EP 0214130 A4 19890516 - AERODYNAMIC BASS-REFLEX ENCLOSURE.
Title (en)
AERODYNAMIC BASS-REFLEX ENCLOSURE.
Title (de)
AERODYNAMISCHES BASSREFLEXGEHÄUSE.
Title (fr)
ENCEINTE AERODYNAMIQUE REFLEX POUR HAUT-PARLEUR DES BASSES.
Publication
Application
Priority
US 8500228 W 19850214
Abstract (en)
[origin: WO8605060A1] A ported speaker enclosure (134) for extending the low-frequency range and increasing the intensity of the enclosure (134), the location of the speaker (136), and the size and location of the ducted posts (138), are determined by relatively simple relationships based on the dimensions of the speaker (136).
IPC 1-7
IPC 8 full level
H04R 1/26 (2006.01); H04R 1/28 (2006.01); H05K 5/02 (2006.01)
CPC (source: EP)
H04R 1/2819 (2013.01); H04R 1/2826 (2013.01)
Citation (search report)
- [Y] US 4349084 A 19820914 - KARPODINES MARCO
- [Y] US 4201274 A 19800506 - CARLTON CHRISTOPHER F [US]
- [A] US 3412824 A 19681126 - ARMSTRONG JAMES C
- See references of WO 8605060A1
Designated contracting state (EPC)
AT BE CH DE FR GB LI LU NL SE
DOCDB simple family (publication)
WO 8605060 A1 19860828; EP 0214130 A1 19870318; EP 0214130 A4 19890516; JP S61502718 A 19861120
DOCDB simple family (application)
US 8500228 W 19850214; EP 85901220 A 19850214; JP 50094485 A 19850214