# US 2013/0239508 A1 · Mechanical locking of building panels

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- Number: US 2013/0239508 A1
- Document ID: US20130239508A1
- Status: Published application
- Kind: A1
- Application number: 13/886,916
- Filed: 2013-05-03
- Published: 2013-09-19
- Earliest claimed: 2008-05-15
- Assignees: Välinge Innovation AB
- Applicants: Valinge Innovation AB
- Inventors: PERVAN DARKO; PETERSON JAN
- Web page: https://patentgrep.com/patent/US20130239508A1

## CPC

- E04F 15/02038: {characterised by tongue and groove connections between neighbouring flooring elements}
- E04F 15/02: Flooring or floor layers composed of a number of similar elements (of webs E04F15/16)
- E04F 21/22: of single elements, e.g. flooring cramps {; flexible webs (cutting tiles B28D1/225)}
- E04F 15/04: only of wood {or with a top layer of wood}, e.g. with wooden {or metal} connecting members (rollable parquet E04F15/16)
- E04F 2201/0138: by moving the sheets, plates or panels perpendicular to the main plane
- E04F 2201/0153: by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement
- E04F 2201/0523: Separate tongues; Interlocking keys, e.g. joining mouldings of circular, square or rectangular shape
- E04F 2201/0541: adapted to be moved along the joint edge
- E04F 2201/0547: adapted to be moved perpendicular to the joint edge
- E04F 2201/06: Magnets
- Y10S 52/04: Magnetic connecting means for building components
- Y10T 428/167: Cellulosic sections [e.g., parquet floor, etc.]
- E04F: FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS (windows, doors E06B)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Building panels (1, 1′) are shown, which are provided with a mechanical locking system having tongue (30) of magnetic material that could be locked vertically by a magnetic field. And, a tongue including magnetic material and adapted for being received in a sidewardly open groove of a floor panel, wherein the tongue includes magnetic powder or particles.

## Claims

### Claim 1

(canceled)

### Claim 2

A tongue comprising magnetic material and adapted for being received in a sidewardly open groove of a floor panel, wherein the tongue comprises magnetic powder or particles.

### Claim 3 (depends on 2)

The tongue as claimed in claim 2, wherein the tongue further comprises resins.

### Claim 4 (depends on 2)

The tongue as claimed in claim 2, wherein the magnetic powder or particles comprises iron, nickel or cobalt.

### Claim 5 (depends on 3)

The tongue as claimed in claim 3, wherein the magnetic powder or particles comprises iron, nickel or cobalt.

### Claim 6 (depends on 2)

The tongue as claimed in claim 2, wherein the tongue is injection molded.

### Claim 7 (depends on 2)

The tongue as claimed in claim 2, wherein the tongue comprises wood fibers, iron powder and a thermosetting binder.