Diaphragm for use with an electro-acoustic transducer and method

Details Diaphragm for use with an electro-acoustic transducer and method Diaphragm for use with an electro-acoustic transducer and method

1994-06-28

1996-05-28

Jordan, Charles T.

Communications, electrical: acoustic wave systems and devices

Signal transducers

Underwater type

29594, 381193, H04R 702

Patent

active

055218865

ABSTRACT:
A diaphragm for use with an electro-acoustic transducer includes a diaphragm portion, an edge portion and a supporting portion. The diaphragm portion is molded by a synthetic resin material, such as polypropylene or the like. The edge portion is molded integrally with the supporting portion by a thermoplastic synthetic resin material and provided at the outer peripheral side of the diaphragm portion. The edge portion is molded integrally with the diaphragm portion by dichromatic molding.

REFERENCES:
patent: 3961378 (1976-06-01), White
patent: 5099949 (1992-03-01), Mitobe
patent: 5321761 (1994-06-01), Kitanishi
Japanese Patent Abstract, No. JP58201496, dated 24 Nov. 1993, vol. 8, No. 49.

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