# US 11,432,703 B2 · Automatic and currentless dirt remover

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- Number: US 11,432,703 B2
- Document ID: US11432703B2
- Status: Granted
- Kind: B2
- Application number: 16/771,495
- Filed: 2018-12-06
- Published: 2021-02-25
- Granted: 2022-09-06
- Earliest claimed: 2017-12-12
- Assignees: No Crumbs GmbH
- Applicants: No Crumbs GmbH
- Inventors: Susanne Schmekel
- Web page: https://patentgrep.com/patent/US11432703B2

## CPC

- A47L 25/005: {using adhesive or tacky surfaces to remove dirt, e.g. lint removers}
- B08B 1/10: characterised by the type of cleaning tool
- B08B 6/00: Cleaning by electrostatic means
- 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)
- B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL

## Abstract

An automatic and currentless dirt remover for collecting dirt from the area surrounding the dirt remover, having a dirt-collecting body and a rolling-action sheath body, which defines a receiving space for receiving the dirt-collecting body. The sheath body has a lattice design and openings for providing external access to the dirt-collecting body, which has a surface that collects the dirt.

## Claims

### Claim 1

A method of collecting dirt from an area by means of an automatic and currentless dirt remover-comprising steps of:
arranging the dirt remover in a container carried by a user, the dirt remover including a dirt-collecting body and a rolling-action sheath body, which defines a receiving space in which the dirt-collecting body is received, wherein the sheath body has a lattice design and has openings in order to provide external access to the dirt-collecting body, which has a surface which collects the dirt, wherein an inner surface of the sheath body provides a rolling contour for the dirt-collecting body, along which the dirt-collecting body rolls during automatic dirt removal such that the dirt-collecting body contacts the inner surface of the sheath body and a surface to be cleaned during usage of the dirt remover, wherein the surface of the dirt-collecting body is free of irregularities, thereby providing a smooth surface, wherein the surface of the dirt-collecting body is adhesive, resulting in a chemical attraction of the surface of the dirt-collecting body, wherein the dirt-collecting body is not secured to the sheath body, wherein the inner surface of the sheath body provides the rolling contour for the dirt-collecting body, along which the dirt-collecting body rolls via the surface during the automatic dirt removal, wherein the dirt remover is configured to roll via the latticed sheath body along the surface to be cleaned in order to collect dirt present at the surface to be cleaned since the dirt collected adheres to the adhesive surface of the dirt-collecting body, and wherein the sheath body has at least two sheath body parts which are connected to each other via a press fit or a positive locking,
initiating a movement of the dirt remover by a movement of the user, the movement being transferred to the dirt remover by the container resulting in the dirt remover being propelled currentlessly, and
effecting an automatic and currentless cleaning in the container through the movement of the user of the dirt remover when the container is carried since the dirt remover rolls via the latticed sheath body along the surfaces to be cleaned of the container in which the dirt remover is arranged such that the surface of the dirt-collecting body comes into contact with the surfaces to be cleaned through the openings of the sheath body in order to collect the dirt present there that adheres to the surface of the dirt-collecting body.

### Claim 2 (depends on 1)

The method according to claim 1, characterized in that the dirt-collecting body is received in the receiving space such that the dirt-collecting body can move relative to the latticed sheath body.

### Claim 3 (depends on 1)

The method according to claim 1, characterized in that the dirt-collecting body is a sphere and/or the sheath body is a sphere.

### Claim 4 (depends on 1)

The method according to claim 1, characterized in that the dirt-collecting body has at least one core, which has a higher density than a rest of the dirt-collecting body and/or of the sheath body.

### Claim 5 (depends on 1)

The method according to claim 1, characterized in that the latticed sheath body has a honeycomb structure, wherein the openings are honeycombed.

### Claim 6 (depends on 1)

The method according to claim 1, characterized in that the surface of the dirt-collecting body and/or the surface of the latticed sheath body are or is antibacterial.

### Claim 7 (depends on 1)

The method according to claim 1, characterized in that the dirt-collecting body and/or the sheath body are or is formed from a plastic, a biodegradable plastic, a silicone, a polyamide, a rubber, a ceramic and/or a metal.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the container is a bag, handbag, camera bag, suitcase, rucksack, washbag, pocket or satchel.