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. 20, 1992
Filed:
Mar. 18, 1991
Rudi Schmid, Hemhofen, DE;
Hans-Jurgen Achtzehn, Adelsdorf, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An ultrasonic probe for ultrasonically testing screws includes an ultrasonic transducer array having a plurality of ultrasonic transducers. The ultrasonic transducers selectively operate as transmitters and receivers. Coupling bodies of solid material are each acoustically coupled to a respective one of the ultrasonic transducers. Each of the coupling bodies have a free coupling surface facing away from the respective ultrasonic transducer. The coupling surfaces are adapted to the shape of the surface of a head of a screw to be tested. The coupling surfaces are centered on the head of the screw. A method for operating an ultrasonic probe includes placing and centering the coupling surfaces on the surface of the head of the screw. Different ultrasonic transducers are operated in at least one of transmission and reception modes in each of a plurality of measuring steps, for locating and characterizing a flaw in the material of the screw.