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:
Oct. 04, 1994
Filed:
Apr. 26, 1993
Applicant:
Inventor:
Joel P Childress, Sugarland, TX (US);
Assignee:
ESM International, Inc., Houston, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
2502 / ; 209586 ; 382-8 ; 356386 ;
Abstract
Apparatus and method for measuring the reflectivity of a product for use in optical sorting machines that is insensitive to product size and orientation. The percentage reflectivity of a product passing a background is corrected by a frame fill factor, which is representative of the percentage of the viewing frame occupied by the product being sorted.