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:
Dec. 06, 1994
Filed:
Sep. 16, 1992
Applicant:
Inventor:
Richard M Collins, E. Setauket, NY (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01R / ;
U.S. Cl.
CPC ...
324228 ; 324262 ;
Abstract
A laminated structure may be tested for weak joints by passing a magnet over the surface. If the outer surface is of a magnetic material, weak bonding forces will be overcome by the magnet which causes deflection of the magnetic layer, relative to a non-magnetic substrate. The deflection is sensed and signifies the detection of a weak bond area. The testing procedure is accomplished without destructively testing a structure.