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.

Date of Patent:
Aug. 18, 1981

Filed:

Mar. 29, 1979
Applicant:
Inventors:

Heinz Greve, Hamburg, DE;

Gerhard Tolasch, Wentorf, DE;

Uwe Heitmann, Schwarzenbek, DE;

Gunter Wahle, Reinbek, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24C / ; A24D / ;
U.S. Cl.
CPC ...
493-4 ; 156 64 ; 156360 ;
Abstract

The mass of successive increments of a wrapped rod-like filler of filamentary filter material is monitored by a beta ray detector and the signals which are generated by the ionization chamber of the dectector are utilized to adjust the ratio of a variable-speed transmission which regulates the rate of delivery of a stretched tow of filamentary material to the gathering horn of a filter rod making machine.


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