US Patent:
20030215108, Nov 20, 2003
Inventors:
Kenneth Shelley - Lake Worth FL, US
Matthew Martin Ginther - Royal Palm Beach FL, US
International Classification:
H04H005/00
H04R001/00
H04R009/06
H04R011/02
US Classification:
381/397000, 381/396000, 381/398000, 381/016000
Abstract:
An improved speaker having a modified front plate with air intake apertures, a vented frame, and a voice coil supported by a diaphragm constructed of gas impermeable material connected at one end to the frame and at the other end to the voice coil. Operation of the voice coil causes the diaphragm to draw air through the air intake apertures where it is drawn past the voice coil and vented out through the frame. The diaphragm operates as an air pump forcing the air past the voice coil for supplying of cool are and exhausting of heated air. A unidirectional flap may be used on the vented frame to an create air flow current past the voice coil for higher efficiency. The improved speaker provides longevity to the voice coil, the voice coil to diaphragm coupling, and to the diaphragm itself.
