Patent Number: 6,297,744

Title: Aerialift warning system and method

Abstract: An aerialift warning system and method for use on aerialift equipment to warn the aerialift operator to fasten his/her safety lanyard and to warn persons within the zone of danger below the aerialift boom/basket of the impending danger posed by the descending boom/basket. The system includes a warning module and a speaker. The warning module includes a driver circuit for receiving a boom movement input signal and for asserting an up motion or down motion signal, and a processing circuit for receiving the up motion and down motion signal. The processing circuit contains an execution program to assert one or more warning messages contained in an audio warning circuit. The asserted one or more messages from the audio warning circuit are sent to a speaker.

Inventors: Baillargeon; Paul D. (Chichester, NH), Szakacs; Gabor L. (Nashua, NH), Klughart; Kevin M. (Concord, NH)


International Classification: B66F 17/00 (20060101); G08B 021/00 ()

Expiration Date: 10/02/2018