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:
Dec. 19, 1978
Filed:
Dec. 02, 1976
Applicant:
Inventor:
Martin J Nagel, Russell Township, Geauga County, OH (US);
Assignee:
Tenna Corporation, Warrensville Heights, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R / ; H04R / ;
U.S. Cl.
CPC ...
179 / ; 1791 / ;
Abstract
A high-efficiency loudspeaker with a split voice coil and directly coupled push-pull audio amplifier circuit, especially useful when energized through a single-ended, low voltage, external power source to increase the output of a relatively low-power audio amplifier without undue distortion.