Air inlet for a vacuum cleaner
US-8141200-B2Abstract
A vacuum cleaner 2 having a housing 4 having an inlet 12 and an outlet 54 is disclosed. Actuation of a motor 46 causes a fan to displace air out of outlet 54 , and the resulting suction upstream of the fan draws dirty air through inlet 12 and inwardly through walls of filter element 22 . In order to clean the filter element 22 , the user lifts lid 24 by means of gripping portion 32 , and then removes filter element 22 and dirt collection chamber 16 . Because the central portion of the dirt collection chamber 16 is raised, dirt trapped on the outer surface of filter element 22 has a tendency to fall into trough regions 40, 42 and avoids falling into outlet 38 . If the motor 46 should accidentally be actuated when the filter element 22 is removed, the opening provided by opened lid 24 is nearer to outlet 38 than inlet 12 , as a result of which relatively clean air from the atmosphere passes into recess 36 in preference to dirty air from the inlet 12 , thus minimizing the risk of the motor 46 being damaged by dirt.
Patent figures（8）
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