Double-hung window arrangement and an electrical window...

E - Fixed Constructions – 05 – F

Patent

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Details

E05F 15/00 (2006.01) E05F 15/16 (2006.01)

Patent

CA 2168814

A double-hung window arrangement comprises a substantially rectangular main frame and vertically slidable upper and lower sash sections. A remotely operated electrical window operator for the upper sash section comprises an operator housing with an electric drive motor and transmission means arranged on a horizontal upper part of the main frame and a chain engaged in the housing by the transmission means and having a free end secured to an upper horizontal member of the upper sash section so as to be non-detachable from the upper horizontal member at least in any open position of the upper sash section.

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