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:
Dec. 10, 1996
Filed:
Nov. 15, 1994
Applicant:
Inventors:
Assignee:
Japan Tobacco Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01B / ;
U.S. Cl.
CPC ...
356237 ; 356394 ; 356426 ; 2505594 ; 25055946 ; 131905 ; 131906 ; 131907 ; 131908 ;
Abstract
A device for inspecting the filter end face of a filter cigarette is provided with an optical sensor having an aperture ring for emitting a measuring light toward the filter end face and receiving the light reflected from the filter end face and outputting a detection signal corresponding to the luminous energy of the reflected light, a hood for covering the aperture ring of the optical sensor, a plurality of injection holes for injecting compressed air into the hood, and a processing unit for determining whether the filter end face is normal or not in accordance with the detection signal output from the optical sensor.