BR9911841A - Speakers - Google Patents
SpeakersInfo
- Publication number
- BR9911841A BR9911841A BR9911841-6A BR9911841A BR9911841A BR 9911841 A BR9911841 A BR 9911841A BR 9911841 A BR9911841 A BR 9911841A BR 9911841 A BR9911841 A BR 9911841A
- Authority
- BR
- Brazil
- Prior art keywords
- diaphragms
- diaphragm
- electro
- magnet
- frame
- Prior art date
Links
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
"ALTO-FALANTES". Um alto-falante retangular ou elíptico de painel plano tem um ou mais diafragrnas anisotrópicos 14 e 15 feitos de copolímero de polipropileno de revestimento duplo de núcleo estriado ("core flute") ou de papelão corrugado, tendo uma resistência à curvatura longitudinal maior do que a resistência à curvatura transversal. O diafragma é vibrado por um motor eletroacústico 16 que compreende um ímã 17 e uma bobina de alto-falante 18. Nesta versão o ímã 17 é montado sobre o diafragma traseiro 15 e a bobina do alto-falante 18 é montada sobre o diafragma frontal 14. Os dois diafragmas 14 e 15 são montados em suas bordas a uma armação 11 com o motor eletroacústico 16 montado no espaço encerrado pela armação e os diafragmas."LOUDSPEAKERS". A rectangular or elliptical flat panel speaker has one or more anisotropic diaphragms 14 and 15 made of double-core polypropylene copolymer ("core flute") or corrugated cardboard, having a greater resistance to longitudinal curvature than resistance to transverse curvature. The diaphragm is vibrated by an electro-acoustic motor 16 comprising a magnet 17 and a speaker coil 18. In this version the magnet 17 is mounted on the rear diaphragm 15 and the speaker coil 18 is mounted on the front diaphragm 14 The two diaphragms 14 and 15 are mounted on their edges to a frame 11 with the electro-acoustic motor 16 mounted in the space enclosed by the frame and the diaphragms.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US33077798A | 1998-06-22 | 1998-06-22 | |
PCT/NZ1999/000088 WO1999067974A1 (en) | 1998-06-22 | 1999-06-18 | Loudspeakers |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9911841A true BR9911841A (en) | 2002-04-23 |
Family
ID=23291289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9911841-6A BR9911841A (en) | 1998-06-22 | 1999-06-18 | Speakers |
Country Status (1)
Country | Link |
---|---|
BR (1) | BR9911841A (en) |
-
1999
- 1999-06-18 BR BR9911841-6A patent/BR9911841A/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B25A | Requested transfer of rights approved |
Free format text: GEMINUS LIMITED (NZ), DUO TECH LIMITED (NZ), SEQUEL ADMINISTRATORS LIMITED (NZ), HORIZON ADMINISTRATORS LIMITED (NZ) |
|
B25A | Requested transfer of rights approved |
Owner name: SLAB TECHNOLOGY LIMITED (NZ) Free format text: TRANSFERIDO DE: GEMINUS LIMITED, DUO TECH LIMITED, SEQUEL ADMISTRATORS LIMITED E HORIZON ADMINISTRATORS LIMITED |
|
B08F | Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette] |
Free format text: REFERENTE A 6A, 7A E 8A ANUIDADES. |
|
B08K | Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette] |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1911 DE 21/08/2007. |