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. 29, 1996
Filed:
Jul. 11, 1994
Applicant:
Inventors:
Assignee:
G.D Societa' per Azioni, Bologna, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
25055945 ; 2505594 ; 358237 ;
Abstract
The filling of a cigarette under observation is controlled by intersecting the open-end surface of the cigarette with at least one coherent light blade emitted by at least one laser source, to form a respective real light trace, and by analyzing any deviation or discontinuity of the real trace in relation to a theoretical, straight, continuous trace formed by joining two end points of the real trace, to obtain a signal indicating acceptance or rejection of the cigarette under observation.