinson,35698 Rd.212, 6,062,259 A * 5/2000 Poirier <br /> Woodlake, CA(US)93286 6,170,514 81 * 112001 Esmailzadeh <br /> * cited by examiner <br /> (*) Notice: Subject to any disclaimer,the term of this Primary Examiner—Robert Popovics <br /> patent is extended or adjusted under 35 (74) Attorney,Agent, or Firm—Donald W. Meeker <br /> U.S.C. 154(b)by 18 days. <br /> (57) ABSTRACT <br /> (21) Appi.No.: 10/121,566 A truck houses a closed recirculation system having a series <br /> (22) Filed: Apr. 12,2002 of hoses,filters and pumps interconnecting a first point and <br /> second point,preferably hydrants,of a water supply system. <br /> (51) Int.CI: CO2F 1/78;BO8B 3/00; A flow of water pumped outside of the water supply system <br /> E0313 7/07 through the filters causes an increased water flow within the <br /> (52) U.S.Cl. 210/754; 210/805; 210/136; section of the water supply system between the second and. <br /> 210/167; 210/196; 210/198.1; 210/241; the first point to clean the section of deposits, sediment, <br /> 210/416.3;210/94; 137/15.05; 134/22.12 particulates and other undesirable matter.All of the filtered <br /> (58) Field of Search 210/754,805, water is returned to the water supply system.The water may <br /> 210/94, 136, 167, 196, 198.1,241,251, be inspected and chlorinated. <br /> 416.3; 137/15.01, 15.04, 15.05; 134/22.11, <br /> 22.12 19 Claims, 1 Drawing Sheet <br /> 31 33 • <br /> tom• 41 B <br /> yr, 40B <br /> T <br /> 24 <br /> 30 28 <br /> 26 <br /> trr - 21 <br /> 258 —20 <br /> 22 <br /> T <br /> 25A <br /> 41A <br /> 32 Q 23 <br /> 16 40A <br /> 33 <br />