US 2011/0225766 A1Published application

Vacuum Cleaner

OwnerJian Xueinventor

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Abstract

A vacuum cleaner includes a body having a cavity, an outlet for cleaned air, a filter removably mounted in the cavity upstream of the outlet, at least one device mounted in the body upstream of the filter for separating and collecting dirt and dust entrained in an induced airflow through the cleaner, and a closure for closing an opening in the cavity, the closure being openable for providing access to the filter and separation device through the opening. An arm extends into the cavity for engaging a formation on the filter, the latter holding the arm in a retracted position. If the filter or a component of the separation device is omitted or incorrectly inserted in the body, the arm adopts an extended position and prevents the closure from being closed. In this manner the user is immediately alerted to the fact that the filter or a component of the separation device is not correctly in-situ and remedial action can be taken.

Claims15

Dependent claims

A vacuum cleaner having a body portion comprising:

a cavity;
an outlet for cleaned air;
a filter removably mounted in the cavity upstream of the outlet;
a separation device mounted upstream of the filter for separating and collecting dirt and dust entrained in an induced airflow through the cleaner;
a closure for closing an opening in the cavity, the closure being openable for providing access to the filter through said opening;
and
displaceable means extending into the cavity and arranged to engage the filter for location of the displaceable means in a first position when the filter is correctly in-situ and for location of the displaceable means in a second position when the filter is not correctly in-situ, said displaceable means comprising a portion which obstructs the closure to prevent the closing thereof when the displaceable means is in said second position, wherein said filter is mounted on or against a portion of said separation device, such that said separation device positions said filter correctly in-situ.

4 more elements

Dependencies are inferred from the claim text.