EP 0876740 A1 19981111 - LOUDSPEAKER DEVICE
Title (en)
LOUDSPEAKER DEVICE
Title (de)
LAUTSPRECHERGERÄT
Title (fr)
DISPOSITIF A HAUT-PARLEUR
Publication
Application
Priority
- NL 9600104 W 19960306
- NL 9500440 A 19950306
Abstract (en)
[origin: WO9627999A1] A loudspeaker device comprises: a generally tubular housing having a cavity which is closed at a first end and open at a second end; and at least one woofer placed in an opening in the wall of this housing; which cavity comprises seven rotation-symmetrical mutually connecting spaces, which spaces have substantially the same shape and a common axis of symmetry; which spaces have corresponding linear dimensions from the first to the second end with substantially the following respective ratios: (1) 0.53, (2) 0.80, (3) 1.00, (4) 0.89, (5) 0.75, (6) 0.67, (7) 0.60; which spaces have smooth rounded shapes, are mutually connected via necks with smooth rounded shapes and are at least substantially mutually tangential with imaginary basic contour surfaces; wherein a neck widening toward the outside connects onto the space adjacent to the second end.
IPC 1-7
IPC 8 full level
H04R 1/02 (2006.01); H04R 1/28 (2006.01); H04R 1/20 (2006.01); H04R 1/26 (2006.01); H04R 1/40 (2006.01); H04R 5/02 (2006.01)
CPC (source: EP)
H04R 1/2857 (2013.01); H04R 1/2888 (2013.01); H04R 1/227 (2013.01); H04R 1/26 (2013.01); H04R 1/288 (2013.01)
Citation (search report)
See references of WO 9627999A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9627999 A1 19960912; AU 4850296 A 19960923; EP 0876740 A1 19981111; NL 9500440 A 19961001
DOCDB simple family (application)
NL 9600104 W 19960306; AU 4850296 A 19960306; EP 96904382 A 19960306; NL 9500440 A 19950306