Elevator hall call device with integral indicator display element
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 21, 1995
Grant Date -
N/A
app pub date -
Feb 2, 1993
filing date -
Feb 2, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An elevator hall call button includes a switch (20, 56) as well as displays (21, 54, 55) comprising matrices of light emitting diodes to provide an indication to a passenger of the imminence of arrival of the responding car. The display can be floor position (FIG. 5), flashing at a varying speed (FIG. 6) flashing at a lobby floor whenever a car approaches the lobby (FIG. 7) or in response to a lobby call (FIG. 8), an arbitrary number which reduces in response to the car approaching (FIGS. 9 and 10), or time remaining (FIG. 11).
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Family
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Cited Art Landscape
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