PERFECCIONAMIENTOS EN EL INDICADOR DEL ESTADO DE CARGA; EN ESPECIAL PARA ASPIRADORAS DE POLVO

摘要

A fill-up indication arrangement for a vacuum cleaner includes a diaphragm adapted to move up and down in response to a pressure build-up in the vacuum cleaner and an indicator disc connected to the diaphragm through a pivotable gear sector and a stop on the indicator disc, which stop engages with the teeth of the gear sector when the indicator disc takes its angular position thus indicating that a filter bag contained in the vacuum cleaner is full and should be replaced.