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:
Feb. 05, 1980
Filed:
Aug. 17, 1977
Applicant:
Inventors:
Charlie M Levitt, Victory Park, Johannesburg, ZA;
Samuel Chatterley, Florida Lake, Florida, Johannesburg, ZA;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B07C / ; G01N / ; G01J / ;
U.S. Cl.
CPC ...
209581 ; 209576 ; 250228 ; 356435 ; 209914 ;
Abstract
The colors or surface conditions of small articles are determined by passing the articles through an integrating sphere and separately illuminating the articles before they enter the sphere, during their passage through the sphere and after they leave the sphere. The light transmitted through or reflected by each article is collected by the sphere and passed to analyzing apparatus. The articles are sorted according to the measurements.