Patent ID: 8702827
Filing Date: 2014-04-22
Classification: A47L

Abstract:
1. A flat bag for a vacuum cleaner, comprising: a bag upper side and a bag underside, bag walls of which are formed from an air-permeable filter material; an inlet opening in the bag upper side for air to be filtered; and at least one diffuser disposed in at least one corresponding plane in the interior of the flat bag, wherein the diffuser consists of at least two strips of at least one of (a) a material and (b) a sheet material disposed next to each other with oblong-shaped flow openings, wherein at least one side of each of the diffusers is mounted on the bag wall, wherein the diffusers: (a) are formed of sheet materials with oblong-shaped flow openings, (b) are disposed in a first plane in a region of the inlet opening, (c) are mounted on the bag upper side on both sides, and (d) have an area that is greater than 10% of an area of the entire bag surface, and wherein the width of the strips of material is ±50% of a diameter of the inlet opening.