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:
May. 16, 2000
Filed:
Nov. 27, 1995
Applicant:
Inventor:
Dana B Hathaway, Amesbury, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
181156 ; 181160 ; 181199 ;
Abstract
A vented or bass reflex speaker. The speaker is secured to an inner sleeve which inner sleeve is received within an outer sleeve with the sleeves defining an annulus therebetween. Acoustical flow channels are formed in the annulus. The back of the inner sleeve is spaced apart from the back of the outer sleeve to form a vented volume. The air in the channels is caused, by the loudspeaker driver, to resonate with the volume of air contained within the open-ended inner sleeve forming a Helmholtz element.
Hathaway, Dana. (2000). Compact spiral cavity loudspeaker enclosure (U.S. Patent No. 6062339). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6062339
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile