Speaker damper

Details Speaker damper Speaker damper

2006-02-28

2006-02-28

Ni, Suhan (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Electromagnetic

C381S398000, C381S403000

Reexamination Certificate

active

07006652

ABSTRACT:
A butterfly damper for supporting a voice coil bobbin of a speaker on a frame in a state that the damper is vibrative. The butterfly damper is made of olefinic resin material having an internal loss of 0.045 or greater, a tensile elongation of 200% or greater, and a flexural modulus of 300 MPa or greater.

REFERENCES:
patent: 4190746 (1980-02-01), Harwood et al.
patent: 5790682 (1998-08-01), Hachiya et al.
patent: 6453050 (2002-09-01), Ogura et al.
patent: 09-307992 (1997-11-01), None
patent: 09-307993 (1997-11-01), None

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