Operation sensitive reminder

Communications: electrical – Condition responsive indicating system – Specific condition

Patent

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Details

3405681, 34030915, 340527, 340523, 340540, 340528, 340457, 340635, 340679, G08B 1314

Patent

active

059493330

ABSTRACT:
A compact operation sensitive reminder device that is readily attachable to almost any movable item and that emits an alert signal (e.g., audio, visible or tactile) when the item is initially changed from an non-operative condition to an operative condition and then remains silent during the item's operation, and emits the alert signal again only after a certain amount of time that the item has remained non-operative.

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