# US 7,611,555 B2 · Vacuum cleaner bag

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- Number: US 7,611,555 B2
- Document ID: US7611555B2
- Status: Granted
- Kind: B2
- Application number: 11/582,384
- Filed: 2006-10-18
- Published: 2007-04-19
- Granted: 2009-11-03
- Earliest claimed: 2005-10-18
- Assignees: Wolf GmbH
- Inventors: Heinz-Friedrich Wattenberg; Bernd Wehage
- Web page: https://patentgrep.com/patent/US7611555B2

## CPC

- A47L 9/14: Bags or the like; {Rigid filtering receptacles;} Attachment of, or closures for, bags {or receptacles}
- Y10S 55/02: Vacuum cleaner bags
- Y10S 55/03: Vacuum cleaner
- Y10S 383/907: Peculiar, particular shape
- A47L: DOMESTIC WASHING OR CLEANING (brushes A46B; cleaning quantities of bottles or of other hollow articles of one kind B08B9/00; laundry D06F); SUCTION CLEANERS IN GENERAL (cleaning in general B08)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A vacuum cleaner bag includes a bottom part having a substantially rectangular base section. A projecting section is disposed proximate to at least one side of the base section. The projecting section, when folded up for the storage position, rests on the base section. Sidewall sections extend peripherally in a direction away from the bottom part to form an inside space.

## Claims

### Claim 1

A vacuum cleaner bag, comprising:
a bottom part including:
a substantially rectangular base section including an inside surface and an outside surface, and
a projecting end section disposed proximate to at least one side of the base section, the projecting end section being foldable along the one side of the base section; and
sidewall sections extending peripherally in a direction away from the bottom part, the base section together with the sidewalls defining a closed inside space of the vacuum cleaner bag;
wherein the vacuum cleaner bag includes an unfolded state and a folded-up state, and in the folded-up state an inside of the projecting end section is foldable to rest on the inside surface of the base section and in the unfolded state, the projecting end section extends outwardly of the base section.

### Claim 2 (depends on 1)

The vacuum cleaner bag according to claim 1, wherein the projecting end section includes:
projecting sections each disposed proximate to a respective one of opposite sides of the base section.

### Claim 3 (depends on 1)

The vacuum cleaner bag according to claim 1, wherein the projecting end section has a substantially triangular shape.

### Claim 4 (depends on 1)

The vacuum cleaner bag according to claim 1, wherein at least one of the sidewall sections includes a first folding sidewall section and a second folding sidewall sections that come together at a side edge, and the projecting end section presents a tip that adjoins the side edge.

### Claim 5 (depends on 4)

The vacuum cleaner bag according to claim 4, wherein the side edge has:
a folded-in storage position when the vacuum cleaner bag is in the fold-up state, such that the side edge fits inside the sidewall sections so that a surface of the first folding sidewall section contacts a surface of the second folding sidewall section, and
a use position when the vacuum cleaner bag is in the unfolded state in which the side edge projects outward of the sidewall sections so that the surfaces of the first folding sidewall section and the second folding sidewall section do not contact each other.

### Claim 6 (depends on 4)

The vacuum cleaner bag according to claim 4, wherein the sidewall sections are joined in a joining area at an end of the bag opposite the bottom part; to form an edge, and further including:
a transition area between the edge and the side edge and between the first and second folding sidewall sections, wherein the transition area is one of rounded or beveled.

### Claim 7 (depends on 6)

The vacuum cleaner bag according to claim 6, wherein the sidewall sections include:
one or several layers of nonwoven material that are welded together at least along the joining area.

### Claim 8 (depends on 1)

The vacuum cleaner bag according to claim 1, further including:
an inflow opening disposed in one of (1) the base section of the bottom part or (2) one of the sidewall sections.

### Claim 9 (depends on 8)

The vacuum cleaner bag according to claim 8, further including:
a support plate attached to the base section and surrounding the inflow opening.

### Claim 10 (depends on 1)

The vacuum cleaner bag according to claim 1, wherein the sidewall sections are connected to the bottom part and are joined to each other on an end of the bag opposite the bottom part to form the inside space.

### Claim 11 (depends on 1)

The vacuum cleaner bag according to claim 1, wherein the bottom part includes:
a material having a higher rigidity than a material from which the sidewall sections are fabricated.