Flexible or portable closure – partition – or panel – Pleating type – Lazy-tong links pivot about axes parallel to panel
Patent
1991-09-26
1992-03-24
Johnson, Blair M.
Flexible or portable closure, partition, or panel
Pleating type
Lazy-tong links pivot about axes parallel to panel
160238, 361424, 455300, A47G 502
Patent
active
050978853
ABSTRACT:
An aperture covering, such as a window shade, comprises a shade body (10), a shielding member (24) provided on a shade-body periphery facing a window frame (2), and a shade-body winding mechanism (6). The shielding member (24) is conductive and contacts the window frame (2) to close the space between the shade body (10) and the window frame (2). When the winding mechanism (6) winds the shade body (10) down to cover the window frame (2) with the shade body (10), the window shade blocks electromagnetic energy inside and outside a building, while regulating light entering the building through a window.
REFERENCES:
patent: 4391865 (1983-07-01), Constance
patent: 4408255 (1983-10-01), Adkins
patent: 4633322 (1986-12-01), Fourny
patent: 4982053 (1991-01-01), Thornley et al.
Johnson Blair M.
Kitagawa Industries Company
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