Global Patent Index - EP 1100287 A1

EP 1100287 A1 2001-05-16 - Loudspeaker

Title (en)

Loudspeaker

Title (de)

Lautsprecher

Title (fr)

Haut-parleur

Publication

EP 1100287 A1 (EN)

Application

EP 99402807 A

Priority

EP 99402807 A

Abstract (en)

A rectangular, polymorphous or elliptical loudspeaker which is flat and has one or more flat diaphragms 14, 15 made of paper, double skinned fluted polypropylene copolymer, corrugated cardboard, layers of EVA (Ethlene-Vinylacetate), EPS (Polyform), PVC (Polyvinyl Chloride). The panel has a longitudinal bending strength greater than the transverse bending strength. The diaphragm is vibrated by a driver unit 16 which comprises a magnet 17 and voice coil 18. Magnet 17 can be mounted on the rear panel 15 and the voice coil 18 is mounted on the front diaphragm 14. An alternative is to mount magnet 17 on the rear diaphragm instead of panel. The diaphragm 14 is mounted at its edges to a frame 11 with the driver unit 16 mounted in the space enclosed by the frame and the panel 15. <IMAGE>

IPC 1-7 (main, further and additional classification)

H04R 7/06

IPC 8 full level (invention and additional information)

H04R 7/06 (2006.01)

CPC (invention and additional information)

H04R 7/06 (2013.01); H04R 2307/029 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR

EPO simple patent family

EP 1100287 A1 20010516

INPADOC legal status


2003-06-11 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20021130

2002-09-04 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020719

2002-02-13 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: DE FR

2001-08-22 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010626

2001-05-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR

2001-05-16 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI