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:
Feb. 08, 1994
Filed:
Dec. 09, 1992
Masayoshi Ito, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A speaker cabinet in which a cross section of an outer peripheral portion (11) is formed as an elliptic shape and opening portions (22 to 25) formed on the outer peripheral portion (11) and into which speakers (2 to 5) are mounted are formed as horn shapes whose diameters are improved toward the outside. The speaker cabinet includes a plywood member (10) that is formed by laminating a hard plate member, a soft plate member and a light and soft rear surface plate member on a face front surface plate member. The cabinet is molded in a predetermined curved fashion to have an elliptic shape. Thus, an acoustic characteristic of the speaker cabinet can be increased and a manufacturing cost of the speaker cabinet can be reduced.