Weather resistant porting

Details Weather resistant porting Weather resistant porting

2006-05-02

2006-05-02

Ni, Suhan (Department: 2646)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having acoustic wave modifying structure

C381S345000, C381S348000, C381S397000, C381S341000, C381S338000, C181S149000

Reexamination Certificate

active

07039212

ABSTRACT:
A port for a loudspeaker is disclosed which is sufficiently weather resistant for long term outdoor use and which prevents debris, insects and other vermin from entering the loudspeaker and which is compact and efficient.

REFERENCES:
patent: 4210778 (1980-07-01), Sakurai et al.
patent: 4997057 (1991-03-01), Furukawa
patent: 5517573 (1996-05-01), Polk et al.
patent: 5629502 (1997-05-01), Nakano
patent: 5809154 (1998-09-01), Polk
patent: 6079515 (2000-06-01), Newman

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