Global Patent Index - EP 1084022 A1

EP 1084022 A1 20010321 - 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 20010321 (EN)

Application

EP 00920472 A 20000306

Priority

  • EP 00920472 A 20000306
  • EP 0001869 W 20000306
  • EP 99890106 A 19990325

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

B29C 51/36; H04R 31/00

IPC 8 full level

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 (source: EP)

B29C 51/365 (2013.01); H04R 31/003 (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

DOCDB simple family (publication)

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

DOCDB simple family (application)

EP 0001869 W 20000306; CN 00800961 A 20000306; EP 00920472 A 20000306; JP 2000607808 A 20000306