Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having electrostatic element
Patent
1991-01-08
1993-01-19
Dwyer, James L.
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Having electrostatic element
381182, 381188, 381205, H04R 2500
Patent
active
051812533
ABSTRACT:
In a loudspeaker having a yoke assembly including a top plate and a yoke fixedly attached to opposite sides of a magnet to form an air gap between the plate and the yoke into which a voice coil operatively extending from a diaphragm is positioned, the yoke affixed to a magnet base through which electrical terminals extend, one end of the terminals being operatively attached to the voice coil, the magnet base having an open end near the diaphram and being positioned in a housing and the magnet base having a grille covering its open end, and its end opposite the open end being enclosed by a base member of the housing, an improvement to the loudspeaker is provided which comprises the mounting plate having (i) a stud constructed having a head member fixed to the mounting plate and having a shaft extending upward from the plate and toward the yoke wherein the shaft has a threaded section of sufficient length to be screwed into a mating threaded opening in the center section of the yoke, and (ii) at least one passageway extending through the mounting plate to allow electrical wire to pass for operative attachment to the electrical terminals; and wherein the mounting plate is frictionally lockable to the yoke assembly when the threaded section is screwed into the threaded opening.
REFERENCES:
patent: 1952889 (1934-03-01), Pocock et al.
patent: 4465905 (1984-08-01), Nation
patent: 4492826 (1985-01-01), Chiu
patent: 4550229 (1985-10-01), Hwang
patent: 4608463 (1986-08-01), Burgess et al.
patent: 4811406 (1989-03-01), Kawachi
patent: 4821331 (1989-04-01), Murayama et al.
Chan Jason
Dwyer James L.
Kiesel William David
Southern Audio Services, Inc.
Tucker Robert C.
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