Integral active and passive silencer

Details Integral active and passive silencer Integral active and passive silencer

1994-04-29

1996-04-30

Kuntz, Curtis

Electrical audio signal processing systems and devices

Acoustical noise or sound cancellation

Adjacent ear

381 94, 415119, 181224, A61F 1106, H03B 2900

Patent

active

055132669

ABSTRACT:
An integral active and passive silencer particularly useful for industrial applications. The integral unit is easy to install, disassemble and service. It provides a housing that can be separated into portions, with each portion containing an active or passive silencer. The invention also provides an active silencer having a ported tube that is in acoustic communication with one or more loudspeakers through a tuning chamber. The ported tube can be removable.

REFERENCES:
patent: 4359136 (1982-11-01), Eriksson
patent: 4665549 (1987-05-01), Eriksson et al.
patent: 4969536 (1990-11-01), Allen
patent: 5044464 (1991-09-01), Bremigan
patent: 5088575 (1992-02-01), Eriksson
patent: 5229556 (1993-07-01), Geddes
patent: 5233137 (1993-08-01), Geddes
patent: 5272286 (1993-12-01), Cain

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