Elevator call buttons having plural illuminated indications of availability and use
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 3, 1995
Grant Date -
N/A
app pub date -
Oct 21, 1992
filing date -
Oct 21, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Elevator car call buttons and hall call buttons are illuminated in a first fashion (such as a first color or intermittent flashing) to indicate that the service corresponding to that call button is available to passengers (while buttons corresponding to unavailable service would have either no illumination or different illumination); the buttons then become illuminated in a distinctly different way when a service call corresponding to that button has been registered. The illumination may be thin rings surrounding the call button switch or the call button switch itself; many variations of color, position, and flashing vs. steady are disclosed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully