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:
Oct. 16, 2001
Filed:
Oct. 05, 1998
Axel Brenner, Bremen, DE;
Kurt Handschuh, Eckental, DE;
STN Atlas Elektronik GmbH, Bremen, DE;
Abstract
A method of producing a composite ultrasonic transducer having transducer elements comprising piezoelectric ceramic, with the elements being dispersed in plastic and radiating essentially in the longitudinal direction. To reduce production costs, in several method steps, a plurality of flat ceramic bodies (,) having a plurality of parallel, slot-like openings (,) that are closed on all sides are inserted into a casting mold (,), and the casting mold (,) is filled with plastic (,). After hardening, the resulting ingot (,) is unmolded, and, on the unmolded ingot (,), the ceramic material (,) on the end surfaces away from one another and extending transversely to the longitudinal direction of the openings (,) is removed to the point that the plastic material (,) imbedded in the openings (,) is exposed at the end surfaces (,).