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:
Aug. 20, 1985
Filed:
Jan. 09, 1984
Applicant:
Inventor:
Alfred Forster, Schwandorf, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310327 ; 310324 ; 310334 ; 310336 ; 310345 ; 73644 ;
Abstract
The invention relates to an ultrasonic converter with a plate type ceramic oscillator in which metal electrodes are fastened to the oscillator. At one end face of the ceramic oscillator an adaptation layer of plastic is present. The entire ultrasonic oscillator, except for the side of the adaptation layer facing the medium to be insonated, is provided with a foam covering, to reduce decay damping without a substantial loss in the transmission factor.