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(11)    Patent No :    AP 2391    (73) Applicant(s)       
(21)    Application No :    AP/P/2008/004420    CLEARFORD INDUSTRIES, INC., 515 Legget Drive, Suite       
            100, Ottawa, Ontario K2K 3G4,       
                   
(22)    Filing Date :    27.09.2006    Canada       
(24)    Date of Grant &    30.03.2012           
                   
(45)    Publication :

(30)    Priority Data                    (72) Inventors   
    (33) Country    (31) Number    (32) Date    CONNELLY Richard W, Canada   
    CA            2,521,428        27.09.2005    SMITH Duane, Canada   
    US            60/728,257        19.10.2005       
                               
    US            60/809,637        30.05.2006       
    et al                               
                                (74) Representative   
(84)    Designated State                   
                       
    BW    GM    GH    KE    LS    MW    MZ   NA   SL    HONEY & BLANCKENBERG   
                                   
    SD    SZ    T Z    UG    ZM    ZW           
(51)    International    Classification    E03F 3/02 (2006.01)   
(54)    Title

High performance sewer system

(57)    Abstract

The system comprises one or more of the following: primary treatment units, flexible pipes, and optionally, one or more pumps. The system is designed and

installed in a manner that enables the flow of liquid to be predominantly due to gravity, although one or more pumps may optionally be included at key positions. The system can be sealed and pressure tested in order for optimal

(56)    Documents Cited :    US-5895569 A    US -4124481 A    US-1950841

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