Global Patent Index - EP 1084022 A1

EP 1084022 A1 2001-03-21 - METHOD OF AND ARRANGEMENT FOR MANUFACTURING A PLASTIC DIAPHRAGM FOR AN ELECTROACOUSTIC TRANSDUCER

Title (en)

METHOD OF AND ARRANGEMENT FOR MANUFACTURING A PLASTIC DIAPHRAGM FOR AN ELECTROACOUSTIC TRANSDUCER

Title (de)

VORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG VON EINER KUNSTSTOFFMEMBRANE FÜR ELEKTROAKUSTISCHE WANDLER

Title (fr)

PROCEDE ET AGENCEMENT PERMETTANT DE FABRIQUER UN DIAPHRAGME EN PLASTIQUE DESTINE A UN TRANSDUCTEUR ELECTROACOUSTIQUE

Publication

EP 1084022 A1 (EN)

Application

EP 00920472 A

Priority

  • EP 00920472 A
  • EP 0001869 W
  • EP 99890106 A

Abstract (en)

[origin: WO0058073A1] An arrangement (1) for and a method of manufacturing a plastic diaphragm (2) use a deep-drawing station (20) which has a deep-drawing die (33) of a sintered material, air present between the front surface (34) of the deep-drawing die (33) and the basic foil (10) which faces this front surface (34) is extracted through the deep-drawing die (33) via the particle-free interstices formed in the sintered material between the particles (60) coalesced by sintering.

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

B29C 51/36; H04R 31/00

IPC 8 full level (invention and additional information)

B29C 51/26 (2006.01); B29C 51/36 (2006.01); H04R 31/00 (2006.01); B29C 35/08 (2006.01); B29C 51/00 (2006.01); B29C 51/10 (2006.01); B29C 65/48 (2006.01); B29L 31/38 (2006.01)

CPC (invention and additional information)

H04R 31/003 (2013.01); B29C 51/365 (2013.01); B29C 51/008 (2013.01); B29C 51/10 (2013.01); B29C 65/48 (2013.01); B29C 2035/0822 (2013.01); B29C 2791/001 (2013.01); B29C 2791/006 (2013.01); B29C 2791/007 (2013.01); B29L 2031/755 (2013.01)

Citation (search report)

See references of WO 0058073A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0058073 A1 20001005; CN 1310665 A 20010829; EP 1084022 A1 20010321; JP 2002539988 A 20021126

INPADOC legal status


2003-09-17 [18W] WITHDRAWN

- Effective date: 20030724

2001-10-24 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010910

2001-06-06 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010405

2001-03-21 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE