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:
Nov. 28, 1978
Filed:
Mar. 14, 1977
Applicant:
Inventors:
John A Mills, London, GB;
Desmond W Molins, London, GB;
Assignee:
Molins Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 38 ;
Abstract
In the manufacture of ventilated filter-tipped cigarettes the continuous wrapper web for the filter rod is formed, at least at longitudinally spaced positions, with perforations or semi-perforations to allow a significant air flow into the filters of the finished cigarettes. The invention includes an apparatus for testing such ventilated cigarettes to check that the degree of ventilation is adequate.