Loudspeaker

Details Loudspeaker Loudspeaker

2011-06-21

2011-06-21

Kuntz, Curtis (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S389000, C381S340000, C381S408000

Reexamination Certificate

active

07965857

ABSTRACT:
A loudspeaker comprising a magnet unit that generates a magnetic field, and a membrane which is mounted in a frame and which is provided with an electrical conductor arranged in a pattern on the membrane, which membrane is positioned in the magnetic field in such a manner that a force is exerted when current is fed through the conductor pattern on the membrane, which force is capable of setting the membrane in motion so as to produce sound, the frame being provided with metallic cooling members that partially cover the conductor pattern, wherein said cooling members are mounted in a metal housing, making contact with said housing over the larger part of their surface area, or are integral with such a metal housing.

REFERENCES:
patent: 3209084 (1965-09-01), Gamzon et al.
patent: 3991286 (1976-11-01), Henricksen
patent: 4037061 (1977-07-01), von Recklinghausen
patent: 4264789 (1981-04-01), Kaizu et al.
patent: 5426707 (1995-06-01), Wijnker
patent: 6097830 (2000-08-01), Zelinka et al.
patent: 6104825 (2000-08-01), Thigpen
patent: 6111970 (2000-08-01), Voishvillo et al.
patent: 7020301 (2006-03-01), Koura et al.
patent: 7136501 (2006-11-01), Steere et al.

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