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. 05, 1989
Filed:
Apr. 02, 1987
Applicant:
Inventors:
Assignee:
Diffracto Ltd., Windsor, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
356237 ; 356445 ; 358106 ;
Abstract
Disclosed are improvements in the surface inspection method and apparatus invention of our copending application 'Panel Surface Flaw Inspection', Ser. No. 579,971, U.S. Pat. No. 4,629,319, which has now come to be described as 'DiffractoSight'. Particularly disclosed are semi and full automatic techniques for quantifying and locating localized surface distortions. Applications for determination of scratches, paint finish defects and other surface problems are also described. The primary area of application is to cosmetic defects on automobile bodies, appliances, and furniture, and the dies, molds and models and other surfaces used in their manufacture.