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. 20, 1980
Filed:
Apr. 06, 1979
Applicant:
Inventors:
Alain Vieu, Longueil Ste. Marie, FR;
Christian Flambard, Aumont-Senlis, FR;
Assignees:
Framatome, Courbevoie, FR;
Centre Technique des Industries Mechaniques, Senlis, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 / ;
Abstract
One or a number of inserts are each fitted within a housing formed in a reference part, each insert being preferably of cylindrical shape and having a predetermined defect in density. An intimate metallurgical bond is formed between the surface of the insert and the housing by depositing a layer of copper on a steel insert when the part is of steel, and by applying a heat treatment. The reference part serves to calibrate testing instruments for ultrasonic metal inspection as well as to determine the character and size of detected defects in density.