Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1990-06-21
1993-02-09
Oberley, Alvin E.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340783, 34081526, 40449, G09G 316
Patent
active
051856000
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.
REFERENCES:
patent: 3745563 (1973-07-01), Jones et al.
patent: 3975728 (1976-08-01), Winrow
patent: 4091382 (1978-05-01), Anderson et al.
patent: 4163332 (1979-08-01), Salam
patent: 4223464 (1980-09-01), Winrow
Oberley Alvin E.
Unisplay SA
Wu Xiao M.
LandOfFree
Display devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Display devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-327690