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(11)    Patent No :    AP 2033    (73) Applicant(s)       
(21)    Application No :    AP/P/2005/003352    VISION-WALL CORPORATION, 17915-118 Avenue,       
            Edmonton, Alberta, Alberta T5S 1L6,       
                   
(22)    Filing Date :    05.12.2002    Canada       
(24)    Date of Grant &    26.08.2009           
                   
(45)    Publication :

(30)    Priority Data                    (72) Inventors   
    (33) Country    (31) Number    (32) Date    WINFIELD Alan H., Canada   
                                (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    E06B 3/663 (2006.01)    E06B 3/66 (2006.01)   


(54)    Title

Sealing system for an energy efficient window

(57)    Abstract

A heat insulation window includes a pair of outer panes (14, 16) defining an interior air space (12) and held apart by a spacing member which as opposed and parallel first and second outer surfaces. A third outer surface extends between the first (21) and second (23) outer surfaces. The spacing member defines a first sealing groove (32) at the junction between the first (21) and third (19) outer surfaces and a second sealing groove (32) at the junction between the second (23) and third (19) outer surfaces. The sealing grooves (32) are filled with a gas-tight seal element. A metal band (34) overlays the third (19) outer surface and has edge flanges (34A, 34B) which fit into the first and second sealing grooves (32), isolating the third (19) outer surface from the seal element.


(56)    Documents Cited :    WO 99 15753 A   DE 33 02 659 A

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