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. 09, 1979
Filed:
Aug. 11, 1977
Applicant:
Inventors:
Karl Ries, Mulheim, DE;
Dieter Kaiser, Mulheim, DE;
Mesa Quaye, Kaarst, DE;
Heinz-Jurgen Boms, Ratingen, DE;
Klaus-Uwe Jannsen, Ratingen, DE;
Assignee:
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73609 ; 73629 ;
Abstract
Ultrasonic response signals resulting from interaction of a test pulse with the structural material are recognized by dynamically tracking the noise level and adding thereto a fixed level; a response signal to be recognized must exceed the resulting variable threshold level.