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    • 8. 发明申请
    • EXHAUST FAN AND METHOD OF OPERATING THE SAME
    • 排风扇及其操作方法
    • US20090130970A1
    • 2009-05-21
    • US12275600
    • 2008-11-21
    • Corey Scott JacakMirko Zakula
    • Corey Scott JacakMirko Zakula
    • F24F7/007
    • F24F7/007F24F13/082F24F2007/001
    • The present invention provides an exhaust fan including a ventilation grille having a plurality of louvers extending across an exterior face of the grille. Two of the louvers can define an opening and can be oriented such that the interior of the fan is obscured from view of a person through the opening, when the person is positioned in the room such that the person's eyes are outside an area of the room defined by a first reference plane oriented at an angle of less than 25 degrees with respect to a second reference plane and intersecting the second reference plane along a horizontal reference line and a third reference plane oriented at an angle of less than 25 degrees with respect to the second reference plane and intersecting the second reference plane along the horizontal line.
    • 本发明提供了一种排风扇,其具有通风格栅,该通风格栅具有跨越格栅的外表面延伸的多个百叶窗。 两个百叶窗可以限定一个开口,并且可以被定向成使得当人被定位在房间中使得人的眼睛在房间的一个区域外面时,风扇的内部被遮蔽,使人的视野通过开口被遮蔽 由第一参考平面限定,第一参考平面相对于第二参考平面以小于25度的角度定向,并且沿着水平参考线和第三参考平面相交,第二参考平面相对于第二参考平面以小于25度的角度定向 第二参考平面并沿着水平线与第二参考平面相交。