Electrostatic loudspeaker stators and their manufacture

Details Electrostatic loudspeaker stators and their manufacture Electrostatic loudspeaker stators and their manufacture

2006-08-04

2010-10-12

Banks, Derris H (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S596000, C029S598000, C310S156720

Reexamination Certificate

active

07810224

ABSTRACT:
A method for manufacturing a stator (24) for an electrostatic loudspeaker in which at least a part of a structure (28) for forming the stator (24) is moulded from an electrically insulating material. This structure (28) may be a frame of the stator. To complete the stator (24), electrically conductive portions (30) are combined with the moulded structure to form a complete structure that includes an electrically conductive grid (29). The electrically conductive portions (30) may be a preformed grid (29). The frame (28) and the grid (29) may be press-fitted together. Alternatively the moulded structure may be electrically conductive, and electrically insulating portions may be combined with it to form a complete stator. Manufacture of electrostatic loudspeaker stators using a moulding process allows for relatively low cost production methods that can repeatedly achieve a required high degree of accuracy.

REFERENCES:
patent: 2896025 (1959-07-01), Janszen
patent: 3935397 (1976-01-01), West
patent: 6804362 (2004-10-01), Zimmermann et al.
patent: 40 22 933 (1990-07-01), None
patent: 4022933 (1992-01-01), None
patent: WO 00/01195 (2000-01-01), None

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