Dust bag
Assignee3M Innovative Properties Company
InventorBertus Dijkman
Life of this patent
Estimating the term…
Abstract
The invention relates to a dust bag to be used primarily in vacuum cleaners, the dust bag having at least two opposing wall portions of filter material in an overlaying state and an intake opening for receiving a socket piece of a vacuum cleaner. The two opposing wall portions are connected to each other at one edge forming an outer edge of the dust bag. The wall portions each have recess open to the outer edge. The recesses (36a, 36b) are identical in their shape and size and opposed to each other in the overlaying state. The two recesses of the wall portions form the intake opening. Additionally, the intake opening can be surrounded by a mounting means for mounting the dust bag at a socket piece from which dust-like material is discharged. The mounting means includes at least two mounting elements each fixed to one of the two wall portions.
Claims12
A method for manufacturing dust bags, particularly for vacuum cleaners, comprising the steps of:
- overlaying two wall portions of a filter material such that said wall portions are connected along an outer edge of the bag, and
- cutting recesses into both wall portions within one step which recesses are open to said outer edge and together form an intake opening.
The method for manufacturing dust bags particularly for vacuum cleaners, comprising the steps of:
- overlaying two wall portions of a filter material such that said wall portions are connected along an outer edge of the bag;
- fixing a mounting element to each of said wall portions at the outer sides such that the mounting elements are opposed to each other and arranged adjacent to said outer edge of said wall portions;
- and
- cutting recesses into both wall portions and both mounting elements within one step which recesses are open to said, outer edge and form an intake opening.
Dependencies are inferred from the claim text.