Patent ID: 6442907
Filing Date: 2002-09-03
Classification: E04F,E06B,Y10T

Abstract:
A prefabricated window assembly for installation in a window opening of a building, the window assembly comprising:a box-shaped main frame formed of a pair of vertical sections and a pair of horizontal sections, each section having, a rearward portion adapted to be recessed into the window opening of the building, the rearward portion comprising an outwardly open U-shaped channel extending longitudinally along the section, the U-shaped channel having a front sidewall, an inner bottom wall and a rear sidewall opposite the front sidewall, and a frontward portion for protruding out of the building once the window assembly is installed in the window opening and comprising a limb extending longitudinally along the section and frontwards from an outer edge portion of the front sidewall of the U-shaped channel; the frontward portion of the vertical sections and the horizontal sections defining together an intermediate window frame; a pane frame sized to fit in the intermediate window frame and mounted therein, the pane frame being formed of a pair of vertical framing members and a pair of horizontal framing members, each of said framing members having a body mounted along a corresponding one of said frontward portions of the main frame and an arm extending frontwards and outwards from the body so as to substantially hide the main frame when viewed from outside the building when said assembly is mounted in the building, each body and each arm being spaced-apart from a corresponding one of said limbs, and each of said arms having a window pane securing portion; a first thermal insulator secured to and covering each said body and arm of said pane frame; a second thermal insulator secured to and covering an inner surface of each of said limbs; and a window pane having edges each secured to a corresponding one of said window pane securing portions of the pane frame.