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:
Nov. 24, 1981
Filed:
Jan. 25, 1980
Applicant:
Inventor:
Phillip W Schiffert, Oak Park, IL (US);
Assignee:
Magnaflux Corporation, Chicago, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01D / ; G09K / ;
U.S. Cl.
CPC ...
2504 / ; 250252 ; 250302 ; 250522 ;
Abstract
A standard specimen for calibrating an ultraviolet scanning system of the type used to detect surface flaws in workpieces by penetrant testing including a piece of glass which has the characteristic of emitting fluorescent radiation upon excitation by ultraviolet light, and a heat conductive carrier element rigidly supporting the piece of glass therein. The standard specimen provides a means for confirming instrumentation stability despite changes in temperature.