Movable or removable closures – Facially opposed primary and auxiliary closure for common... – Auxiliary mounted for movement
Patent
1978-08-02
1981-01-06
Downey, Kenneth
Movable or removable closures
Facially opposed primary and auxiliary closure for common...
Auxiliary mounted for movement
49370, E06B 900
Patent
active
042428360
ABSTRACT:
An energy conserving shutter assembly for the inside of a window for securely additionally closing a window opening in a building so as to insulate the window further and inhibit air leakage past it includes upper and lower track members and a sliding shutter slidable in and between said tracks to open and closed positions, in the closed position of which the shutter closes off said window and maintains an insulating dead air space about it. In preferred embodiments of the invention a pair of shutters is present and is employed cooperatively, sealing means are provided between the shutters, the track and a window frame to inhibit air leakage, the shutters, sealing means and tracks are of thermally non-conductive material(s) and draping members are fastened to and cover the shutters, providing additional insulation.
REFERENCES:
patent: 2841834 (1958-07-01), Poole, Jr.
patent: 3452477 (1969-07-01), Sassano
patent: 4057936 (1977-11-01), Wyatt, Sr. et al.
patent: 4083148 (1978-04-01), Saucier
Downey Kenneth
Kramer Raymond F.
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