Invention Grant
- Patent Title: Loudspeaker
- Patent Title (中): 喇叭
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Application No.: US11444322Application Date: 2006-06-01
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Publication No.: US07809148B2Publication Date: 2010-10-05
- Inventor: Jason Myles Cobb
- Applicant: Jason Myles Cobb
- Agent Stephen R. Greiner
- Main IPC: H04R25/00
- IPC: H04R25/00 ; G10K13/00 ; H04R31/00

Abstract:
A loudspeaker of improved construction includes a frame and a toroidal magnet that is affixed to the rear of the frame. The toroidal magnet has a central passageway that opens into the frame. A cap is affixed to the rear of the magnet and closes the central passageway. A guide rod is affixed to the cap and projects forwardly from the cap into the central passageway. A tubular former is slidably positioned upon the guide rod. A voice coil is wound about, and is affixed to, the tubular former. A forward cone has a narrow, rear end that is affixed to the tubular former and a wide, front end that is affixed to the front of the frame. A rearward cone has a narrow, rearward end with a central opening that loosely receives the tubular former between the rear of the frame and the rear end of the forward cone. The rearward cone also has a wide, forward end that is affixed to the frame rearwardly of the front end of the forward cone. A rearward spider is affixed to the rearward end of the rearward cone and is affixed to the rear of the frame. A forward spider is affixed to the rear end of the forward cone and is affixed to the forward end of the rearward cone.
Public/Granted literature
- US20070280500A1 Loudspeaker Public/Granted day:2007-12-06
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