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:
Jan. 03, 1984
Filed:
Oct. 01, 1980
Joachim Reuland, Neu Bo/ rnsen, DE;
Hauni-Werke Ko/ rber & Co. KG., Hamburg, DE;
Abstract
Apparatus for measuring the density of a cigarette rod which is moved lengthwise has a source of penetrative radiation at one side and a single ionization chamber at the other side of the path of the rod. A reciprocable slide or diaphragm causes the radiation to alternately penetrate through the rod and thereupon into the chamber in a first position and to bypass the rod in a second position of the slide or diaphragm. The ionization chamber converts radiation which has penetrated through the rod into first electric signals and the radiation which has bypassed the rod into second electric signals. An evaluating circuit stores each second signal during the next-following interval of generation of first signals, and the evaluating circuit compares the first signals with that second signal which is then stored in the evaluating circuit. Signals denoting the difference between the first signals and the stored second signal can be displayed and/or used to adjust the machine which produces the rod if the difference between the first signals and the stored second signal is indicative of unsatisfactory density.