Sixbey, Friedman, Leedom & Ferguson, PC
Loudspeaker frame
 A loudspeaker frame has a body, a flange, a plurality of ribs connected therebetween and a metal disc securely retained within the body. The body has a central hole which is concentric to the flange. In an inner periphery of the central hole, a peripheral shoulder is formed for providing support and retaining effect to the metal disc when the frame is injection molded. 
H
H04R
inventional
Yu-ying
Chen