Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent
1993-04-06
1995-06-20
Kuntz, Curtis
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having electrostatic element
381196, 381203, 381165, H04R 2500
Patent
active
054267072
ABSTRACT:
A loudspeaker, comprising a magnet unit which generates a magnetic field and a movable element suspended for resilient movement around a stable rest position for radiating sound with selected properties. The loudspeaker further comprises an electrical conductor connected to the movable element and having current feed terminals. The conductor is placed in the magnetic field such that when current is passed through the conductor a force is exerted on the movable element so that the movable element is displaced from its rest position. The loudspeaker includes a cooling element producing a gas flow for forced cooling of the conductor.
REFERENCES:
patent: 4539442 (1985-09-01), Puls et al.
patent: 4757547 (1988-07-01), Danley
patent: 4811403 (1989-03-01), Henricksen et al.
patent: 5040221 (1991-08-01), Edwards et al.
patent: 5091028 (1992-02-01), Yamazaki et al.
English language abstract of Japanese application 59-138 199, Japanese Abstracts, vol. 8, No. 268 (E-238) [1705], 12/07/84.
Kuntz Curtis
Laine B. V.
Le Huyen D.
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