Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Electromagnetic
Reexamination Certificate
2008-01-29
2008-01-29
Kuntz, Curtis (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Electromagnetic
C381S403000, C381S404000
Reexamination Certificate
active
07324659
ABSTRACT:
A frame is provided with an opening allowing insertion of a jig for setting an inner rim of a suspension holder to a proper position. The jig ensures positive alignment of the suspension holder when making connection to the frame. The jig also ensures reliable bonding of a diaphragm to the suspension holder with a bonding agent, since it steadily supports the suspension holder in position during the bonding process. The positioning of the bobbin and a voice coil is thus reliable when being assembled, thereby improving acoustic performance of a speaker.
REFERENCES:
patent: 6031925 (2000-02-01), Shteyn
patent: 6095280 (2000-08-01), Proni
patent: 2003/0185415 (2003-10-01), Funahashi et al.
patent: 2005/0078849 (2005-04-01), Funahashi et al.
patent: 2005/0201588 (2005-09-01), Funahashi et al.
patent: 2004-7331 (2004-01-01), None
Funahashi Osamu
Morimoto Hiroyuki
Okamoto Yukio
Kuntz Curtis
Matsushita Electric - Industrial Co., Ltd.
Nguyen Tuan Duc
Wenderoth , Lind & Ponack, L.L.P.
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