Display devices
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United States of America Patent
Stats
-
Feb 9, 1993
Grant Date -
N/A
app pub date -
Jun 21, 1990
filing date -
Jun 23, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotatable display element has a reflective indicating vane comprising a thin sheet which is mounted so as to be in a substantially planar state. Such a thin and light sheet typically has little or no structural rigidity and preferably, according to this invention, the means for mounting the sheet are arranged to provide a tensioning force in the sheet. This causes the sheet to be held in a substantially planar state. The sheet according to this invention is also preferably arranged to be easily removed and replaced when it becomes faded or soiled.
First Claim
Family
International Classification(s)
Cited Art Landscape
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