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. 21, 2003
Filed:
Jan. 25, 2001
Applicant:
Inventor:
Ewald Frasl, Biedermannsdorf, AT;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/00 ;
U.S. Cl.
CPC ...
H04R 1/00 ;
Abstract
An electroacoustic transducer ( ) has a magnet system ( ) and a moving coil ( ), which is disposed in the air gap ( ) of the magnet system ( ), and a diaphragm ( ) attached to the moving coil ( ). The diaphragm ( ) has a mounting zone ( ) for mounting the moving coil ( ), and projections ( ) in the mounting zone ( ). The diaphragm ( ) also has an interspace between every two projections ( ), and two stabilizing walls ( ), which are inclined with respect to the diaphragm axis ( ), are arranged in each interspace and are arranged so as to form a roof shape and are formed so as to project beyond the mounting zone ( ) in radial directions.