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:
Aug. 27, 1985
Filed:
Sep. 27, 1982
Heinz-Christen Lorenzen, Wentorf, DE;
Uwe Heitmann, Hamburg, DE;
Kurt-Eckart Petersen, Wentorf, DE;
Peter Pinck, Gross-Hansdorf, DE;
Hauni-Werke Korber & Co. KG., Hamburg, DE;
Abstract
A running web of cigarette paper or the like is perforated in a first portion of its path, thereupon tested for permeability by a pneumatic detector in a second portion of the path, and finally tested for permeability by an optical detector in a third portion of the path. Signals which are generated as a result of pneumatic testing are used to adjust the perforating unit in the first portion of the path. Signals which are generated as a result of testing by the optical detector are compared with a reference signal denoting the desired permeability of the web, and the web and perforating unit are arrested, or the cigarettes which contain defective portions of the web are segregated from satisfactory cigarettes, if the deviation of generated signals from the reference signal exceeds a threshold value.