Compressing arrangement for a dust container

Claim 1

A compressing arrangement for a flexible filter-type dust container of the type used with a vacuum cleaner, a motor-fan assembly, a hand-held working implement and suction hose comprising: a chamber having an inlet for dust and dirt laden air, said filter dust container positioned in said chamber and connected to said inlet, an outlet for air substantially devoid of dirt and dust, said motor-fan assembly transporting said air from said work implement through said suction hose inlet, and said dust container whereby said dust and dirt are separated in said container and cleaned air leaves said chamber through said outlet, a substantially flexible body at least partially surrounding said container, and means selectively and operatively connected to said chamber for permitting the introduction of atmospheric pressure conditions between the interior of said chamber and the outside of said dust container to thereby compress said container with the aid of said air-impermeable body whereby the inner volume of the dust container during a certain period of time becomes smaller than the original volume of said container and alternately to maintain suction conditions within said container.