The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2002
Filed:
Apr. 14, 2000
Applicant:
Inventor:
C. Ronald Coffin, Topsfield, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 5/00 ;
U.S. Cl.
CPC ...
H05K 5/00 ;
Abstract
A speaker system with a dual cone speaker having interconnected primary speaker and secondary speaker cones. An enclosure defines a first sub-chamber for interacting with the rear of the first speaker cone and a second sub-chamber for interacting with the rear of the second speaker cone. The sub-chambers may be sealed sub-chambers, ported sub-chambers or acoustic waveguides.