Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Mounting or support feature of housed loudspeaker
Patent
1998-10-22
2000-10-03
Le, Huyen
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Mounting or support feature of housed loudspeaker
381189, 381391, 181149, H04R 2500
Patent
active
061283940
ABSTRACT:
In order to reduce the possibility of moisture, which has seeped into a door from its lower side, contacting with a speaker and also of air pressure building up behind the speaker and hindering the movement of the diaphragm, a waterproof cover 3 is provided which includes a magnet cover 31 which follows the circumference of a magnet 16, a frame cover 32 which partially overlaps with the magnet cover 31 and follows the circumference of the frame 15 when it is combined with a speaker 2, a first aperture 33 placed between the magnet 16 and the magnet cover 31 and a second aperture 34 placed between the magnet cover 31 and the frame cover 32.
REFERENCES:
patent: 4550229 (1985-10-01), Hwang
Hayakawa Fujio
Nakamura Taizo
Saga Ikuo
Yoshida Jun
Le Huyen
Mitsubishi Denki Kabushki Kaisha
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
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