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:
Jul. 16, 1996
Filed:
Nov. 08, 1994
Applicant:
Inventors:
Helmut W Klotzsch, Groton, MA (US);
Eugene K Achter, Lexington, MA (US);
Fuquan Gao, Cambridge, MA (US);
Craig D Thompson, Natick, MA (US);
Glenn R Gray, Woburn, MA (US);
Jose A Santos, Ludlow, MA (US);
Assignee:
Thermedics Detection, Inc., Chelmsford, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G06M / ;
U.S. Cl.
CPC ...
2502 / ; 2502081 ; 250574 ; 382191 ; 356240 ; 209582 ;
Abstract
To detect a foaming contaminant in a moving container, an image of the moving container and any contents thereof is produced. Thereafter, image processing techniques are used to determine levels of low and high frequency spatial variations in intensity in the image. The levels of low and high frequency spatial variations in intensity are then compared to determine the presence of a foaming contaminant.