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:
Jan. 23, 2001
Filed:
Feb. 12, 1999
Applicant:
Inventors:
Ewald Frasl, Biedermannsdorf, AT;
Erich Klein, Himberg, AT;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 2/500 ;
U.S. Cl.
CPC ...
H04R 2/500 ;
Abstract
An electroacoustic transducer (,) having a voice coil (,) and having a diaphragm (,) with an annular intermediate zone (,) for securing the voice coil (,), the intermediate zone (,) having angularly spaced-apart trough portions (,) which are each bounded by a trough bottom wall (,) and two trough side walls (,), and the voice coil (,) being secured to the trough bottom walls (,).