Acoustic transducer

Details Acoustic transducer Acoustic transducer

2007-09-11

2007-09-11

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C181S150000, C181S152000, C181S192000, C381S340000

Reexamination Certificate

active

10504542

ABSTRACT:
An acoustic transducer provided with at least one sound source for generating an acoustic centre and a predetermined construction for guiding sound generated by the acoustic centre, which acoustic transducer can be fixed to a fixing wall, wherein the predetermined construction is so designed that, during operation, the generated sound is displaced by the predetermined construction to a displaced acoustic centre at a location that is on the fixing wall (5), when the acoustic transducer (10) is fixed to the fixing wall (5).

REFERENCES:
patent: 1962300 (1934-06-01), Ephraim
patent: 2878887 (1959-03-01), Potter
patent: 4214298 (1980-07-01), Propst et al.
patent: 5359158 (1994-10-01), Queen
patent: 6581719 (2003-06-01), Adamson
patent: 7044265 (2006-05-01), Murphy
patent: 7068805 (2006-06-01), Geddes
patent: 0550159 (1993-07-01), None
patent: 07-322387 (1995-12-01), None
International Search Report Jun. 2, 2004.

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