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. 08, 1990
Filed:
Mar. 17, 1989
Applicant:
Inventor:
Siegfried Klein, 75009 Paris, FR;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
381190 ; 381191 ; 381202 ;
Abstract
In the case of an electroacoustic transducer with a supporting body carrying coil turns and in particular a vibrating hollow body with a curved surface, such as a magnetostrictive ball, in order to obtain an optimum distribution of the modulation energy, it is proposed that the coil is applied to the supporting body (2) as a flat material corrugated strip (3) at right angles to the running direction.