Fire escape – ladder – or scaffold – With indicator – signal or alarm
Patent
1996-09-06
1998-04-21
Braun, Leslie A.
Fire escape, ladder, or scaffold
With indicator, signal or alarm
33366, 33391, E06C 534
Patent
active
057408815
ABSTRACT:
A safety device for detecting improper positioning of a ladder including an alarm connected to an energy source. A longitudinal and lateral level indicator switch are connected between the alarm and energy source with a first orientation for precluding power transfer to the alarm when the ladder is orientated in a safe disposition. The switches further have a second orientation for allowing power transfer to the alarm when the ladder is oriented in a dangerous disposition. Finally, an actuator switch is included for activating the device solely during use.
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patent: 5547412 (1996-08-01), Wilcox
Braun Leslie A.
Smith Richard M.
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