초록 ▼

A detection means for filter means in vacuum cleaners, into which in addition to a vacuum cleaner bag at least one additional filter is able to be inserted. It comprises a sensor means responsive to the filter means inserted into said vacuum cleaner and switch means controlled by said sensor means f

A detection means for filter means in vacuum cleaners, into which in addition to a vacuum cleaner bag at least one additional filter is able to be inserted. It comprises a sensor means responsive to the filter means inserted into said vacuum cleaner and switch means controlled by said sensor means for preventing switching of the vacuum cleaner motor if said filter means is not correctly recognized. The at least one electronic sensor means responsive to a detectable element in or on at least one additional filter by means of electromagnetic waves is connected with the switching means via an evaluating or processing means, adapted to check the correct position and design of the at least one detectable element. The renders possible not only the checking of the presence of an additional filter in the vacuum cleaner but furthermore its right placement and the right design for the respective vacuum cleaner so that impairment of and damage to the vacuum cleaner due to fitting the wrong additional filter may be avoided.

대표청구항 ▼

[ What is claimed is:] [1.] A detector assembly for sensing if a filter element is properly mounted to a vacuum cleaner, the vacuum cleaner having a motor, said detector assembly comprising:a sensor connected to the vacuum cleaner to detect the presence of the filter element by transmitting interrog

[ What is claimed is:] [1.] A detector assembly for sensing if a filter element is properly mounted to a vacuum cleaner, the vacuum cleaner having a motor, said detector assembly comprising:a sensor connected to the vacuum cleaner to detect the presence of the filter element by transmitting interrogating signals to determine the presence of at least one detectable element integral with the filter element, said sensor producing a sensor output signal that varies based on the presence, type and position of the detectable element;a processing circuit for receiving said sensor output signal, said processing circuit configured to evaluate said sensor output signal to determine if the sensor output signal indicates said sensor has detected the presence of a select type of detectable element in a select position and, if the detection occurs, to assert a switch-on signal; anda switch for receiving said switch-on signal from said processing circuit, said switch being connected to the motor for regulating actuation of the motor, wherein said switch prevents actuation of the motor unless said switch-on signal is received.