EP 0793216 B1 20031119 - Pressure chamber driver
Title (en)
Pressure chamber driver
Title (de)
Druckkammertreiber
Title (fr)
Actionneur pour chambre de compression
Publication
Application
Priority
- DE 19607610 A 19960229
- DE 19626236 A 19960629
Abstract (en)
[origin: EP0793216A2] The pressure chamber (2) over its periphery is connected with a central sound outlet channel (14). The membrane (5) is V-shaped in cross-section and the point (4) of the V is connected with the vibrating coil (3). The arms of the membrane are arched to the acute angle which they enclose. The edges (6,7) of the arms of the V-shaped cross-section membrane are directly tensioned and the membrane comprises a pliable material at least in the area of the tension. The wall (10) of the pressure chamber opposite to the membrane on the side turned away from the vibrating coil is formed in a complementary V formation to the membrane.
IPC 1-7
IPC 8 full level
G10K 9/13 (2006.01); H04R 1/30 (2006.01); H04R 7/14 (2006.01); H04R 9/06 (2006.01)
CPC (source: EP US)
G10K 9/13 (2013.01 - EP US); H04R 1/30 (2013.01 - EP US); H04R 7/14 (2013.01 - EP US); H04R 9/06 (2013.01 - EP US)
Designated contracting state (EPC)
ES FR GB IT
DOCDB simple family (publication)
EP 0793216 A2 19970903; EP 0793216 A3 19991117; EP 0793216 B1 20031119; ES 2210407 T3 20040701; US 5878148 A 19990302
DOCDB simple family (application)
EP 97103076 A 19970226; ES 97103076 T 19970226; US 79783697 A 19970210