Global Patent Index - EP 2023654 A1

EP 2023654 A1 2009-02-11 - Flat panel loudspeakers

Title (en)

Flat panel loudspeakers

Title (de)

Plattenlautsprecher

Title (fr)

Haut-parleur en plaques

Publication

EP 2023654 A1 (DE)

Application

EP 07014446 A

Priority

EP 07014446 A

Abstract (en)

The loudspeaker has a vibrator (3) arranged on a flat panel (1b) i.e. ceiling panel, for producing vibrations to excite the panel. A coupling element (5a) is arranged on flat panels (1a, 1b) made of mineral cotton, and connects the panels with each other such that the vibrations are transmitted from one of the panels to the other panel. The panels lie on sides of a cross-beam (7a) of a T-beam (6a). The element has a U-shaped cross-section including an end connected to one of the panels. The cross-section has three sides (11a-11c) that meet each other at right angles.

Abstract (de)

Die Erfindung betrifft einen Plattenlautsprecher mit zumindest zwei Platten (1a bis 1g), zumindest einem Schwingungserzeuger (3), welcher an einer der zumindest zwei Platten so angeordnet ist, dass durch ihn die Platte zum Schwingen anregbar ist, gekennzeichnet durch zumindest ein Koppelelement (5a bis 5f), welches an je zweien der zumindest zwei Platten diese miteinander verbindend so angeordnet ist, dass es Schwingungen einer der zwei Platten zumindest teilweise auf die andere der zwei Platten überträgt.

IPC 8 full level (invention and additional information)

H04R 7/04 (2006.01)

CPC (invention and additional information)

H04R 7/045 (2013.01); H04R 2201/021 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

EP 2023654 A1 20090211

INPADOC legal status


2009-09-02 [18W] APPLICATION WITHDRAWN

- Effective date: 20090724

2009-02-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS