Earl E Houcek

US Patent:

20100254556, Oct 7, 2010

Filed:

Apr 1, 2010

Appl. No.:

12/752262

Inventors:

Daniel Max Warren - Geneva IL, US
Thomas J. Jalava - Homer Glen IL, US
Brad Olson - Park Ridge IL, US
Michael J. Abry - Kildeer IL, US
Earl E. Houcek - Carol Stream IL, US
Mark F. Halla - Glen Ellyn IL, US
Charles B. King - Chicago IL, US

International Classification:

H04R 25/00

US Classification:

381328

Abstract:

A receiver is provided having a balanced armature motor mechanically interconnected to a displaceable diaphragm component. A front volume changes as the displaceable diaphragm component moves. The front volume is connected to a port. A rear volume changes oppositely to the front volume as the displaceable diaphragm moves. An acoustic channel connects to the port and is also connected to a sound outlet. The sound outlet allows acoustic energy to exit from the acoustic channel. A first acoustic pressure is generated in the front volume as the balanced armature motor moves the diaphragm. The acoustic channel and the internal volume are divided by a common wall section, wherein the common wall section is defined by at least one of the walls of the housing which also provides a portion of at least one wall for the acoustic channel.