Airflow Indicator Assembly and Method for Vacuum Cleaner

摘要

A vacuum cleaner having an airflow outlet and an airflow indicator assembly removably disposed at the outlet. The airflow indicator assembly includes a pair of fins attached to a spine and a needle disposed between the pair of fins. During operation of the vacuum cleaner, exhaust air is directed through the outlet and towards the needle, pushing the needle thereby indicating whether service is needed. 35% .- -- 25--32 Ale-- Ii - 4 -1 ~---*'I 'i J -34I~ -. FIG. 1