Window shade positioning apparatus and method
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United States of America Patent
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N/A
Issued Date -
Dec 1, 2005
app pub date -
May 19, 2005
filing date -
May 27, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An aircraft window shade includes protective transparent window panels, a shade driven by an electric motor, an integral control panel, and support for remote operation. The shade uses dual sprocket drive for positive shade positioning, low wear, and low parts count. The moving shade element remains substantially flat, curving slightly during some phases of positioning. The apparatus replaces a conventional interior window panel and a manual shade with slight change in overall mechanism thickness and weight. Control electronics in the shade can accept a command from a cabin attendant's console to override the local setting and move the shade to a required position, such as fully open for takeoff. The shade supports use of two or more independent shades, each of which can be made of dimming (transparent), diffusing (translucent), or light blocking (opaque) material. The shade is compatible with electrochromic transmittance control technology.
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