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. 05, 1983
Filed:
Nov. 10, 1980
Applicant:
Inventor:
Edmund C Wiggins, Pinellas County, FL (US);
Assignee:
Barry-Wehmiller Company, St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G06M / ; H01J / ;
U.S. Cl.
CPC ...
209526 ; 209588 ; 2502 / ; 356240 ;
Abstract
A method of and apparatus for compensating for signal drift in container inspection apparatus using radiant energy emitters and detectors for scanning the containers in combination with a processing circuit associated with the emitters and detectors for synchronizing the scanning signals and processing the signals in subcircuits such that the signals generated during intervals when no container is being scanned are constantly being examined for drift and signals compensated for drift, if any, are used for comparison with container inspection scan signals to determine if a container needs to be rejected.