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:
Sep. 07, 1993
Filed:
May. 31, 1991
Applicant:
Inventors:
Assignee:
Hutchinson, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01L / ;
U.S. Cl.
CPC ...
436-5 ; 73 1201 ; 73 82 ; 73844 ; 116200 ; 116203 ; 116206 ;
Abstract
A process and device for revealing impact(s) received by a substrate make use of a film capable of being deposited onto said substrate and consisting of a matrix in which are embedded microcapsules intended to be broken during the impact and thus to release product(s) which they enclose and which is (are) endowed with different photoluminenscence properties according to whether it is (they are) encapsulated or released into the matrix.